Penetrol creeps into the most minute crevices and pinholes of any surface where ordinary paint cannot enter. There it dries to a tough yet flexible finish, forming a powerful bonding film for the next coat of paint.
Used alone as a primer/sealer or added to oil/alkyd based paint, varnishes and stains or metal and wood primers it enhances their inherent qualities and makes them stick to almost anything - even glass. Brush and lap marks are eliminated. Premature peeling, cracking and chalking are a thing of the past.
Unlike thinners, Penetrol does not evaporate and actually makes more paint. Ensuring greater coverage from each litre of paint it saves money.