Rainguard Micro-seal 1 Gal Clear Penetrating Silane Siloxane Professional Grade Water Repellent Sealer - Concrete, CMU, Block, Brick, Stucco, Stone, Wood for Horizontal/Vertical, Apply Low Temp 35F & Newly Poured Concrete, 10 Yr Warranty Deep penetrating 100 percent breathable water repellent for vertical and horizontal surfaces Does not alter surface appearance - leaves not surface film, not sheen and will not yellow Stain resistant to oil, gas and anti-freeze for outstanding protection Excellent resistance to water, salt spray and wind driven rain Protects your investment with a ten year satisfaction guarantee