HOW-TO > PROJECT TIPS > Thompson's® WaterSeal® Advanced Clear Multi-Surface Waterproofer
- Do not mix with other waterproofing products; variations in the final appearance may result.
- Do not thin.
- Manually shake or stir contents for a minimum of 2 minutes before use.
- A small trial patch should be tried before application over the entire surface.
- Apply using a paint pad or brush. Keep the leading edge wet and distribute waterproofer evenly to help avoid lapmarks and keep the color uniform. Work from top to bottom or side to side in small areas so that the leading edge remains wet at all times during applicaion. If using a garden or pump-up sprayer, back-brushing (with paint pad or brush) will be required to even out the finish. DO NOT APPLY USING A ROLLER. Some nozzle openings of sprayers may be too small for this formula. DO NOT THIN. If clogging occurs, use paint pad or brush. If using an airless sprayer, it is recommended that tips 409, 411, and 413 be used. These tips provide adequate spray patterns while applying an appopriate amount of product to the surface being treated. These tips along with back-brushing provide proper results.
- Apply only ONE THIN even coat. A heavier, or additional coat will NOT improve performance or appearance. DO NOT APPLY TWO COATS. Avoid puddling.
- Apply by brush, roller, dipping, or sprayer. A garden "pump-up" style sprayer is the simplest method. Product will appear milky white during application, but will dry clear. If puddling of product occurs, remove within 15 minutes by redistributing to dry areas or wiping off.
- Darkening of the surface and tackiness will result if over-applied or if overnight temperature falls below 40° within 48 hours of application.





