Composition of the mineral varnish finishes
1. Primer
Primer is the innermost, whose role is to enhance the waterproof performance of substrate surface to prevent substrate moisture migration caused by phenomena such as efflorescence, and floating, reinforced with intermediate coat paint adhesion between the layers. Primer is divided into water and oil two categories, waterborne Primer by special offing particle size polystyrene acrylic emulsion and acrylic latex additive, water composition; Oil primer consists of acrylic resin, mixed with hardener and thinner for epoxy resin composition.
2. Intermediate coat paint
Intermediate coat paint is the main mineral varnish finish, composed by emulsion, aggregates, additives and water. Role in bonding and curing of the emulsion, which directly affect the performance of real stone paint type and hardness, General requirements for room temperature curing, good weather resistance and yellowing, resistant to stains, paint spray with water, such as white, acrylic or silicone-acrylic emulsion or fluoride resin emulsion. Outside of texture and color, aggregate, and block UV rays, anti-aging effect. Aggregate available natural detritus, ceramic particles, colored sand, colored glass pieces, usually with different size sand mix as the main material. Additives main membrane additives, anti-freezing agent, thickening agent, deforming agent, bactericide.
3. Cover painting
Paint overlay is the outermost layer of the mineral varnish finishes, its role is to improve the real stone paint gloss, durability and stain resistance. It is also divided into water and oil two types, oily surface paint generally consists of thermoplastic acrylic resins or silicone-modified acrylic resin and solvent composition; Water covers painted by acrylic or silicone-acrylic emulsion, additives and water.