... and remains flameless at 1, 200C 2) Waterproof: Doesn't swell or deform in water 3) Volume weight: 0.85 - 1 ... A fire-resistant capacity2) Easy to absorb water, easy to swell and deform in wet condition2) Expansion coefficient is above 8 ... is 35%2) With good moisture resistant performance, doesn’t swell or deform in wet condition3) The board is rigid, can ...