Mortar for travertine-type coating and application method on surfaces.

Description

1 / 11 “TRAVERTINE STONE TYPE COATING COMPOUND AND APPLICATION METHOD ON SURFACES”

[001] This descriptive report refers to the patent application for an invention for a surface coating compound, which provides an application method, both developed in such a way that the final decorative project achieves a natural effect and realistic visual appearance of Travertine stone. Technical comments

[002] Travertine stone is a natural sedimentary stone widely used in construction and interior design due to its beauty and durability. It is formed from the deposition and compaction of other decomposed rocks, organic or mineral remains that accumulate in layers over time. The rock is cut into slabs or tiles that are installed with the aid of mortar or cement, receiving a polished finish to achieve shiny and smooth surfaces or satin finishes, which are more matte and have a smooth texture, as well as rustic and brushed finishes.

[003] Due to cost issues, rock has been replaced by various materials that seek to reproduce its appearance and aesthetic qualities, ranging from porcelain, laminate, artificial or composite marble (quartzite or quartz), polished cement or concrete, resin or epoxy coating, laminated MDF or MDP panels, wallpaper, reconstituted or simulated stones.

[004] The inventor of the matter to be described further on is the applicant for patent application BR 10 2024 007299 5 for a “COATING KIT AND APPLICATION METHOD FOR DECORATIVE FINISH OF THE TRAVERTINE STONE TYPE ON A SURFACE” whereby, using two types of polymeric compounds - as a base compound and as a finishing compound, Petition 870250011579, dated 12 / 02 / 2025, page 9 / 37 2 / 11 following specific application steps achieves a satisfactory result for the visual aspect of Travertine stone. Despite the high functionality of this method, achieving a visual effect with total similarity to Travertine stone, due to the use of two polymeric masses, the second mass or finishing mass employed obviously incurs costs, in addition to requiring more steps in the polishing stage. Purpose of the request

[005] For the method now developed, the same inventor eliminates the finishing compound in the polymeric material used, thanks to a technical improvement in the base compound of the coating. Thus, only the base compound or single compound is used, bringing a series of important benefits to be explained both in relation to costs, which are reduced by using less material and with less time spent by reducing polishing steps during application, while maintaining the same final result, which is the closeness and total realism in relation to the natural surface of Travertine stone.

[006] Through the application of the polymer base mass and the method created, a surprising result is achieved that is only found in nature. The coating applied from the present invention results in a unique surface that harmonizes with the environment, giving it sophistication and timelessness. Because it is a coating, it can be applied using this method to interior and exterior walls such as facades, ceilings, countertops, furniture, joinery, interior nautical cladding, and various decorative objects.

[007] Its application is simple and offers excellent cost-benefit, and can be quickly replicated by professionals using hand tools such as a paint roller or a trowel. Petition 870250011579, dated 12 / 02 / 2025, page 10 / 37 3 / 11 and a groove trowel or texture roller or any tool that creates grooves in the surface being coated.

[008] Additionally, for a better finish, spatulas and two power tools are used, such as a roto orbital sander with 100 grit sandpaper for roughing and leveling the surface, and then for polishing a high-speed polisher with 600 grit sandpaper, which will define the type of finish - from matte to satin.

[009] Power tools such as the rotary orbital sander with 100 grit sandpaper for roughing and leveling the surface and the high-speed polisher with 600 grit sandpaper will define the type of finish - from matte to satin.

[010] The desired result can be achieved on various types of substrates such as plaster, wood, concrete, metal and glass. Ideally, a primer should be applied before applying the filler to remove stains from the surface and properly prepare it for the coating to adhere.

[011] Depending on the particulars of the application of the method (texturing and pigmentation), different nuances of the various types of Travertine stone can be achieved, such as Roman, Persian, Navona, Classical, Tuscan Travertine, among others, as well as the intensity of the shine in the finish in each type.

[012] The single-layer body is available in two colors: "off-white" and natural with beige tones and natural with white tones. The desired color can be achieved by adding pigmentation at the user's discretion, for a Travertine-style finish. Colors such as black, gray, etc., can also be manufactured. This allows a professional applying the coating to meet the demands of architects and / or designers, who can then innovate and achieve unique or specific finishes for their Travertine decoration projects. Petition 870250011579, dated 12 / 02 / 2025, page 11 / 37 4 / 11 employees.

[013] The finish on this base mass can have its characteristics determined by the technique that each professional develops, such as the tool chosen to apply the texture.

[014] Explained in summary form so far, the invention will now be detailed.

[015] Figures 1 and 2 show the state of the art, i.e., photos of Travertine stone, evidently the objectives of the invention to be achieved through this base mass and its method of application: Figure 1 - shows the photograph delimited by a spherical frame; Figure 2 - shows the photograph enclosed by a square frame. The following figures illustrate the method in question, which is the subject of this patent application: Figure 3 - illustrates 3 sizes of buckets for the base coating compound; Figure 4 - shows the beginning of the method with the application of primer followed by a drying step; Figure 5 - shows the first coat of filler and its detail A; Figure 6 - shows the second coat of filler, followed by the drying stage; Figure 7 shows the possibilities for the professional to create texture patterns themselves or work according to a decoration project. This figure shows the passage of a texturing roller over the mass; Figure 8 - shows, as in the previous figure, the passage of a multi-purpose brush creating another texture pattern; Petition 870250011579, dated 12 / 02 / 2025, page 12 / 37 5 / 11 Figure 9 - shows, as in the previous figure, the passage of a groove trowel creating another texture pattern; Figure 10 - shows the dough, now with a different texture pattern, resting in a touch-drying stage; Figure 11 - shows the stage of smoothing the already textured mass, progressively creating, with the trowel, a smooth surface, but mixed with small cavities forming a negative and positive surface; Figure 12 - shows the result of the finishing stage with the cured mass, presenting a smooth surface, but mixed with a negative and positive texture pattern, similar to the patterns of the natural appearance of the stone; Figure 13 - shows the spatula standing at a 90-degree angle, used to create natural veins in a smooth, but blended negative and positive pattern, similar to the patterns of the natural appearance of the stone. Figure 14 - shows the veins made by the spatula; Figure 15 - shows the process of using a trowel to remove excess mortar; Figure 16 shows that, after drying to the touch, the next step is sanding the surface of the coating; Figure 17 - shows the coating polishing stage; Figure 18 - shows the optional application of a plastering tool to apply the mortar to the surface of facades and large areas; Figure 19 - photograph showing the final result of the application. Petition 870250011579, dated 12 / 02 / 2025, page 13 / 37 6 / 11 of the coating through the base mass and its method, where the surface exposes a decorative visual appearance identical / similar, real, to that of Travertine stone. The stone is superimposed in detail A on the coating for comparison with the effect obtained of a visually natural mixed surface, in addition to presenting a tactile aspect, shine and coloration; Figure 20 - shows a type of "off-white" coating color achieved; Figure 21 - shows a type of natural color for the coating achieved; Figure 22 - shows a type of ribbed design for the cladding achieved; Figure 23 - shows a type of layered design for the coating achieved; Figure 24 - shows a type of design with the addition of mica for the coating achieved; Figure 25 - shows a type of brick-style design for the cladding achieved; Figure 26 - shows a type of "french pattern" design for the coating achieved; Figure 27 - shows one type of coating achieved; Figure 28 - shows one type of coating achieved; Figure 29 - shows one type of coating achieved;

[016] In accordance with the attached figures, the “TRAVERTINE STONE TYPE COATING MASS AND APPLICATION METHOD” consists of a single mass (1), of general composition Petition 870250011579, dated 12 / 02 / 2025, page 14 / 37 7 / 11 polymeric and preferably packaged in buckets in three sizes, shown in figure 3.

[017] This putty (1) contains water-based compounds made up of synthetic and / or natural chemical materials such as polymer binders, mineral fillers and chemical additives. Its polymer binders, commonly known as resins, are made up of crosslinkable monomers that give it adhesion, resilience and solidity so as to bind its other components after its complete polymerization when applied to the surface to be coated. The mineral fillers extracted from nature are ground in their natural form or chemically modified, giving covering, resistance and finishing properties. The chemical additives used to improve both its stored form and its applicability are devoid of pigments in the composition so that this putty does not fade.

[018] From this general definition it will be noted that the decorative effect of the coating is fundamentally based on the method of application of this base mass, which may present variations in its composition as long as its nature, being polymer-based, is respected. The Method:

[019] As shown in figure 4, in a first step the surface (S) to be coated, being clean, receives the application of primer (Pr) by a paint roller (Ro), with a drying time of around 4 hours. The surface to be coated is shown in this figure 4 only by a brief section of darker coloration under the primer (Pr) before being coated. As can be seen, it is indicated by item (S).

[020] The drying stage follows, with a waiting time of around 4 hours.

[021] As shown in figure 5 and its detail A, in the second stage a Petition 870250011579, dated 12 / 02 / 2025, page 15 / 37 8 / 11 mass (1) (which can be pre-homogenized if necessary), in its first coat is applied in the form of a thin, not very thick layer, only lightly scraped with a trowel (De) so as to be impregnated together with the primer (Ro), creating an anchoring base (A) for the future texture stage of the coating.

[022] The drying stage follows, with a waiting time of around 4 hours.

[023] As shown in figure 6, in the second stage of the method, the second coat of putty (1) is applied over the anchoring base (A) (which, likewise, can be previously homogenized if necessary), being spread by the trowel (De) in a uniform manner, removing excess.

[024] The third stage is texturing, when, while the mass (1) is still soft, it receives various texture patterns (T). Texturing is done using the textured roller (RoT) with the texture (T) previously engraved as shown in figure 7, transferring this engraving to a groove in the base mass (1). Tools such as the multi-purpose brush (Em) shown in figure 8 are also used to create a texture pattern (T), or another trowel such as the groove trowel (DsR) shown in figure 9 for another texture pattern (T), once the base mass (1) is a little drier. When moved vertically or horizontally, the multi-purpose brush (Em) and the groove trowel (DeR) form the irregular and natural patterns of the veins, with their nuances, which will contribute to achieving specific Travertine pattern types such as Roman, Navona, Persian, etc.

[025] In this condition, the base mass (1) shown in figure 10 also with another texture pattern (T) goes through a touch-dry stage which may vary in waiting time depending on each type of application or Petition 870250011579, dated 12 / 02 / 2025, page 16 / 37 9 / 11 depending on the professional working on the decoration.

[026] In the fourth stage, as shown in figure 11, with the textured base mass (1) still moist, the leveling is carried out by applying the trowel (De) superficially, rubbing lightly to check the consistency and, if it is too soft, still sticking to the tool, wait until the base mass (1) reaches the ideal leveling point without undue adhesion to the trowel (De).

[027] In this way, another texture pattern (T2) is created with a smooth surface, but with small cavities (C) mixed with positive areas, as shown in Figure 12, forming the definition of the nuances to achieve Travertine pattern types. Depending on the finishing technique - pressure force, force along with repetitions of these movements using the trowel (De) - the texture pattern (T2) can become smoother and more compact, closing the cavities (C) more or less in the middle of the positive areas. If the finishing is excessive, the texture (T2) can be moistened using a sprayer for use with the multi-purpose brush (Em) or the groove trowel (DeR), more aggressively increasing the visual impact of this negative and positive pattern.

[028] With the base mass (1) and its texture (T2) smoothed and dry, as shown in figure 13, the spatula (Es), when positioned upright at a 90-degree angle and dragged with little pressure and force, allows the professional to create veins (V) with horizontal or vertical lines as shown in figure 14. If any volume of the mass (1) is removed, immediate corrections should be made by adjusting the texture with the removal of excess, followed by new compaction with a light pass of the trowel (De) as shown in figure 15. Petition 870250011579, dated 12 / 02 / 2025, page 17 / 37 10 / 11

[029] In a penultimate step, with the complete drying of the mass (1) in its final texture pattern (T2) follows the sanding, done using the electric tool (L) of the roto orbital sanding type or similar, with 100 grit sandpaper as shown in figure 16, for roughing and leveling the surface.

[030] Finally, the polishing stage, as shown in figure 17, is done with the electric tool (P) high-speed polisher with 600 grit sandpaper, defining the type of finish - from matte to satin, thus completing the decorative coating method, giving the treated surface the visual effect of Travertine stone in any of its variations such as Roman, Persian, Tuscan, etc.

[031] As shown in Figure 18, an optional step is provided, especially when applying the coating to facades and other large surfaces, where the mass (1) is applied with the aid of a bonding tool (Ch), either manual (crank) or automatic (air compressor), which will throw the mass (1) against the surface (S). In this case, through the bonding, following the method, with the primer (Pr) and the first thin coat, the anchoring base (A) is created, drying, application of the second coat, drying, surface smoothing with the trowel (De), textures (T), new smoothing with the trowel (De), achieving the cavity pattern (C) in the texture (T2), drying, sanding and polishing with electric tools (L) and (P).

[032] As shown in figure 19, where natural Travertine stone is superimposed as detail A on the cladding, the main technical advantages of the method are: solution for the need to use a single product with reduced material and costs, the realism of the stone, 100% Brazilian raw material, excellent cost-benefit ratio, light weight, waterproof, low soiling, low level of fading (not Petition 870250011579, dated 12 / 02 / 2025, page 18 / 37 11 / 11 (contains pigment in its formula), can be made in any size, easy to apply, replicable, teachable, renewable, pigmentable, seamless, exclusive, luxurious, accessible logistics and sustainable.

[033] The yield is up to one square meter per kg depending on the surface. To work safely (considering a smooth and cohesive surface) the ideal would be for every m2 / 0.7 (margin) = kg required. Petition 870250011579, dated 12 / 02 / 2025, page 19 / 37

Claims

1 / 3 CLAIMS 1 - “BASE MASS FOR TRAVERTINE STONE TYPE COATING”, being a mass (1) of general polymeric composition and preferably packaged in buckets in three sizes, containing water-based compounds consisting of synthetic and / or natural chemical materials such as polymeric binders, mineral fillers, chemical additives, polymeric binders or resins consisting of crosslinkable monomers combined with mineral fillers extracted from nature and chemically modified, conferring properties of coverage, resistance and finish, said mass (1) characterized by being a single mass (1) for a surface coating method (S). 2 - “METHOD OF APPLICATION ON SURFACES”, where the single mass, defined in claim 1, avoiding the use of finishing mass, enables a coating method as follows: - application of primer (Pr) by paint roller (Ro) on the surface (S), after cleaning; - drying in about 4 hours; - first thin coat of mass (1), spread with light friction by trowel (De) forming, with the primer (Pr) an anchoring base (A); - drying in about 4 hours; - second coat of mass (1), spread and smoothed by trowel (De); - texturing with the base mass (1) still soft before total drying; - texturing by means of: - textured roller (RoT) or foam roller; - multi-purpose brush (Em); Petition 870250011579, dated 12 / 02 / 2025, page. 32 / 37 2 / 3 - groove trowel (DeR) the mass (1) being a little drier;- the mass (1), already with its texture patterns (T), still moist, receives a superficial leveling stage with the trowel (De), lightly rubbed to check consistency, dry to the touch, and if it is too moist, wait until the said mass (1), already with its texture patterns (T), reaches the ideal leveling point without sticking to the trowel (De); - when the ideal leveling point is reached, a texture pattern (T2) is formed with a smooth surface, but with small cavities (C) or negative points in the middle of the positive area of ​​the coating; - the cavities (C) close more or less in their negative pattern in the middle of the positive area of ​​the coating surface according to the force applied with the trowel (De) and the repetitions of its movements on the mass (1) already with its texture pattern (T2); - drying stage;- In case of excessive smoothing, spray the mass (1) to moisten its texture pattern (T2), for a more aggressive increase in cavities (C) in the middle of the positive area of ​​the coating surface, using the multi-purpose brush (Em) and the groove trowel (DeR); - application of the spatula (Es) to the mass (1) with its texture pattern (T2) already smoothed and almost dry, said spatula (Es) positioned upright at a 90-degree angle and dragged under light pressure to create horizontal or vertical veins (V), making immediate corrections to remove excess texture pattern (T2); - compaction by passing the trowel (De) with light pressure. Petition 870250011579, dated 12 / 02 / 2025, page 33 / 37; 3 / 3 application of force; - after complete drying, sanding is followed by an electric tool (L) of the roto-orbital sanding type or similar, with 100 grit sandpaper, roughing and leveling the surface (S); - polishing with an electric tool (P) high-speed polisher with 600 grit sandpaper to define the type of finish - from matte to satin for the surface (S) thus finished. 3 - “METHOD OF APPLICATION ON SURFACES”, according to claims 1 and 2, characterized by, optionally, before the second coat on the surface (S), the mass (1) receiving pigmentation, for alternative coloring for the coating. 4 - “METHOD OF APPLICATION ON SURFACES”, according to claims 1 and 2, in the case of application of the coating on facades and other large surfaces, characterized by optionally, the mass (1) being applied against the surface (S) by means of a bonding tool (Fe), manually or automatically, to create an irregular and random texture pattern, maintaining the steps of primer application (Pr), drying for approximately 4 hours, texturing, surface smoothing, touch-drying, smoothing to achieve the texture (T2) of a smooth surface, but with small cavities (C) or negative points amidst the positive area of ​​the coating; drying step, spraying on the mass (1) aggressive increase of the cavities (C), application of the spatula (Es), compaction and complete drying, sanding (L) and polishing (P). Petition 870250011579, dated 12 / 02 / 2025, pp. 34 / 37

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