... )sodium acetate(%≤)Volatile (%≤)Ash (%≤)PH valueHWE-1799≥99.820.0-32.07.08.03.07-10HWE-1999 ≥99.827.0-37 ... :PVA has big adhesive strength, film forming flexile, use it to replace starch and casein or use with them, conduct as coating ... , surface resistance, tear resistance, glossiness, smoothness, and suitability to print. PVA water solution can replace water-glass, starch or combined with them ...