EP3173533A1 - Flächenabdichtelement für baukörper - Google Patents

Abstract

Described is a Flächenabdichtelement 1 for building. The Flächenabdichtelement 1 has a flat support 2, wherein it is the sheet-like support is a plastic film, and arranged on the sheet-like support 2, inseparably connected to the sheet-like support 2, textile layer 3, wherein it is in the textile layer is a nonwoven, wherein the textile layer 3 is present over the entire surface impregnated with a non-tacky adhesion promoter, and wherein the Flächenabdichtelement 1 has a thickness | ≤ 1.5 mm.

Description

Technical area

The invention relates to a Flächenabdichtelement for building.

State of the art

When building structures, the problem arises of sealing the structure against ingress of moisture and water. Structures in the ground such as foundation, floor slab and entire basement area of a building must be impervious to soil moisture as well as oppressive and non-pressurized water, but also to the ingress of gas. If for the construction of the outer walls of the building precast concrete parts, such as concrete double wall elements used, so arise at the junctions between the double wall elements as well as at the junctions of double wall elements and bottom plate joints that must be suitably sealed.

In the case of a sealing method known by the term "black tank", the entire outer surface of the structure embedded in water-bearing soil is sealed. For this purpose, the structure is provided on its base and on its side walls with Flächenabdichtelementen and so waterproof packed. At the joints between the concrete parts, the surface seals must be carefully laid and welded in order to prevent ingress of water.

Flächenabdichtelemente are usually attached to the in-situ concrete facing surface of the formwork wall and go after casting a solid bond with the fresh concrete. The Flächenabdichtelemente remain after stripping on the outside of the concrete area adhere and thus form a surface seal.

The EP 2 349 707 B1 discloses a surface seal consisting of a Schott layer, a composite layer and a discontinuous between composite layer and Schott layer sealing means. As a Schott layer, a flexible plastic film is used, while a felt or a nonwoven fabric is used as the composite layer. The sealant is an adhesive or hot melt adhesive. The fleece attached to the plastic film allows fresh concrete to partially penetrate.

The DE 692 13 507 T2 describes a surface seal with a carrier layer, on the entire surface of a pressure-sensitive adhesive layer is applied. On the adhesive layer, a fleece is arranged, which allows the fresh concrete to penetrate far enough to form a bond with the pressure-sensitive adhesive layer.

In these, known from the prior art solutions, the problem arises in practice that after attaching the Flächenabdichtelemente on the formwork wall often for days on the surface seal is around to do work before finally the concrete is poured. The result of this is that the adhesive is pushed out by the fleece and sticks to the shoes of the workers stepping on the surface sealing elements. As a result, on the one hand the movement is made more difficult for the workers and on the other hand, the surface of the fleece is attacked or even destroyed by the sticky shoes, as with each step, the fleece is pulled up.

In addition, the solutions known from the prior art require a great deal of effort in the production since all surfaces provided with adhesive must be directly further processed and covered, since these surfaces stick together immediately on contact with themselves or other parts.

Presentation of the invention

This is where the invention starts. It is a Flächenabdichtelement be provided for building available, which is easy to handle and ensures a secure seal of the structures against water and moisture. This object is achieved by the Flächenabdichtelement according to independent claim 1. Further advantageous aspects, details and embodiments of the invention will become apparent from the dependent claims, the description and the drawings.

The present invention provides a surface sealing member for building. The Flächenabdichtelement has a flat carrier, wherein it is the sheet-like support is a plastic film, and arranged on the flat support, inseparably connected to the flat support, textile layer, wherein the textile layer is a nonwoven. The textile layer is impregnated over its entire surface with a non-tacky adhesion promoter. The Flächenabdichtelement has a thickness I ≤ 1.5 mm.

By the term "impregnation" or "impregnation" is generally an infiltrating treatment of solid porous materials, such. As textiles, paper, wood or concrete, with dissolved, emulsified or dispersed substances. Such dissolved, emulsified or dispersed substances are referred to as impregnating agents. After evaporation or drying of the solvent or dispersion medium, the applied substances impart modified service properties to the treated materials.

The surface sealing element according to the invention for building has a textile layer which is impregnated over its entire surface with a non-tacky bonding agent. To produce the Flächenabdichtelements a textile fabric is impregnated with an impregnating agent which contains a non-sticky adhesion promoter in the form of a solution, emulsion or dispersion. The impregnating agent penetrates the fabric completely, penetrating into all pores, channels and openings of the textile. After evaporation or drying of the solvent or dispersion medium, the non-tacky adhesion promoter remains in the textile fabric or on all surfaces of the textile fabric.

A "primer" is generally understood to mean a substance which, by virtue of its properties, makes it possible to combine two materials which, owing to their chemical composition, can only be joined together very poorly by adhesives or which under poor environmental conditions are poorly bonded to one another can be connected. Bonding agents create a bond between the material and the adhesive in poorly bondable materials or surfaces or they improve the adhesion, if there are special requirements, such. As high wet / wet strength or temperature loads. Adhesion promoters are therefore used when different materials have to be glued together, which can not be connected to each other directly by an adhesive, or if a particular adhesive is to be used because of its special properties, but does not adhere well enough on one of the two adhesive partners.

The inventively provided use of a non-sticky adhesion promoter, a Flächenabdichtelement is provided for building whose textile layer has no adhesive. For this reason, no further measures are required to protect the surface seal during the construction phase. Even when the surface seal is heavily loaded by workers moving on the textile surface of the surface seal, there is no damage to the surface seal, since there can be no bonding of shoe soles to the surface seal, for example, even in the short term.

In addition, by using a non-tacky adhesion promoter, the textile layer can be made thinner and thus less expensive. This too is due to the fact that no damage to the textile layer due to bonding occur on the construction site. The adhesion promoter also increases the surface area of the fibers of the textile layer, as a result of which more adhesive surface area is available to the in-situ concrete, which at the same time improves the adhesion between fibers and concrete and thus between the area sealing element and concrete.

The use of adhesion promoters instead of the adhesives known from the prior art makes it possible to provide the textile layer of the Flächenabdichtelements with a smaller thickness, which is associated with the already mentioned advantages with respect to the rear safety. Therefore, the entire Flächenabdichtelement can be realized with a smaller thickness, thereby saving material, required storage space reduced and transport costs are reduced.

Surprisingly, it has also been found that by impregnating a textile fabric with an impregnating agent, which contains a non-tacky adhesion promoter in the form of a solution, emulsion or dispersion, and subsequent drying of the textile fabric, a significantly better bond can be produced than with a Surface seal consisting of a support and a thermally bonded, impregnated with adhesive, textile layer is possible.

The Flächenabdichtelement invention also shows very excellent properties in the sealing of structures against water and gas. The flat carrier prevents the penetration of gas and / or water, so it is a substantially gas- and / or waterproof flat carrier.

The nonwovens used according to the invention as a textile layer are available at favorable prices, have the required flexibility and provide a large specific surface area at which the adhesion promoter can adhere. Due to the very small perforations present in nonwovens, the impregnating agent can pass through and, after drying, is available as adhesion promoter on the surface facing away from the flat support for connection to the in-situ concrete. Since the textile layer is impregnated over its entire area with the non-tacky adhesion promoter, adhesion promoter is available over the entire surface of the surface sealing element, which bonds with the fresh concrete when casting the in-situ concrete.

The present invention provides surface sealing members having a thickness of less than 1.5 mm and a laminated nonwoven. From the prior art is no Such a thin sealing foil known in the zugeleich the required Hinterlaufsicherheit is given.

The textile layer is preferably a nonwoven which consists of polyester. Polyester nonwovens are available at reasonable prices and have particularly favorable properties in terms of flexibility and specific surface.

According to a preferred embodiment, the textile layer has a basis weight of 20 g / m ² to 70 g / m ² , preferably 35 g / m ² to 60 g / m ² , more preferably about 50 g / m ² . By a fleece with such a small basis weight and thus also a small thickness, the rear safety of the surface seal can be improved. The reason for this is that, when using a thin textile layer, the concrete can penetrate more easily up to the flat support. As a result, the emergence of even the smallest cavities is prevented, so that subsequently there is no room for water ingress.

According to the invention, the flat carrier is a plastic film. A plastic film satisfies the requirement of sufficient gas and water impermeability and advantageously has sufficient flexibility to allow rolling of the surface sealing element.

The plastic film is preferably a plastic film consisting of polyvinyl chloride, polyethylene, polypropylene, propylene oxide, polyurethane, in particular thermoplastic polyurethane, or a thermoplastic elastomer based on olefin. By a plastic film of the materials mentioned arise for the Flächenabdichtelement very good properties in the sealing of structures against water and gas. At the same time a Flächenabdichtelement is obtained, which has the flexibility required for a rolling. Tests have shown that a plastic film of polypropylene as a flat carrier has the best properties with regard to preventing the penetration of gas and / or water.

Advantageously, a plastic film used as a flat carrier has a thickness of 300 .mu.m to 1200 .mu.m, preferably a thickness of 500 .mu.m to 800 .mu.m. A plastic film of this thickness not only has sufficient gas and water impermeability, but also has enough flexibility to allow rolling of the surface sealing member.

The planar support preferably has a basis weight of from 200 g / m ² to 700 g / m ² , particularly preferably from 350 g / m ² to 600 g / m ² , particularly preferably around 500 g / m ² . With respect to those desired for the sheet carrier of a Flächenabdichtelements Properties have been found that a flat carrier made of plastic polypropylene with a basis weight of 500 g / m ^{2 is} best suited.

A plastic dispersion, latex dispersion, resin, epoxy resin, crosslinkable synthetic resin, latex, latex emulsion, cement adhesive mortar, natural rubber, synthetic rubber, organofunctional silane, bitumen rubber, butyl is preferred for producing the Flächenabdichelements as impregnating agent for the fabric Rubber, bitumen or a substrate, in particular a substrate based on alkyd or acrylic resin, or used or an impregnating agent containing one or more of these materials. The said impregnating agents have been found to be particularly suitable for impregnating the textile fabric. The bonding agent contained in the impregnating agent is uniformly distributed over the entire surface of the textile fabric after drying and evenly distributed over the entire surface of the textile layer after the thermal bonding.

Preferably, the Flächenabdichtelement has a thickness l ≤ 1.2 mm. The use of adhesion promoters instead of the adhesives known from the prior art makes it possible to provide the textile layer of the Flächenabdichtelements with a smaller thickness, which is associated with the already mentioned advantages with respect to the rear safety. Therefore, the entire Flächenabdichtelement can be realized with a smaller thickness, thereby saving material, required storage space reduced and transport costs are reduced. These advantages are particularly evident when the surface sealing element has a thickness of l ≤ 1.2 mm.

According to a particularly preferred embodiment, the textile layer of the Flächenabdichtelements on its surface facing away from the carrier surface pimple-like elevations. Due to the formation of pimples on top of the textile layer whose surface can be additionally increased, resulting in an improved connection to the in-situ concrete. By on the surface of the carrier layer facing away from the textile layer arranged knob-like elevations a mechanical bond with the fresh concrete is ensured. The particularly good properties of such a Flächenabdichtelements are due to the fact that the Flächenabdichtelement simultaneously enters into a mechanical bond and an adhesive bond with the fresh concrete. The knob-like elevations are preferably formed hemispherical, in principle, however, arbitrarily shaped elevations can be used.

Preferably, the flat carrier has knob-like elevations on its surface facing away from the textile layer. The knob-like elevations are preferably formed hemispherical, but in principle arbitrarily shaped elevations can be used. When used on site, the Flächenabdichtelement is usually attached to a formwork wall, wherein the planar support of the Flächenabdichtelements is in contact with the formwork wall. Nub-like elevations on the upper side of the planar support cause a smaller contact surface with the formwork wall. When attaching the Flächenabdichtelements on the formwork the Flächenabdichtelement is usually pulled over the formwork. In the case of knob-like elevations, the friction forces occurring are not absorbed by the entire flat carrier, but essentially by the knob-like elevations. In addition, the Flächenabdichtelement often adheres strongly after the casting of concrete on the formwork wall. By the knob-like elevations, the contact surface between the formwork wall and Flächenabdichtelement is reduced, thereby facilitating the removal of the formwork after curing of the concrete. On the Flächenabdichtelement thus lower forces, whereby damage can be avoided.

According to a particularly preferred embodiment, both the textile layer of the Flächenabdichtelements on its surface facing away from the surface carrier surface and the flat carrier on its surface facing away from the textile layer knob-like elevations.

Also preferred is an embodiment in which the flat carrier has knob-shaped depressions on its surface facing away from the textile layer. The knob-shaped depressions are preferably formed hemispherical, but in principle any indentations can be used. By introducing the pimple-shaped depressions into the surface of the planar support facing away from the textile layer in more detail below, compulsory knob-like elevations form on the surface of the planar support facing the textile layer. When casting the in-situ concrete penetrates through the textile layer up to the flat carrier in the Flächenabdichtelement. By the knob-like elevations on the textile layer facing surface of the sheet carrier creates an additional toothing between flat support and concrete.

The Flächenabdichtelement invention has a high flexibility, whereby a winding and thereby a transport in the form of rolls are made possible. Preferably, the surface sealing member is wound on rollers in the form of webs 50 meters long and 1.0 meter to 2.0 meters wide, whereby the weight of a single roll remains within a range that allows easy handling on the job site. Preferably, the weight of a roll should not exceed 50 kg.

The present invention also includes methods of making any of the above-described surface sealing members.

A method comprises the steps of a) providing a flat carrier, wherein the flat carrier is a plastic film, b) providing a textile fabric, wherein the textile fabric is a nonwoven, c) impregnating the textile fabric with an impregnating agent containing a non-tacky coupling agent, the impregnating agent having a dynamic viscosity η ≤ 500 mPas and the textile soaking at room temperature, d) drying the fabric impregnated with the impregnating agent containing a non-tacky coupling agent, and e) thermal bonding of the dried, impregnated with a non-tacky adhesion promoter, fabric with the planar support to form a arranged on the flat support, inseparably connected to the planar support, all over with a nic ht-tacky adhesion promoter impregnated, textile layer.

A further method comprises the steps of a) providing a flat carrier, wherein the flat carrier is a plastic film, b) providing a textile fabric, wherein the textile fabric is a nonwoven, c) thermally bonding the textile D) impregnating the textile layer with a impregnation agent containing a non-tacky adhesion promoter, wherein the impregnation agent has a dynamic viscosity η ≦ 500 mPas and the impregnation of the textile layer takes place at room temperature, and e) drying of the textile layer impregnated with the impregnating agent containing a non-tacky adhesion promoter to form an inseparable from the planar support arranged on the planar support ger, textile layer impregnated over the entire surface with a non-tacky adhesion promoter.

The term "impregnated with impregnating agent" is understood in the context of the present text to mean a state in which the textile fabric has absorbed an amount of impregnating agent which lies above or at least close to the maximum absorption capacity of the textile fabric for the corresponding impregnating agent. This ensures that after drying of the fabric the textile layer connected to the flat support is impregnated over its entire surface with the non-tacky bonding agent, so that over the entire surface of the Flächenabdichtelements bonding agent is available, which forms a bond with the casting during casting of the in-situ concrete Fresh concrete is received.

The impregnating agents used in the process according to the invention have a dynamic viscosity η ≦ 500 mPas. In contrast to the adhesives used in the prior art, which generally have a viscosity of more than 3000 mPas, the impregnants used according to the present invention with the adhesion promoters contained therein have a significantly lower dynamic viscosity. As a result, the impregnation of the textile fabric or the impregnation of the textile layer with the impregnating agent containing a non-tacky adhesion promoter is significantly simplified. In particular, it is possible to carry out the impregnation of the textile fabric or the impregnation of the textile layer at room temperature, which is required over the solutions of the prior art, in which highly viscous bitumen or similar materials are used for their processing temperatures above 150 ° C. are, a significant simplification of the process and also a significant energy savings means.

By the above-mentioned methods, the surface sealing elements according to the invention can be produced quickly, easily and inexpensively. A Flächenabdichtelement made on the above types can be rolled up easily after drying without sticking.

The impregnated and subsequently dried textile fabric can also be easily rolled up and temporarily stored before being thermally bonded to the flat support. It is therefore not absolutely necessary to carry out all production steps directly after one another in the production of the surface sealing element. This makes it possible, for example, to carry out individual work steps spatially separated from each other, whereby cost-effective outsourcing is possible. In the case of the surface sealing elements known from the prior art, such a procedure is not possible because of the tackiness of the textile layer.

As is expressed by the two methods mentioned above, the thermal bonding of textile fabric and flat support can take place before or after the impregnation of the textile fabric or the textile layer. Better properties of the resulting Flächenabdichtelemente arise when the thermal bonding takes place after the impregnation step.

The preferred embodiments described in more detail below relate to both methods according to the invention, ie they are independent of whether the thermal bonding of the textile fabric and the flat support is carried out before or after the impregnation of the textile fabric or the textile layer.

Preferably, step e) is followed by step f) passing through the surface sealing element obtained in step e) by an arrangement of calender rolls, at least one calender roll in contact with the textile layer having nub-shaped recesses. By this method, a Flächenabdichtelement can be produced, the textile layer has knob-like elevations on its surface facing away from the surface carrier surface, which is associated with the advantages already described above. The nub-like elevations of the textile layer are preferably formed hemispherical, but in principle can be used arbitrarily shaped elevations. To produce the calender rolls need only be equipped with the corresponding knob-shaped depressions.

Also preferred after step e) is step f) passing through the surface sealing element obtained in step e) by an arrangement of calender rolls, at least one calender roll contacting the textile layer having knob-shaped depressions and at least one calender roll contacting the planar support has knob-shaped depressions performed. By this method, a Flächenabdichtelement be prepared in which both the textile layer of the Flächenabdichtelements on its surface facing away from the surface carrier surface and the flat carrier on its surface facing away from the textile layer knob-like elevations. The knob-like elevations are preferably formed hemispherical, in principle, however, arbitrarily shaped elevations can be used. To produce the calender rolls need only be equipped with the corresponding knob-shaped depressions.

Also preferred after step e) is step f) passing through the surface sealing element obtained in step e) by an arrangement of calender rolls, at least one calender roll contacting the textile layer having knob-shaped depressions and at least one calender roll contacting the planar support has knob-like elevations carried out. In this method, a Flächenabdichtelement is produced, which is formed with knob-like elevations on the side facing away from the flat carrier side of the textile layer. These nub-like elevations are also present as depressions in the planar support.

A plastic dispersion, latex dispersion, resin, epoxy resin, crosslinkable synthetic resin, latex, latex emulsion, cement adhesive mortar, natural rubber, synthetic rubber, organofunctional silane, bitumen rubber, butyl rubber, bitumen or a base, is preferred as the impregnating agent. in particular a base based on alkyd or acrylic resin, or an impregnating agent containing one or more of these materials is used. The impregnants mentioned have proven particularly suitable for impregnating the textile fabric shown. The adhesion promoter contained in the impregnating agent is distributed evenly over the entire surface of the textile layer after drying.

According to a particularly preferred embodiment, the impregnating agent has a dynamic viscosity η ≦ 50 mPas, preferably η ≦ 10 mPas. In contrast to the adhesives used in the prior art, which generally have a viscosity of more than 3000 mPas, the impregnants used according to the present invention with the adhesion promoters contained therein have a significantly lower dynamic viscosity. For example, a deep ground used in the present invention as an impregnating agent has a dynamic viscosity of 10 mPas.

By using a low viscosity impregnant, soaking of the fabric is very easy because the pores and apertures of the fabric are not clogged, unlike the use of adhesive. When using adhesive adhesive-free areas remain in the fabric due to sealed with adhesive pores always back.

The impregnating agent preferably has a density p of 0.98 g / cm ³ ≦ ρ ≦ 1.08 g / cm ³ , particularly preferably 1.01 g / cm ³ ≦ ρ ≦ 1.06 g / cm ³ , particularly preferably ρ ≈ 1.04 g / cm ³ . For example, a substrate used particularly preferably as impregnating agent in the context of the present invention has a density of 1.04 g / cm ³ .

The impregnation of the textile fabric with impregnating agent is preferably carried out with the aid of an immersion bath, through which the textile fabric is drawn, and then stripping off over-fitting material. The impregnating agent can basically also be sprayed on or rolled up onto the textile fabric.

After the thermal bonding of the dried textile fabric impregnated with a non-tacky adhesion promoter to the flat support to form a textile layer integral with the nonwoven adhesive impregnated on the planar support and inseparably bonded to the planar support, the Sheet sealing element preferably in the form of 50 meters long and 1.0 meters to 2.0 meters wide webs wound on rollers, whereby the weight of a single role remains in an area that allows easy handling on the job site. Preferably, the weight of a roll should not exceed 50 kg.

Laying the Flächenabdichtelemente is basically both with and without overlap area, so shock to jerk, possible. For this purpose, for example, a thin, tear-resistant film is attached with adhesive surface under the shock and glued the adjacent Flächenabdichtelemente on the film. Alternatively, an adhesive tape with a butyl surface is also suitable for securely sealing the joint.

Ways to carry out the invention

The invention will be described below with reference to an embodiment in conjunction with the FIG. 1 be explained in more detail. The FIG. 1 shows an embodiment of a Flächenabdichtelements 1 according to the invention for building in section perpendicular to the plane of the flat support 2 in a schematic representation.

FIG. 1 shows a Flächenabdichtelement 1 with a polyethylene film 2 as an example of a flat carrier. The polyethylene film 2 has a basis weight of about 500 g / _M ² . With the polyethylene film 2 is a nonwoven layer 3 made of polyester inextricably linked as a textile layer. The polyester fleece 3 is impregnated over its entire surface with a substrate as a non-tacky adhesion promoter and has a basis weight of 50 g / m ² .

The polyethylene film 2 has knob-like elevations 5 on its surface facing away from the polyester fleece 3. Likewise, the polyester fleece 3 on its surface facing away from the polyethylene film 2 knob-like elevations 4. The knob-like elevations 4, 5 are hemispherical in shape.

The shown a Flächenabdichtelement 1 can be easily rolled up without sticking and shows excellent properties with respect to the seal against water and gas.

LIST OF REFERENCE NUMBERS

1

Flächenabdichtelement

2

polyethylene film

3

fleece

4

nub-like elevations of the nonwoven layer

5

knob-like elevations of the flat carrier

Claims (18)

A surface sealing element (1) for structural bodies, comprising a flat carrier (2), the flat carrier being a plastic film, and a textile layer (2) connected to the flat carrier (2) and inseparably connected to the flat carrier (2). 3), wherein the textile layer is a non-woven, wherein the textile layer (3) is impregnated over its entire surface with a non-tacky adhesion promoter, and wherein the Flächenabdichtelement (1) has a thickness l ≤ 1.5 mm. Surface sealing element (1) according to claim 1, characterized in that it is the textile layer (3) is a non-woven of polyester. Flächenabdichtelement (1) according to any one of claims 1 or 2, characterized in that the textile layer (3) has a basis weight of 20 g / m ² to 70 g / m ² , preferably 35 g / m ² to 60 g / m ² , more preferably about 50 g / m ² . Flächenabdichtelement (1) according to one of claims 1 to 3, characterized in that it is the flat support (2) to a plastic film consisting of polyvinyl chloride, polyethylene, polypropylene, propylene oxide, polyurethane, in particular thermoplastic polyurethane, or a thermoplastic elastomer based on olefin is. Flächenabdichtelement (1) according to one of claims 1 to 4, characterized in that the flat carrier (2) has a basis weight of 200 g / m ² to 700 g / m ² , preferably 350 g / m ² to 600 g / m ² , more preferably about 500 g / m ² . Surface sealing element (1) according to one of claims 1 to 5, characterized in that the adhesion promoter in its form as impregnating a plastic dispersion, latex dispersion, resin, epoxy resin, crosslinkable synthetic resin, latex, latex emulsion, cement adhesive mortar, natural rubber , Synthetic rubber, organofunctional silane, bitumen rubber, butyl rubber, bitumen or a substrate, in particular a base based on alkyd or acrylic resin, or one or more of these materials. Surface sealing element (1) according to one of claims 1 to 6, characterized in that the Flächenabdichtelement (1) has a thickness l ≤ 1.2 mm. Flächenabdichtelement (1) according to one of claims 1 to 7, characterized in that the textile layer (3) on its the flat carrier (2) facing away from the surface knob-like elevations (4). Flächenabdichtelement (1) according to one of claims 1 to 8, characterized in that the flat carrier (2) on its surface facing away from the textile layer (3) has knob-like elevations (5). Surface sealing element (1) according to one of claims 1 to 9, characterized in that the flat carrier (2) on its the textile layer (3) facing away from the surface has knob-shaped depressions. A method of producing a Flächenabdichtelements (1) according to claims 1 to 10 with the steps a) providing a flat carrier (2), wherein the flat carrier is a plastic film, b) providing a textile fabric, wherein the textile fabric is a nonwoven, c) saturating the textile fabric with a impregnation agent containing a non-tacky adhesion promoter, wherein the impregnation agent has a dynamic viscosity η ≦ 500 mPas and the impregnation of the textile fabric takes place at room temperature, d) drying the fabric impregnated with the impregnating agent containing a non-tacky coupling agent, e) thermal bonding of the dried, with a non-sticky adhesion promoter impregnated textile fabric with the flat carrier (2) to form a on the flat support (2) arranged inseparably connected to the flat carrier (2), all over with a non - Sticky primer impregnated, textile layer (3). A method of producing a Flächenabdichtelements (1) according to claims 1 to 10 with the steps a) providing a flat carrier (2), wherein the flat carrier is a plastic film, b) providing a textile fabric, wherein the textile fabric is a nonwoven, c) thermally bonding the textile fabric to the planar support (2) to form a textile layer (3) arranged on the planar support (2) and inseparable from the planar support (2) d) impregnating the textile layer with a non-tacky adhesion promoter impregnating agent containing, wherein the impregnating agent has a dynamic viscosity η ≤ 500 mPas and the impregnation of the textile layer takes place at room temperature, e) drying the textile layer impregnated with the impregnating agent containing a non-tacky adhesion promoter to form a textile layer (FIG. 2) which is inseparably bonded to the planar support (2) and fully impregnated with a non-tacky adhesion promoter ( 3). The method of claim 11 or 12, wherein after step e) step f) passing through the surface sealing element obtained in step e) by an array of calender rolls, wherein at least one calender roll contacting the textile layer (3) has knob-shaped depressions. A method according to claim 11 or 12, wherein after step e) step f) passing through the surface sealing element obtained in step e) by an array of calender rolls, wherein at least one calender roll contacting the textile layer (3) has knob-shaped depressions and at least one Having calender roll in contact with the flat carrier (2) has knob-shaped depressions. A method according to claim 11 or 12, wherein after step e) step f) passing through the surface sealing element obtained in step e) by an array of calender rolls, wherein at least one calender roll contacting the textile layer (3) has knob-shaped depressions and at least one Having calender roll in contact with the flat carrier (2) has knob-like elevations. Method according to one of claims 11 to 15, characterized in that the impregnating agent is a plastic dispersion, latex dispersion, resin, epoxy resin, crosslinkable synthetic resin, latex, latex emulsion, cement adhesive mortar, natural rubber, synthetic rubber, organofunctional silane, bitumen Rubber, butyl rubber, bitumen or a substrate, in particular a base based on alkyd or acrylic resin, is used or an impregnating agent containing one or more of these materials is used. Method according to one of claims 11 to 16, characterized in that the impregnating agent has a dynamic viscosity η ≤ 50 mPas, preferably η ≈ 10 mPas. Method according to one of claims 11 to 17, characterized in that the impregnating agent has a density ρ of 0.98 g / cm ³ ≤ ρ ≤ 1.08 g / cm ³ , preferably 1.01 g / cm ³ ≤ ρ ≤ 1, 06 g / cm ³ , more preferably p ≈ 1.04 g / cm ³ .

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