Thompson's Water Seal Transparent Wood Sealer, Chestnut Brown, 5 Gallon Thompson?s WaterSeal Transparent Wood Sealer provides long-lasting exterior wood protection. Transparent opacity adds subtle color and shows the most wood grain. Features Durable Protection from Water Sun Damage Year-Round Protection in Just One Coat Enhances Wood Grain Guaranteed 4 Years on Decks, 5 Years on Fences and Siding Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.