1.appearance:light yellow transparent solution 2.the content of solid:12.5. 3.viscosity:25-75 4.PH:4-7 1. Brief introduction This product is that one kind is not formaldehyde polymer, nonpoisonous and tasteless , hydrogen ion index range is wide. Suitable for in neutral copying paper under the alkaline condition a little , to acid to copy paper to be suitable even, and it increases wet strong ...