THOMPSONS WATERSEAL TH.041851-16 Transparent Stain, Woodland Cedar Prevents Water Damage Advanced Polymers Provide Fade Resistant Color Coating Resists Mildew and UV Damage Applies to Freshly Cleaned Damp or Dry Wood Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood He is named after E.A. Thompson  Edward Addis Thompson, the man who founded the company and invented the original Thompson&#039;s WaterSeal formula Addis has appeared on every can of every Thompson&#039;s WaterSeal product for decades  but he just made his TV debut in 2014 Favorite Singer: Seal If He Could Do Any Other Job: Navy Seal Favorite Vacation Spot: Seal Beach, CA Favorite Snack: Anchovies  hold the pizza