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What Is Redispersible Polymer Powder and Why Does EIFS Render Need It
Redispersible Polymer Powder, known as RDP powder with CAS number 24937-78-8, is a spray-dried vinyl acetate-ethylene copolymer that redissolves in water during mixing and forms a flexible polymer film inside hardened mortar. In EIFS base coat and finish coat render, RDP powder is the additive that prevents cracking under thermal movement and provides the bond strength required for mesh-reinforced systems on exterior insulation boards.
2026/06/16
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