1, hard and high, high melting point. 2, lower heat distortion temperature (100 ℃), low transparency, low gloss, low rigidity. 3, high impact strength, PP intensity with increasing ethylene content increases. 4, the surface characteristics of a good stiffness and resistance to scratches, PP board with glass fiber, additives or methods thermoplastic rubber metal modified PP, turnover MFR range of 1 ~ 40, PP material impact properties of relatively low MFR good but the extension of lower intensity. Thus, in general PP board environmental stress cracking problem does not exist. 5, PP plate contraction rate is very high. PP board because it is semi-crystalline materials, the shrinkage rate is generally 1.8 to 2.5%. And shrinkage direction uniformity than PE-HD material is much better. 6, with excellent resistance to moisture absorption, resistance to acid corrosion, anti-solubility.