SureCrete’s HS 200 Series is a premium exterior Silane Based clear stamped concrete sealer for durable protection on driveways and pool decks as well as high traffic walkways and sidewalks. HS 200 Series is a 20% Solids silane-based acrylic sealer that is available in a low-VOC formula. HS 200 is one of the best Penetrating Concrete Sealers on the market today.