The ratio of new plaster The old plaster that can be used as much as possible is 60: 40. by mixing a suitable amount of water is 41.5 ml. .That would make the cement mixer has a viscosity similar to the new plaster and curing time 39 minutes. .
a ratio of the new plaster plaster the old can be used most is 60:40. by mixing the appropriate amount of water Ajarn ml. This will make the cement mixed with a viscosity similar to plaster and can be firm in 39 minutes