- Over 20sq/m per litre
All surfaces must be sound, suitable dry and free from anything that will interfere with the adhesion of the materials to be applied.
Remove all organic growth by scraping or brushing with a stiff bristle brush (not wire).
Heavy long established growth is best removed by pressure washing between 1500-2000psi, wet or dry grit blasting. Care must be taken to not damage the underlying surface.
Apply liberally using a synthetic bristle brush and scrub well into the surface.
Wash with clean water immediately after use.