Introduction of the classification and construction requirements of elastic coatings

Elastic coating is a synthetic resin emulsion as the base material, with pigments, fillers and additives made, applied a certain thickness (dry film≥150 m). An elastic functional coating with coverage substrate telescopic (motion) that produces fine cracks. Because the elastic exterior paint film has a high elasticity, so when cracks appear in the wall, the coating film is stretched deformation without cracking damage, still complete coating film to maintain the original various barriers, to prevent cracking of the wall directly exposed to the atmosphere.elastic coating has environmental protection and non-toxic odorless, non-radioactive non-polluting environment, simple construction suitable for long-term construction of workers and has the advantages of fire retardant. Elastic coatings are suitable for hotels, guesthouses, office buildings, entertainment and cultural venues, residences, schools, hospitals and other large buildings of cement mortar surface, gravel surface, plasterboard, wooden splints and other flat rough substrate.1, the classification of elastic coatings: 1, solvent-based elastic coatings solvent-based elastic coatings are polymer synthetic resins as the main film-forming substances, organic solvents as thinners, add a certain amount of pigments, fillers and additives, mixed, stirred dissolved, ground and made of a volatile coating. After the elastic coating is applied to the outer wall, with the evaporation of solvents contained in the coating, the film-forming substance and other non-volatile components together form a uniform continuous film, that is, the coating. Due to the tight coating film, it usually has better hardness, gloss, water resistance, acidity and alkalinity and good weather resistance, pollution resistance and so on. However, due to the construction of a large number of easily resistant organic solvent volatility, easy to pollute the environment. Paint film breathability is poor, and hydrophobic, such as in the wet grass on the construction, easy to produce skin, shedding and other phenomena.2, emulsion-type elastic coatings emulsion-type elastic coatings are mainly polymer synthetic resin emulsions as the main film-forming substances of the outer wall coating called emulsion-type external wall coatings. According to the emulsion manufacturing method can be divided into two categories: First, by the monosome through the emulsion polymerization process directly synthesized emulsion; The second is a emulsion made of polymer synthetic resin by emulsification. According to the texture of the coating can be divided into latex paint (thin emulsion coating), thick paint and colored sand wall-like paint.3, inororally polymer elastic coatings inordern polymer building elastic coatings are a large category of new architectural coatings developed. The building is widely used in alkali metal silicate and silicone sol two categories.II, elastic coating construction requirements: 1, material requirements:according to design requirements, grass-roots conditions, construction environment and season, select, purchase elastic coatings and other supporting materials.2, the main : the main machine has: 1. brushing tools: pen, brown brush, barrels, etc. 2. Spraying tools: air compressor (maximum air pressure 10MPa, exhaust chamber 0.6m3); 3. Spray, spray gun, high-pressure hose, etc. 4. Rolling tools: long plush rollers, roller rollers, print rollers, hard plastic or rubber rollers; 5. Impeachment tools: manual or electric projectiles and supporting equipment; 6. Application tools: stainless steel wipes, plastic wipes, ash plate, etc. 7. Handheld electric mixer, etc.3, operating conditions:concrete and wall mixed mortar above the ash has been completed, and after drying, its moisture content should meet the following requirements: 1, surface application of solvent-based coatings, water content shall not be greater than 8%; 2, surface application of water-based and floating liquid coating, water content shall not be greater than 10%, and determine that the wall has no empty drum phenomenon.water, electricity and equipment, top wall reservation, pre-buried parts have been completed. 1.3.3 The ambient temperature of the water-based and emulsion coating shall be controlled according to the temperature of the product description. When applying paint in the winter indoor area, it should be carried out under heating conditions, and the room temperature should be balanced and not suddenly changed., the base or the base should be removed from the angle, with 1:3 cement mortar (or polymer cement mortar) repair; Surface hemp surface and crevice application putty filling flush (external walls, kitchens, bathrooms and toilets, such as the need to use paint, should use water-resistant putty), the wall has an empty drum part, should be opened with an empty drum and cement mortar repair.
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