... : 100Water: 452,Specification:These products are 40-50 mesh reddish-gray and white powder,there will be 15 ... left when pass 100g such powders through a 100-mesh sieve. These products are used on surface of ... when the coating is chipped off.Fineness: 30 mesh, there will be 15-20g residue by sieving ... in proportion of 100/40; Push them through a 80-mesh sieve and keep the consistency at 165~170g/100ml, ...