A growing number of people are choosing polymer plasters for wall finishes because of their adaptability and longevity. These contemporary materials provide increased flexibility over traditional plaster, which makes them appropriate for a variety of applications. Polymer plasters can help you achieve the desired result, whether you’re going for a textured look or a smooth, sleek finish.
The inability of polymer plasters to crack, even in locations subject to movement or temperature fluctuations, is one of their main advantages. They are therefore a great choice for walls on the inside as well as the outside. Additionally, because of their increased moisture resistance, they can be used in moist areas like kitchens and bathrooms without fear of deterioration.
In this piece, we will examine the
What are polymer plasters
Binder, filler, and additives that enhance the coating’s technical properties are all included in polymer plasters. Making the solution on the construction site will not be feasible due to the difficult maintenance of composition and proportions. Additionally, some binders are only suitable for preparation in liquid form; there are no water-soluble powders based on them.
There are various varieties of polymer plasters based on the primary ingredient:
- acrylic;
- silicone;
- silicate;
- silicate-silicone (siloxane).
Frequently, the decorative solution’s composition already includes a filler—crushed rock, quartz, granite, marble, etc.—that gives the finish a texture. There are various fractions of these particles, ranging from 0.5 to 5 mm. Granules can be big inclusions or all the same, depending on the desired look.
This will also determine how much of the solution is consumed: the decorative layer’s thickness will match the size of the mineral grain.
Polymer solutions are superior to traditional mineral plasters in a number of ways.
- High plasticity. Synthetic resins and liquid glass in the composition provide ease of application.
- Adhesion. They fit well on wooden, metal and aerated concrete surfaces.
- Fast and uniform drying. The coating applied to the surface dries completely within 12-24 hours.
- Hydrophobicity. After hardening, acrylic forms a waterproof film. The coating becomes additional protection of the wall from water.
It should be noted that nearly all prefabricated mineral plasters come with polymer additives to enhance their functionality, boost the solution’s plasticity, and lengthen the coating’s lifespan. In this article, we will not be discussing dry mixes made of cement and gypsum.
Let’s look at the characteristics of several polymer plaster varieties below.
Acrylic
In this instance, the binder is acrylic resins. Acrylic-based compositions are more common than other types because this ingredient is the foundation of all polymer plasters.
- Benefits include high adhesion to all materials, vapor permeability, protection from mold.
- The main drawback of the material – electrostatic. Dust and dirt stick to such decoration, the facade fades over time, and cleaning it with water is not so simple if the surface of the plaster has a relief. Acrylic coatings also get wet more than other polymer ones, so the outer walls of the house dry after rain longer.
Widely employed for both outdoor and interior tasks. The solution is used with a gun and by hand.
"Bark beetle" and "lamb" textures are popular. Moreover, the foundation of contemporary Venetian plasters is acrylic mixtures.
Important: The material darkens a little bit as it dries. The shades might not appear to match when applied. When applying your own tint, make little samples to gauge how much tinting paste is needed.
Ceresit CT 60, CT64, Quick-mix KHR Bark beetle, OLIMP, Farbe "Lamb" are a few brands as examples.
Silicone
Silicone resin is an additive in this finishing material that enhances the following properties:
- Silicone plaster is already devoid of such a disadvantage as high adhesion of dirt to the wall.
- Colors hold better due to increased resistance to UV rays.
- Vapor permeability also increases. Other advantages remain the same as in the previous version.
In terms of quality, silicone plaster is the best option for facade work. However, the cost is 20–30% higher than that of acrylic.
Examples include ECOROOM SILKSTONE, Perel Silicio Koroed, and Ceresit CT 74.
A comparison of two varieties of facade polymer plaster is shown in the video below.
The limited color selection of polymer decorative coatings—only pastel colors are offered—is a drawback of silicate mixtures.
Although silicate plaster is more expensive than acrylic, experts who have worked with the material believe that it is just a marketing gimmick used by manufacturers. The plaster’s performance attributes, however, are not comparable to those of silicone decorative coatings.
Ceresit CT 174 Pebble is one example.
| Type of Polymer Plaster | Features |
| Acrylic Plaster | Highly flexible, resistant to cracking, and available in a variety of colors. Suitable for both interior and exterior use. |
| Silicone Plaster | Water-repellent and very durable. Ideal for exterior walls as it prevents moisture buildup. |
| Silicate Plaster | Breathable, allowing moisture to escape from walls. Good for old buildings where dampness might be an issue. |
| Polymer-Cement Plaster | Combines the durability of cement with the flexibility of polymers. Great for high-impact areas. |
Polymer plasters provide a contemporary approach to wall finishing by fusing visual appeal and longevity. They are available in a variety of varieties, each with special qualities to suit various requirements and tastes.
Polymer plasters offer a variety of choices for those seeking flexibility, moisture resistance, or a smooth finish. Even do-it-yourself enthusiasts can use them because of their simple application.
All things considered, polymer plasters are a great option for people looking to combine style and utility in their wall treatments.
When it comes to wall finishing, polymer plasters are a flexible, resilient, and long-lasting choice. They are available in several varieties, such as silicate, acrylic, and silicone, each with special advantages like long-lasting color, ease of application, and resistance to weather. These plasters provide a smooth, long-lasting, and visually appealing finish that is perfect for both indoor and outdoor use.
