Permaguard sealer from Cyntech seals and protects concrete, brick, and stone surfaces. This water, acrylic and urethane-based product is ideal for interior use since it doesn't have a strong solvent odour. It is very low in volatile organic compounds, making it an eco-friendly product. It is water and sun resistant, and strong enough to stand up to de-icing salts, motor oil and various other chemicals, making it ideal for outdoor surfaces. The product will not whiten under water and dries quickly under normal conditions.