RU2744596C1 - Device for surface decoration (options) - Google Patents

Abstract

FIELD: construction industry; design; repair; interior decoration.

SUBSTANCE: invention relates to the field of the construction industry, design, repair and interior decoration, in particular to options for performing tools for decorating surfaces, such as, for example, walls, ceilings, floors, horizontal surfaces, interior elements, vases, front parts and furniture doors, and also interior doors, frames for mirrors, facades of buildings and structures, etc. The device refers to construction and finishing tools and is designed to create texture and / or pattern when decorating surfaces with paint, decorative plaster and similar volumetric deformable plastic materials. The claimed device is intended for use with electromechanical tools that provide the claimed invention with axial rotation, such as, for example, a drill, screwdriver. The inventive device contains a shank, which is a shaft, one end of which is intended to be fixed in the clamping mechanism of a tool that allows rotational movement, and at the other end of which a working body (tip) is rigidly fixed, which consists of decorating elements and can be made in various versions. In some embodiments, the working body is one or more decorating elements attached directly to one end of the shank, in other embodiments of the invention, the working body comprises a base on which the decorating elements are fixed and by means of which the working body is fixed to the shank.

EFFECT: expanded arsenal of technical means for decorating various surfaces, and also in the fact that the use of a device for decorating surfaces makes it possible to increase the productivity and production rate by making the device removable, with the possibility of connecting an electromechanical drive for rotating the working body, and also allows creating fundamentally new patterns and decorative effects and decorating various shapes of surfaces.

9 cl, 5 ex, 12 dwg

Description

The invention relates to the field of the construction industry, design, repair and decoration of premises, in particular to options for performing tools for decorating surfaces, such as, for example, walls, ceilings, floors, horizontal surfaces, interior elements, vases, facades and furniture doors, and also interior doors, frames for mirrors, facades of buildings and structures, etc.

The device refers to construction and finishing tools and is designed to create texture and / or pattern when decorating surfaces with paint, decorative plaster and similar volumetric deformable plastic materials. The claimed device is intended for use with electromechanical tools such as, for example, a drill, screwdriver, providing the claimed invention with axial rotation. The claimed device contains at least a shank, at one end of which a working member is fixed, while the other end of the shank is installed in the clamping mechanism of an electromechanical tool providing rotation.

Currently, the creation of decorative effects on decorated surfaces is carried out using hand tools.

So, in the patent for a useful model RU 110029 "Decorative panel for furniture and interior doors" (IPC В44С 5/04, published: 10.11.2011 Bul. No. 31) describes a method of drawing a pattern on decorative plaster using hand tools such as a roller, sponge, stencil, brush, trowel, spatula, "comb", brush, as well as with fingers.

The disadvantage of using a hand tool is a limited set of created patterns and designs, as well as low productivity of the work performed.

It is also known from the prior art "Device for surface finishing" (utility model patent RU 102650, IPC E04F 21/16, published 03/10/2011 Bull. No. 7), which contains a working body with a shaft and rubbing plates, equipped with an electromechanical forced rotation drive working body kinematically connected to the engine. This device is placed on a self-propelled cart. Signs of the known technical solution, which are common with the claimed one, are the presence of a working body connected to an electric drive of forced rotation. The disadvantage of this device, which prevents the achievement of the required technical result, is that the known device is intended for applying and leveling mortar, and not for decorating surfaces, and also the fact that with the help of the working body of this device it is impossible to create various decorative textures and patterns on surfaces ... In addition, the device is bulky, and the working body is mounted without the possibility of quick removal and replacement during finishing work.

The prior art does not know devices for decorating surfaces, the working body of which is removable, with the possibility of connecting to an electromechanical drive (for example, a screwdriver, drill, perforator, etc.) or a pneumatic drive for transmitting rotary motion to the working body.

The technical result of the invention consists in expanding the arsenal of technical means for creating patterns and textures when decorating the surface with volumetric deformable plastic materials.

The technical result also lies in the fact that the use of a device for decorating surfaces allows to increase productivity and production rate by making the device removable, with the possibility of connecting an electromechanical drive to rotate the working body, and also allows you to create fundamentally new patterns and decorative effects and allows you to decorate various forms surfaces.

The specified technical result in any of the claimed embodiments is achieved by the fact that the device contains a shank, which is a shaft, one end of which is intended to be fixed in the clamping mechanism of a tool that provides the possibility of rotational movement, and at the other end of which the working body (tip) is rigidly fixed. The working body consists of decoration elements and can be made in various versions: in some embodiments, the working body is one or more decoration elements fixed directly at one end of the shank, in other embodiments of the invention, the working body contains a base on which the decoration elements are fixed , and by means of which the working body is fixed on the shank.

The claimed device in any embodiment is easily installed in the clamping mechanism of the rotating electromechanical drive, and is easily removed, which allows a quick change of the working body in the process of decorating.

The shape of the shank cross-sectional profile can be any shape, for example, circular, hexagonal, octagonal, and the like. The outer surfaces of the shank are in contact with the clamping mechanism of the tool that provides rotation (drills, screwdrivers, etc.) and are clamped in it. The axis of rotation of the claimed device coincides with the axis of the shank.

The working body is one or a group of decorative elements (for example, brushes, brushes, petals, bowls with smooth, wavy or jagged edges, napkins, sponges, as well as rods, ropes, etc.) of various shapes, sizes, configurations and rigidity ... These elements can be fixed directly on the shank, made with the shank as a whole, or fixed on the base, in the center of which there is a simple or threaded hole intended for fastening with the shank. Also, these elements can be fixed on the base without a hole - then the connection to the shank is carried out by means of glue, welding, soldering or mechanical fasteners such as self-tapping screws, clamps, couplings, rivets, etc.

The base can be a brush clip, a brush block, a sleeve, a bushing, a platform with decorative elements fixed on it, etc.

Decorating elements of the working body can be made of various materials, such as: silicone, plastic, rubber, artificial suede, natural or artificial bristles, sea sponge, polymer materials, etc.

In the case when a group of decorating elements is attached directly to the shank, the device is type-setting, since it is possible to regulate the number of decorating elements fixed on the shank.

Embodiments of the present invention are primarily intended for use with a power tool, however, it should be noted that the present invention can be used with a hand drill.

The description of the invention is illustrated by the following drawings:

FIG. 1 - General view of a device for decorating a surface with a working body, consisting of one decorative element in the form of a silicone bowl (variant] of the implementation of the device).

FIG. 1a-c show various forms of decorating elements of the device shown in FIG. 1, fig. 2.

FIG. 2 - Diagram of the assembly of a surface decorating device with a working body, consisting of several decorating elements in the form of silicone bowls, typesetting (increased rigidity) (embodiment 2 of the device).

FIG. 3 - Diagram of the assembly of a surface decorating device with a working body consisting of several decorating elements made of artificial suede napkins, type-setting (embodiment 3 of the device).

FIG. 3a shows a possible variant of the shape of one decorating element - a napkin made of artificial suede,

Figure 3b shows a general view of the working body, consisting of several suede napkins, assembled.

FIG. 4 - General view of a decorating device with plastic rigid tips (embodiment 4 of the device).

FIG. 4a shows an embodiment of the base of the device shown in FIG. four.

FIG. 5 - General view of the device, the working body of which is a sleeve, on the outer side of which several ribbon-shaped decorating bodies are fixed (embodiment 5 of the device).

Brief description of structural elements:

1 - shank;

2 - decorative element;

3 - base;

4 - washer;

5 - nut;

6 - clamp;

7 - bushing.

Although the following description, made with reference to the above drawings, illustrates some specific embodiments of the present invention, it is obvious that the invention is not limited to said specific embodiments, on the contrary, the individual embodiments described below clarify various aspects of the present invention, the scope and purpose of which are defined. in the claims.

IMPLEMENTATION OF THE STATED DECISION:

The claimed device for decorating surfaces contains a shank 1 designed to be fixed in the clamping mechanism of a tool that allows rotation around the axis of the shank, for example, in the device of a drill chuck and other electromechanical drive (not shown in the drawing), with a working body attached to the other end of the shank 1. The working body consists of decorative elements, and in some cases from the base 3 with decorative elements 2 fixed on it. The shank 1 can be connected to the working body directly or through the base 3.

In all embodiments of the invention (device), the shape of the cross-sectional profile of the shank can be circular or n-sided. The shank can have a fixing head at one end, which prevents the working body or base from sliding off during operation. Also, bolts, screws, shafts, pins, etc. can be used as a shank.

In all embodiments of the invention, the working body can be fixed on the shank in any way that provides reliable fastening, preventing slipping and twisting during rotation, for example, using a nut-screw connection through washers, using clamps, couplings, welding, soldering, gluing, pressing, riveting, mechanical fasteners, etc.

Embodiment 1 of the device (Fig. 1).

The surface decorating device according to FIG. 1, containing a shank], which is a shaft of circular or n-sided section, one end of which is configured to be connected to an electromechanical drive (not shown in the drawing), providing rotational movement, at the other end of which a working body is fixed, which is one decorating element 2 in the form of a silicone bowl with smooth, wavy or jagged edges (Fig. 1a-c), in the center of the base of which a hole is made, intended for fastening to the shank in any way that ensures reliable fastening and prevents the working body from turning during rotation. Thus, in FIG. 1 as the best option for fixing the decorating element 2 of the working body on the shank 1, a threaded connection with a nut 5 through two washers 4 is shown.

The decorative element of the elastic cup type can be of various shapes, sizes, configurations and rigidity, and can also be attached directly to the shank or made with the shank as a whole.

Each of FIG. 1a-c represent a different embodiment of the device described above. In particular, these embodiments differ from each other in the shape of the decoration element.

Option 2 implementation of the device (Fig. 2).

The surface decorating device according to FIG. 2, containing a shank 1, which is a shaft of circular or n-sided section, one end of which is configured to be connected to an electromechanical drive (not shown in the drawing), providing rotary movement, at the other end of which a working body is fixed, which is more than one decorating element 2 in the form of a silicone bowl with smooth, wavy or jagged edges (Fig. 1a-c), nested one into the other, in the center of the base of each of which a hole is made, intended for fastening to the shank in any way that ensures reliable fastening and prevents the worker from turning organ during rotation. Thus, in FIG. 2 as a possible option for fixing the working element on the shank 1, a threaded connection is shown using two washers 4 and a nut 5.

The device is type-setting, i.e. the number of decorating elements of the working body varies. An increase in the number of decorating elements allows to increase the rigidity of the working body.

As in Embodiment 1, the elastic cup-type decorating element can be of various shapes, sizes, configurations and rigidity, and can also be attached directly to the shank or made with the shank as a whole. Each of FIG. 1a-c represent a different embodiment of the device described above. In particular, these embodiments differ from each other in the shape of the decoration element. Also, the device according to option 2 can be made collapsible, with removable decorative elements (Fig. 2), typesetting, depending on the tasks to be solved.

Embodiment 3 of the device (Fig. 3).

The surface decorating device according to FIG. 3, containing a shank 1, which is a shaft of circular or n-sided section, one end of which is configured to be connected to an electromechanical drive (not shown in the drawing), providing rotary motion, at the other end of which a working member is fixed, which is at least one a decorating element 2 made of one or more suede napkins with smooth, wavy or jagged edges (Fig.3a), nested one into the other, in the center of the base of each of which there is a hole designed to be attached to the shank in any way that ensures reliable fastening, and preventing the working body from turning during rotation. Thus, in FIG. 3 as a possible option for fixing the working element 2 on the shank 1, a threaded connection is shown using two washers 4 and a nut 5. The napkins are pressed against the axis of rotation and tightened with plastic (mainly) clamps 6 to avoid scrolling and giving the working element the desired configuration.

The device is type-setting, i.e. the number of decorating elements 2 of the working body varies. An increase in the number of decorating elements allows to increase the rigidity of the working body. Decorating element 2 - a suede napkin can have various shapes, sizes, configurations and rigidity. FIG. 3b shows a working body made of decorative elements, the shape of which is shown in FIG. 3a.

As in option 2, the device according to option 3 can be made collapsible, with removable decorative elements (Fig. 3), typesetting, depending on the tasks to be solved.

Embodiment 4 of the device (Fig. 4).

The surface decorating device according to FIG. 4, containing a shank 1, which is a shaft of circular or n-sided cross-section, one end of which is configured to be connected to an electromechanical drive (not shown in the drawing), providing rotary movement, at the other end of which a working body is fixed, including a sleeve 7, from one the end of which the base 3 is soldered, with holes made in it along the edge of the perimeter, on the other side of which washer 4 is soldered - the place of attachment of the working body. Decorating elements 2 are made of rigid plastic tubes of the same length, the free ends of which are threaded through the holes in the base 3 and are attached to the base 3 by soldering in this way? that the free ends of the tubes form a circle about the axis of rotation.

The base 3, intended for fixing the position of the decorating elements 2 relative to the axis of rotation, in various special cases of the invention can be made of any geometric shape, while the holes in the base 3 can be located arbitrarily or can be absent. Decorating elements 2 can be either threaded into the holes in the base or soldered to its outer part along the perimeter.

The working member can be fixed on the shank 1, as shown in FIG. 4. by means of two washers 4 and a nut 5, or by means of a threaded hole made in the bushing corresponding to the thread at the end of the shank (threaded stud).

Embodiment 5 of the device (Fig. 5).

A device for decorating a surface in accordance with option 5, containing a shank 1, which is a shaft of circular or n-sided section, one end of which is configured to be connected to an electromechanical drive (not shown in the drawing), providing rotational movement, at the other end of which a worker is fixed organ, which is a sleeve 3, on the outer surface of which with the help of at least one clamp-tie 6 is fixed at least one decorating element 2, which is a product made of silicone, similar in configuration to grass stalks.

Decorating elements can be fixed along the entire circumference of the base bushing 3 with plastic clamps 6.

The principle of operation of the device (decoration) in any embodiment includes the following sequence of actions:

1) The free end of the shank 1 of the device is fixed in the clamping mechanism of a drill or any other device that provides torque (not shown in the drawings).

2) A decorative material is applied to the surface to be treated.

3) A tool is included, in the clamping mechanism of which a decorating device is fixed in any embodiment thereof, which rotates the working body of the device.

4) Decorating elements 2 of the working body of the invention are brought into contact with the treated surface, forming a texture and pattern.

The decorative effect is achieved when the rotating decorating device touches the surface to be treated and further moves along the surface, changes the contact angle, as well as the speed and direction of rotation.

Types of decorative material suitable for use with the invention:

1. Water-based paints, water-based paints;

2. Alkyd paints:

3. Decorative paints with fillers (granules, pigments, mica, sand, etc.);

4. Decorative semi-covering paints (glazing compositions);

5. Acrylic enamels (including those with fillers);

6. Decorative plaster based on acrylic resins (including with fillers (fibers, sand, crushed marble, granules, etc.);

7. Decorative plaster based on hydrated lime (including with fillers);

8. Decorative plaster based on polymeric materials (including with fillers);

9. Decorative plaster on a silicone base, silicate-silicone base, siloxane base;

10. Microcement, micro concrete;

11. Impregnation;

12. Varnishes;

13. Enamels;

14. Building mixtures;

15. Finishing mixtures.

16. Mastics;

17. Artistic paints, etc.

Embodiments of the invention are illustrated by the following examples, but are not limited to them.

To demonstrate the implementation of the invention and the decorative effects created by them, eight (variants) of devices with different working bodies (tips) were taken, which were tested on four types of decorative materials. Each version of the device created a decorative effect on each decorative material and a sample with dimensions of 350 × 500 mm was made.

Example 1. A device for decorating surfaces with one silicone bowl (Fig. 1). The device consists of a shank, the role of which in a particular embodiment is played by an M6-100 bolt. On the side of the bolt head, a working body (decorating element) is fixed, which is one elastic silicone bowl with a 6 mm diameter hole made in the center of the base, designed to be attached to the shank. In cross-section, the base and top of the bowl have the shape of a five-pointed star. The perimeter line of the base and top of the bowl has a wavy configuration. The working body is pressed against the bolt head with an M6 nut through two A6 washers.

Example 2. A device for decorating surfaces with several silicone bowls, typesetting (Fig. 2). Has the same assembly principle as the device in FIG. 1. As a working body (decorating element) in a particular embodiment, five elastic silicone bowls of the same standard size fixed to each other are used, which makes the structure more rigid and the decorative effect more stable.

Example 3. A device for decorating surfaces with rigid tips (Fig. 4). The device consists of a shank, the role of which in a particular embodiment is played by an M6-100 bolt. On the side of the bolt head, a base is fixed in the form of a plastic sleeve 20 mm long with an outer diameter of 10 mm. A 58 mm diameter plastic fixing washer with eight 8 mm holes located along the edge of the circumference is soldered from one end of the sleeve; a 28 mm diameter plastic washer is soldered on the other side of the sleeve - the place where the decorating elements are attached. As decoration elements, 24 plastic rigid tubes with a diameter of 2 mm and a length of 180 mm are used, which are soldered to the base in such a way that the free ends of the tubes pass through eight holes of the fixing washer (3 tubes per hole) forming a circle, thereby , fixing its position relative to the axis of rotation. The tubes are soldered to the base washer (28 mm in diameter) evenly around the circumference. The base is fixed to the shank with two A6 washers and an M6 nut.

Example 4. A device with artificial suede napkins, typesetting (Fig. 3). The device consists of a shank, the role of which in a particular embodiment is played by an M6-100 bolt. On the side of the bolt head, a working body (decorating element) is fixed, which is five square-shaped napkins arranged one after another, 260 × 260 mm in size made of artificial suede with a 6 mm diameter hole made in the center of each napkin, designed to be attached to the shank. The working body is pressed against the bolt head with an M6 nut through two A6 washers. The first three napkins, located closer to the bolt head, are pressed against the axis of rotation and tightened with two plastic clamps closer to the bolt head.

Example 5. A device with a tip "Silicone grass" (Fig. 5). The device consists of a shank, the role of which in a particular embodiment is played by an M6-100 bolt. A cork bark sleeve with an outer diameter of 28 mm, an inner diameter of 6 mm and a length of 42 mm is put on the bolt, and is fixed with two A6 washers and an M6 nut. Silicone products are attached to this sleeve along a circumference parallel to the axis of rotation - 7 bundles of 11 stems 250 mm long, up to 5 mm wide, and up to 1 mm thick. gradually tapering towards the top. These stems are attached to the hub with three plastic clips.

The four decorative materials used to test various embodiments of the invention were: 1) Decorative pearlescent paint; 2) Decorative plaster based on acrylic resins, 3) Decorative plaster based on hydrated lime, 4) Decorative paint based on acrylic resins with filler (granules 0.7 mm)

1. Thin-layer mother-of-pearl paint, a vapor-permeable coating, which, thanks to a formula based on resins in an aqueous dispersion and special metal pigments, allows you to obtain decorative effects (the optical effect of a velvety fabric).

Application technology. Prepare the base by applying two layers of water-dispersion paint with a medium-bristle roller, tinted to match the finish pearlescent coating. After drying, apply the first layer of pearlescent paint with random strokes with a medium-sized stainless steel trowel (200x80 mm trowel) so that the entire surface is covered with paint. Before the paint dries, re-treat the surface with a leveling trowel. After drying, apply a second layer in the same way, but without waiting for drying, treat the surface with the claimed decorating device in any of its embodiments. Before the paint dries, smooth the surface with a trowel.

2. Decorative plaster for interior work based on acrylic resins in water dispersion and special fillers. The decorative effect is achieved due to the difference in the height of the texture.

Application technology. Prepare the base by applying an adhesive primer to improve the adhesion of the decorative plaster to the surface to be decorated (roller, brush). After drying, apply decorative plaster with random strokes with a medium-sized stainless steel trowel (200 × 80 mm trowel). Without waiting for drying, treat the surface with the claimed decorating device in any embodiment and slightly smooth the protruding parts of the texture with a two-blade plastic spatula. After the material has completely dried, paint the surface with a decorative paint with a silk effect.

3. Decorative plaster based on hydrated lime. It contains small granules of 0.3 mm. Provides a decorative marbled effect. The decorative effect is achieved due to the difference in the height of the texture, as well as due to the ability to gloss, that is, the ability to polish to a mirror shine with repeated smoothing with a metal trowel.

Application technology. Prepare the base by applying an adhesive primer to improve the adhesion of the decorative plaster to the surface to be decorated (roller, brush). After drying, apply the first layer of decorative plaster with random strokes “one grain” thick with a medium-sized stainless steel trowel (200x80 mm trowel) so that the entire surface is covered with plaster. After drying, apply a second layer in the same way, but without waiting for drying, treat the surface with the claimed decorating device in any of its embodiments. As the material dries, the surface must be periodically polished, that is, compacted by repeated smoothing with a metal trowel. After complete drying of the material, paint the surface with a semi-opaque decorative siloxane paint to give the surface a decorative veiling effect.

4. Decorative paint with a filler of selected granulometry (max 0.7 mm) based on acrylic resins in a water dispersion. The decorative effect is achieved due to the creation of irregular texture of the "antique" decor on the surface, as well as the possibility of using it as a preparatory material for creating exceptional decorative finishes.

Application technology. Prepare the base by applying an adhesive primer to improve the adhesion of the decorative plaster to the surface to be decorated (roller, brush). After drying, apply one layer of decorative paint with filler diluted by 10-15% with drinking water using a brush made of natural bristles, crossing the strokes). Without waiting for drying, treat the surface with the claimed decorating device in any of its embodiments. After complete drying of the material, paint the surface with a semi-opaque decorative pearlescent paint to give the surface a decorative effect.

Thus, by changing the number of decorative elements of the working body of the device, as well as by combining various forms and materials of the decorative elements, an infinite variety of decorative effects can be obtained.

Although various embodiments of the present invention have been shown, it is readily understood that one with ordinary knowledge in the art will be able to suggest other modifications, substitutions and alternatives without departing from the spirit or scope of the invention as defined by the appended claims.

Thus, the proposed device for decorating surfaces expands the arsenal of available means for decorating surfaces, increases productivity and production rate by making the device removable, with the ability to connect an electromechanical drive to rotate the working body, allows you to create fundamentally new patterns and decorative effects due to a variety of options The proposed device also allows you to decorate various forms of surfaces, including radius due to the flexibility and mobility of the decorating elements of the working body.

Claims (9)

1. A rotary tool for decorating a surface with a volumetric-deformable plastic material, including a shank, which is a shaft, at one end of which a working body is fixed, and the free end of the shank is made with the possibility of fixing in the clamping mechanism of a tool that provides rotary movement around the axis of the shank, which is characterized by that the working body is at least one decorative element made in the form of an elastic bowl. 2. A rotary tool for decorating a surface with a volumetric deformable plastic material, including a shank, which is a shaft, at one end of which a working body is fixed, and the free end of the shank is made with the possibility of fixing in the clamping mechanism of a tool that provides rotary movement around the axis of the shank, which is characterized by that the working body is at least one decorating element made in the form of at least one suede napkin, in the center of each of which an opening is made for fastening to the shank, the napkins are pressed against the axis of rotation and tightened by at least one clamp - screed. 3. A rotary tool for decorating a surface with a volumetric deformable plastic material, including a shank, which is a shaft, at one end of which a working body is fixed, the free end of the shank is configured to be fixed in the clamping mechanism of a tool that provides rotary movement around the axis of the shank, characterized in that that the working body consists of a sleeve to one end of which a base is permanently attached, designed to fix the constant position of the decorating elements, and a washer is permanently attached to the other end, designed to be connected to the shank, while decorating elements made of plastic tubes of the same length, one end are permanently attached to the washer, and are attached to the base by the side surfaces. 4. A rotary instrument for decorating a surface according to claim 3, characterized in that holes are made along the edge of the perimeter of the base through which the free ends of the decorating elements are threaded, while at the points of contact with the base the decorating elements are permanently attached. 5. A rotary tool for decorating the surface with a volumetric deformable plastic material, including a shank, which is a shaft, at one end of which a working body is fixed, the free end of the shank is configured to be fixed in the clamping mechanism of a tool that provides rotary movement around the axis of the shank, characterized in that the working body is a sleeve put on the shank, on the outer surface of which, with the help of at least one clamp-tie parallel to the axis of rotation, at least one decorative element in the form of a stem 250 mm long, up to 5 mm wide, up to 1 mm thick is fixed, Smoothly tapering towards the top, made of silicone. 6. Rotary instrument for surface decoration according to any one of paragraphs. 1-5, characterized in that at the end of the shank, on which the working body is fixed, a head is additionally made to prevent the working body from sliding off. 7. A method for decorating a surface with a volumetric deformable plastic material, comprising applying a decorative material to the surface to be treated, characterized in that before the decorative material dries, the surface is brought into contact with the decorating elements of a rotating rotary tool according to any one of claims. 1-6, moving it along the surface, forming a texture and pattern. 8. The method according to claim 7, characterized in that at least one layer of primer is pre-applied to the surface to be treated. 9. The method according to claim 7, characterized in that after surface treatment with a rotary tool, as the decorative material dries, the surface is smoothed with a spatula or trowel.

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