This Granwood block floor had extensive stains on it, caused by oil spillage which had to be sanded out. Once we had sanded the floor to the required finish 2 coats of primer was applied to seal the wooden floor, this prevented any reaction to the 2 coats of polyurethane floor seal that was then used to give the floor the finish required by the customer.

Granwood Block Floor AfterGranwood Block Floor Before