GB2045109A - Coating process - Google Patents

Coating process Download PDF

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Publication number
GB2045109A
GB2045109A GB7910202A GB7910202A GB2045109A GB 2045109 A GB2045109 A GB 2045109A GB 7910202 A GB7910202 A GB 7910202A GB 7910202 A GB7910202 A GB 7910202A GB 2045109 A GB2045109 A GB 2045109A
Authority
GB
United Kingdom
Prior art keywords
coating
liquid
layer
coating composition
applying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB7910202A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PANG CHEMICAL VULCANIZERS Ltd
Original Assignee
PANG CHEMICAL VULCANIZERS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PANG CHEMICAL VULCANIZERS Ltd filed Critical PANG CHEMICAL VULCANIZERS Ltd
Priority to GB7910202A priority Critical patent/GB2045109A/en
Publication of GB2045109A publication Critical patent/GB2045109A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48—Macromolecular compounds
    • C04B41/4857—Other macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B41/4861—Polyalkenes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61—Coating or impregnation
    • C04B41/62—Coating or impregnation with organic materials
    • C04B41/63—Macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2530/00—Rubber or the like

Abstract

A method is provided for applying a coating to the surface of a substrate which comprises applying an adherent coating of a liquid chemically self- vulcanising rubber based coating composition to said surface, applying to said coating a layer of a woven or non woven fibrous material and applying a further coating of liquid chemically self- vulcanising rubber based coating composition to said applied fibrous layer.

Description

SPECIFICATION Coating process This invention relates to a method of providing a substrate with a coating, for exam ple a protective coating.
The use of liquid rubber based coating compositions for providing protective coatings is well known.
For example, it is well known to apply, for example by painting or spraying, a protective impervious rubber based membrane to the internal surfaces of vessels such as tanks, to floors and to pipes.
It is, however, difficult to obtain by conventional spraying or painting techniques a layer which is sufficiently thick and strong to withstand abrasion, accidental damage or adverse environmental conditions.
According to the present invention there is provided a method of applying a coating to the surface of a substrate which comprises applying an adherent coating of a liquid chemically self-vulcanising rubber coating composition to said surface, applying to said coating a layer of a woven or non woven fibrous material and applying a further coating of liquid chemically self-vulcanising rubber based coating composition to said applied fibrous layer.
Preferably, the coating composition comprises a solution or suspension of a natural or synthetic rubber, for example neoprene rubber.
The nature of the fibrous material is not unduly critical, but it is preferred that the layer is selfsupporting in order to reinforce the applied coating to a sufficiently high degree. Examples of suitable fibrous materials include polyesters, polyamides, for example nylon, rayon, cotton and fibre glass. These materials may, for example be applied in the form of a non-woven felt, in the form of cords, or in the form of a woven fabric, preferably of an open weave.
The coating material may be applied by any convenient means, for example by hand brushing, but it is preferable to apply the liquid coating composition by a spraying operation.
Although adequately thick cdatings can be achieved by applying only two coatings of rubber based liquid coating composition with a single interposed layer of fibrous material, greater thicknesses can be built up by adding further coatings of coating composition preferably with additional interposed layers of fibrous material.
As indicated, the coating composition is selfvulcanising, i.e. it can include conventional vulcanising agents and accelerators, for example tetramethyl thiuran disulphide and 2-mercaptobenzimidazole and similarly, conventional solvents may be used, such as, for example trichloroethylene and trichlor ethane.
Where the liquid rubber based coating composition is of the two component type, the components may be mixed prior to application and then, for example, sprayed using a single jet spray gun or alternatively, the components may be mixed during the spraying operation.
In order to ensure adequate adhesion between the srst layer of rubber based coating composition and the substrate, the substrate surface is preferably keyed by wire brushing, sanding or shot blasting and then cleaned, preferably using a chlorinated organic solvent. Subsequently, the clean surface may be primed, for example using a dilute rubber solution.
The following Example illustrates the process of the invention: Example A concrete floor surface was cleaned using a trichloroethane solvent and then primed with a liquid rubber priming composition sold by Pang Chemical Vulcanizers Limited under the trade name "Pang Hartol Primer". When dry, a second liberal coat of Pang Primer was applied.
A layer of Pangit liquid A & B chemical self vulcanizing rubber also sold by Pang Chemical Vulcanizers Limited was then applied to the primed surface. A woven glass fibre fabric mesh was then laid over the layer of rubber based coating composition and finally a further layer of Pangit liquid A & B applied over the glass fibre layer. The Pangit liquid A & B was applied using a single canister single jet De Vilbis spray gun the two components (A & B) of the liquid rubber composition being mixed before charging to the spray canister.
Other methods of applying the rubber based liquid can be used in accordance with the invention, for example hand brushing.
1. A method of applying a coating to the surface of a substrate which comprises applying an adherent coating of a liquid chemically self-vulcanising rubber based coating composition to said surface, applying to said coating a layer of a woven or non woven fibrous material and applying a further coating of liquid chemically self-vulcanising rubber based coating composition to said applied fibrous layer.
2. A method according to Claim 1 wherein the coating composition comprises a solution or suspension of a natural or synthetic rubber.
3. A method according to any preceding claim wherein the layer of fibrous material is in the form of a non-woven felt, in the form of cords or in the form of a woven fabric.
4. A method according to any preceding claim wherein the liquid coating composition is applied by a spraying operation.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (4)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Coating process This invention relates to a method of providing a substrate with a coating, for exam ple a protective coating. The use of liquid rubber based coating compositions for providing protective coatings is well known. For example, it is well known to apply, for example by painting or spraying, a protective impervious rubber based membrane to the internal surfaces of vessels such as tanks, to floors and to pipes. It is, however, difficult to obtain by conventional spraying or painting techniques a layer which is sufficiently thick and strong to withstand abrasion, accidental damage or adverse environmental conditions. According to the present invention there is provided a method of applying a coating to the surface of a substrate which comprises applying an adherent coating of a liquid chemically self-vulcanising rubber coating composition to said surface, applying to said coating a layer of a woven or non woven fibrous material and applying a further coating of liquid chemically self-vulcanising rubber based coating composition to said applied fibrous layer. Preferably, the coating composition comprises a solution or suspension of a natural or synthetic rubber, for example neoprene rubber. The nature of the fibrous material is not unduly critical, but it is preferred that the layer is selfsupporting in order to reinforce the applied coating to a sufficiently high degree. Examples of suitable fibrous materials include polyesters, polyamides, for example nylon, rayon, cotton and fibre glass. These materials may, for example be applied in the form of a non-woven felt, in the form of cords, or in the form of a woven fabric, preferably of an open weave. The coating material may be applied by any convenient means, for example by hand brushing, but it is preferable to apply the liquid coating composition by a spraying operation. Although adequately thick cdatings can be achieved by applying only two coatings of rubber based liquid coating composition with a single interposed layer of fibrous material, greater thicknesses can be built up by adding further coatings of coating composition preferably with additional interposed layers of fibrous material. As indicated, the coating composition is selfvulcanising, i.e. it can include conventional vulcanising agents and accelerators, for example tetramethyl thiuran disulphide and 2-mercaptobenzimidazole and similarly, conventional solvents may be used, such as, for example trichloroethylene and trichlor ethane. Where the liquid rubber based coating composition is of the two component type, the components may be mixed prior to application and then, for example, sprayed using a single jet spray gun or alternatively, the components may be mixed during the spraying operation. In order to ensure adequate adhesion between the srst layer of rubber based coating composition and the substrate, the substrate surface is preferably keyed by wire brushing, sanding or shot blasting and then cleaned, preferably using a chlorinated organic solvent. Subsequently, the clean surface may be primed, for example using a dilute rubber solution. The following Example illustrates the process of the invention: Example A concrete floor surface was cleaned using a trichloroethane solvent and then primed with a liquid rubber priming composition sold by Pang Chemical Vulcanizers Limited under the trade name "Pang Hartol Primer". When dry, a second liberal coat of Pang Primer was applied. A layer of Pangit liquid A & B chemical self vulcanizing rubber also sold by Pang Chemical Vulcanizers Limited was then applied to the primed surface. A woven glass fibre fabric mesh was then laid over the layer of rubber based coating composition and finally a further layer of Pangit liquid A & B applied over the glass fibre layer. The Pangit liquid A & B was applied using a single canister single jet De Vilbis spray gun the two components (A & B) of the liquid rubber composition being mixed before charging to the spray canister. Other methods of applying the rubber based liquid can be used in accordance with the invention, for example hand brushing. CLAIMS
1. A method of applying a coating to the surface of a substrate which comprises applying an adherent coating of a liquid chemically self-vulcanising rubber based coating composition to said surface, applying to said coating a layer of a woven or non woven fibrous material and applying a further coating of liquid chemically self-vulcanising rubber based coating composition to said applied fibrous layer.
2. A method according to Claim 1 wherein the coating composition comprises a solution or suspension of a natural or synthetic rubber.
3. A method according to any preceding claim wherein the layer of fibrous material is in the form of a non-woven felt, in the form of cords or in the form of a woven fabric.
4. A method according to any preceding claim wherein the liquid coating composition is applied by a spraying operation.
GB7910202A 1979-03-22 1979-03-22 Coating process Withdrawn GB2045109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7910202A GB2045109A (en) 1979-03-22 1979-03-22 Coating process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7910202A GB2045109A (en) 1979-03-22 1979-03-22 Coating process

Publications (1)

Publication Number Publication Date
GB2045109A true GB2045109A (en) 1980-10-29

Family

ID=10504075

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7910202A Withdrawn GB2045109A (en) 1979-03-22 1979-03-22 Coating process

Country Status (1)

Country Link
GB (1) GB2045109A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156295A2 (en) * 1984-03-28 1985-10-02 Hering-Mitgau, Mane, Dr. Process for coating mineral materials with elastomers, and product obtained by this process
EP0475000A2 (en) * 1990-08-25 1992-03-18 VORWERK & CO. INTERHOLDING GmbH Coating system
US5277728A (en) * 1991-09-25 1994-01-11 Albany International Corp. Method for manufacturing a belt
DE4429785C1 (en) * 1994-08-23 1996-01-25 Heidelberger Baustofftech Gmbh Coating system for cement-bound floors
GB2349652A (en) * 1999-03-04 2000-11-08 Roger William Dodd A method of padding a hard surface

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156295A2 (en) * 1984-03-28 1985-10-02 Hering-Mitgau, Mane, Dr. Process for coating mineral materials with elastomers, and product obtained by this process
EP0156295A3 (en) * 1984-03-28 1987-08-05 Reinhard Friedrich Hering Process for coating mineral materials with elastomers, and product obtained by this process
US4794027A (en) * 1984-03-28 1988-12-27 Hering Reinhard F Process for coating a base material with an elastomer and product produced by such process
EP0475000A2 (en) * 1990-08-25 1992-03-18 VORWERK & CO. INTERHOLDING GmbH Coating system
EP0475000A3 (en) * 1990-08-25 1992-08-05 Heidelberger Zement Ag Coating system
US5277728A (en) * 1991-09-25 1994-01-11 Albany International Corp. Method for manufacturing a belt
DE4429785C1 (en) * 1994-08-23 1996-01-25 Heidelberger Baustofftech Gmbh Coating system for cement-bound floors
GB2349652A (en) * 1999-03-04 2000-11-08 Roger William Dodd A method of padding a hard surface
GB2349652B (en) * 1999-03-04 2003-09-24 Roger William Dodd Padded surfaces

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)