CoverSeal PEN 55 is a specially formulated penetrating sealer for concrete and concrete pavers. It is designed to penetrate the surface and resist not only water, but also oil and food-based stains. Pen55 is highly WATER , SALT and OIL STAIN Resistant. We use fluoropolymer technology to get into the micro-pores of the concrete – into the capillaries – and seal or block any solutions, fluids or stains that tries to get into the surface. It’s designed not to change the appearance of the concrete. Pen55 concrete floor sealer is BREATHABLE. It’s a penetrating sealer, so it doesn’t leave a film on the surface Breathable. It is extremely repellent of water, oil and stains. What Situations Call For A Product Like CoverSeal PEN 55? CoverSeal PEN 55 is used predominantly for sealing concrete and concrete pavers. It can be used for both interior and exterior applications. That is, anywhere you want to protect the concrete or paver surface from: Oil stains Food-based stains Water and Salt In residential applications, it can be useful on your: Driveway Patio Pool deck Barbecue area In commercial applications – typically on new construction – it’s useful on: Parking decks Drive-through areas Pavers leading into buildings and public areas The major benefit of using CoverSeal PEN 55 concrete floor sealer in areas like these is to protect against oil and stains BEFORE the surface gets dirty. Also because the product is highly water-resistant it protects the surface from deicing salts and freeze-thaw attack. And again, if you’re looking to keep the natural look of your concrete or pavers, PEN 55 doesn’t change the appearance of the surface.