Around the world, concrete is a strong and adaptable building material. However, a variety of treatments and safeguards are frequently used to improve its functionality and longevity. Using film-forming materials to coat the concrete’s surface in a protective layer is one such method.
Applying specially formulated compounds to concrete results in the formation of a thin, continuous film known as film-forming materials. By acting as a barrier, this film protects the concrete from outside factors like water, chemicals, and UV rays. Film-forming materials aid in preserving the structural integrity and aesthetic appeal of concrete structures by keeping these substances from piercing the surface.
Film-forming materials come in a variety of forms, each intended for use in a particular situation. Certain ones are derived from acrylics, which are renowned for their longevity and ability to withstand yellowing. Others may have a silicone or polyurethane foundation and provide better flexibility and water resistance. The demands of the concrete and the environment it will be exposed to must be taken into consideration when selecting the appropriate film-forming material.
Film-forming material application is generally simple and involves techniques like rolling, brushing, or spraying. These materials create an effective and aesthetically pleasing protective film once they dry. This extra layer gives the concrete a uniform finish, which not only increases its resilience but also improves its appearance.
All things considered, adding film-forming materials to a concrete treatment plan is a great idea. They guarantee that buildings and infrastructures continue to function well over time, prolong the life of concrete structures, and lower maintenance costs. Both homeowners and builders can maximize their concrete investments by learning about and utilizing these materials.
Type of Material | Description |
Acrylics | Provide a durable, clear finish that enhances the color and appearance of concrete. |
Epoxies | Create a strong, resistant coating ideal for high-traffic areas and industrial floors. |
Polyurethanes | Offer excellent resistance to abrasion and chemicals, suitable for both indoor and outdoor use. |
Silicones | Seal concrete surfaces against water and weather while allowing moisture to escape. |
Polyesters | Used for decorative purposes, adding a glossy, protective layer to the concrete. |
Concrete film-forming materials are crucial for improving the toughness and aesthetics of concrete surfaces. Concrete structures can last longer because of these materials, which include sealers and coatings, which form a protective layer that wards off moisture, chemicals, and wear. They also enhance the aesthetic appeal by highlighting the inherent beauty of concrete with a glossy, smooth finish. Contractors can guarantee that concrete surfaces stay robust, resilient, and aesthetically pleasing for many years to come by employing film-forming materials.
- Purpose, what film-forming materials are used
- Principle of action
- Examples
- Tent
- Method of application
- Pamorol
- Method of application of compositions
- Mapecure S
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Purpose, what film-forming materials are used
High-molecular compounds known as "film-forming materials" are used to ensure that moisture is evenly distributed in fresh concrete without continuously wetting it with water during the hardening process. This has an impact on the solution’s properties following full drying as well as the quality of the solution’s hardening. Furthermore, these materials can be used in a fully automated manner, which shortens workdays and enhances output quality.
Typically, film-forming compositions consist of varnishes, tar and silicone liquids, liquid glass, and other materials that provide the appearance of a waterproof film for approximately sixty minutes after application. Using sprayers, these liquids are applied in two layers to the fresh solution’s base. A few minutes after the base has hardened, the first layer is applied, measuring 5-7 mm (the solution does not stick to the palms when water is absorbed into the matte surface).
They are separated by origin into:
- oils of vegetable origin;
- resins of natural origin;
- cellulose ethers;
- synthetic resins created by condensation;
- polymerization synthetic resins.
Principle of action
The concrete solution’s surface is coated with film-forming compounds to create a water-repellent layer. Both the solvent’s evaporation and the material’s oxidation and polymerization as a result of siccatives cause this effect. Water cannot enter or exit the surface due to the film. There are two methods for using these kinds of materials:
- pouring – with rollers, brushes or film-watering machines;
- spraying – with a spray gun, electric spray gun, etc. d.
The moment the film is applied, it starts to shield the surface from the damaging effects of the outside world, like wind, dry air, heat, etc. d. This allows the solution’s moisture content to be maintained throughout the hardening process. Fresh concrete will retain its strength better the sooner you take care of it; this is especially true of high-grade concrete, which can retain up to 40% of its original strength.
Concrete can benefit from and be negatively impacted by water. As a result, it contributes to the structure’s strength while also making it porous, allowing water from the lower layers to evaporate and rise to the surface. Film-forming mixtures are specifically used to lessen the detrimental effects of water on concrete.
Water emulsions and other hydrophilic materials satisfy this technical requirement. Hydrophobic materials form an uneven film on freshly laid concrete; therefore, before applying them, the concrete base must be moistened. Waiting for the concrete to dry is necessary.
This means that the timing of the emulsion’s application must be considered. The strength of the structure, the plasticity of shrinkage, and the material’s ability to retain water are all impacted by a film applied at the incorrect time.
Examples
Tent
The substance is applied on top of recently laid concrete. Its purpose is to control the moisture content of the hardening concrete base, resulting in a 40% increase in strength. The following locations are where the film-forming composition is used: port container zones, airport runways, road construction, and reinforced concrete engineering structures. Two categories of material exist:
- for vertical and horizontal surfaces;
- to maintain properties during frost.
Method of application
Use a sprayer or other machinery to add roughness once the surface turns matte. The film has to be manually removed in order to be removed.
Pamorol
The compositions give concrete strength, resistance to wear, and shielding from evaporation of moisture during the hardening process. Location of application: airfields, highways, bridges, etc. d.
Method of application of compositions
After stripping, apply with a roller or sprayer to the concrete base, having finished the top layer first. Use steam concrete as soon as the object is taken out of the chamber when working with it.
Mapecure S
Solvents from building solutions serve as the foundation for this composition, which forms films. produced as a liquid that is amber in color. Similar to all film-forming materials, the composition’s primary function is to shield newly laid concrete from the fast evaporation of moisture during the hardening process and to lessen the likelihood of microcracks developing when rapid moisture release occurs due to exposure to high temperatures or sunlight.
Synthetic resins in a solvent form the composition’s foundation and create a waterproof coating. The composition shields the concrete from direct sunlight, wind, and extremely hot temperatures (up to 350 C). The composition’s density at 23°C is 0.91. Additional: PM-100AM, VPM, MasterKure series materials.
Concrete surfaces are greatly enhanced and protected by film-forming materials. These coatings offer a barrier of defense against elements that can eventually deteriorate concrete, like moisture, chemicals, and UV light. These substances help to preserve the appearance and lifespan of structures by creating a continuous film on the concrete surface.
The ability of film-forming materials to seal concrete and stop the entry of hazardous materials and water is one of their main advantages. This is particularly crucial in colder regions where freeze-thaw cycles can seriously harm an area. Furthermore, by strengthening concrete’s stain resistance, these coatings can facilitate easier maintenance and preserve the pristine appearance of surfaces.
Film-forming materials come in different varieties, each with special qualities and uses. Among the most widely used materials are acrylics, epoxies, and polyurethanes, which provide varying degrees of chemical resistance, flexibility, and durability. The particular requirements of the project, such as the intended aesthetic finish and the environmental factors the concrete will encounter, must be taken into consideration when choosing the appropriate film-forming material.
It’s a wise investment to include film-forming materials in your concrete maintenance program. By lowering the frequency of repairs and replacements, they not only improve the functionality and longevity of concrete but also add to the structure’s overall sustainability. You can preserve the structural integrity of your concrete surfaces and guarantee long-lasting protection by selecting the right coating and applying it properly.