O-S/W (Step 1)

O-S/W Concentrate Substrate Conditioner, 234 ml

Freeze Warning:  This item cannot freeze and requires overnight shipping in winter months.

• The only non-flammable water-borne organo-silane available anywhere. Chemically “locks” potentially adverse surface conditions, strengthen and stabilizes the surface, and increases the chemical bond between sealer and substrate. This is the first step but should be skipped if using acid stains.