PLASTERERS ACID is used to treat plaster prior to painting. The phosphoric acid reacts with the surface plaster, dissolving the loose surface layer and the subsequent solution is absorbed back into the wall leaving a firm surface ready for painting when dry.
Apply the product has received with roller or paint brush and allow the product to stand for 10 minutes before rinse off with clean water. Allow the plaster to dry below 16% moisture content before painting.
Refer Label, TDS or SDS