Flame and weather resistance Polymethyl methacrylate is […]
Flame and weather resistance
Polymethyl methacrylate is easily burned with a limited oxygen index of only 17.3.
Polymethyl methacrylate has excellent weathering resistance. The sample has been subjected to natural aging test for 4 years. The weight change, tensile strength and light transmittance are slightly decreased, the color is slightly yellowish, and the anti-silver grain is decreased. Obviously, the impact strength is also slightly improved, and other physical properties are almost unchanged.