Surface PreparationThe concrete should be clean, dry
and free from any loose material and
sufficiently porous to allow the paint
to mechanically bond to the surface.
Previously painted surfaces should be
roughened slightly.
If the concrete is new it should be
left at least 28 days and the surface
then treated with
Watco Cemtetch to
neutralise any remaining alkalinity in
the cement.
Watco Cemtetch helps to provide a key on very smooth
surfaces, removes general dirt and
helps to remove laitance (weak, dusty
cement particles) in conjunction with
harsh scrubbing.
Grease and oil should be removed with
Watco Bio D or a similar degreasant.
Application
The paint should be thoroughly stirred.
The paint should not be thinned.
Apply by roller or brush and work well
into the surface. Avoid applying the
paint too thickly.
Apply second coat as soon as the first
coat is dry (approximately 12 hours).
Ensure the paint is hard dry (not just
touch dry) before bringing the area
back into use (generally 16-36 hours).