Clear Multi-Surface Waterproofer

Proven to waterproof concrete, brick, exterior wood and other exterior surfaces. Use as a concrete waterproofer, brick sealer and wood sealer.

Key Features

  • Helps Prevent Water Damage
  • Helps Maintain Natural Color-Dries Clear
  • Use as a wood sealer, brick sealer, or for concrete waterproofing
Approximate Coverage
50 ft²/gal - 375 ft²/gal


For Use In Location
Exterior
Opacity
Clear-Crystal Clear
Dry Time
24 hour - 3 day
Recommended Coats
1
Dry to Recoat
3 day - 45 day
Package Sizes
1-Quart, 1-Gallon, 5-Gallon, 6-Gallon
Cleanup
Mineral Spirits

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Application Directions

  • Before You Begin
    • Be sure that both surface and air temperatures are above 50° F during application andremain above 40° F for 48 hours after application. Do not apply product if rain is forecastedwithin 24 hours of application.
    • Perform the splash test. Sprinkle water on various sections of surface to be sealed. Ifwater absorbs and darkens color of substrate within five seconds, surface is porous andconsidered ready to be treated. If water beads up or otherwise sits on top of surface, thensurface does not need protection at this time.
    • Cover plants and shrubs. Move all objects that could come in contact with overspray.Wet overspray of product can be removed by flushing immediately with water. Dried overspray can be removed with regionally compliant cleaner, following manufacturer’ssafety recommendations.
    • Do not use in below-grade application where water pressure is a problem, or on paintedor recently stained surfaces.
    • DO NOT USE AS AN ADDITIVE TO PAINT.
  • Preparation Warning
    WARNING! Removal of old paint by sanding, scraping or other means may generate dust or fumes that contain lead. Exposure to lead dust or fumes may cause brain damage or other adverse health effects, especially in children or pregnant women. Controlling exposure to lead or other hazardous substances requires the use of proper protective equipment such as a properly fitted respirator (NIOSH approved) and proper containment and cleanup. For more information, call the National Lead Information Center at 1-800-424-LEAD (in US) or contact your local health authority.
  • Preparation
    Surfaces and substrates must be free of all mildew, dust, dirt, oil, soot, grease and other contaminants. For Concrete/Brick/Masonry: urfaces must be thoroughly cleaned prior to applicationwith a concrete cleaner applied according to label directions and cautions. Concrete thathas a smooth, flat finish must be opened for proper penetration. This should be done usinga concrete etch product. Follow etching product use instructions carefully and ensurethorough rinsing and removal of etching solution. Allow concrete to dry a minimum of 72hours after etching before applying a waterproofer. For Wood: Surfaces must be thoroughly cleaned prior to application with a deck cleanerapplied according to label directions and cautions. If surface is damp or wet from cleaning or weather, allow the surface to dry thoroughly (a minimum of 48 hours) before application. WARNING! Removal of old paint by sanding, scraping or other means may generate dust or fumes that contain lead. Exposure to lead dust or fumes may cause brain damage or other adverse health effects, especially in children or pregnant women. Controlling exposure to lead or other hazardous substances requires the use of proper protective equipment, such as a properly fitted respirator (NIOSH approved) and proper containment and cleanup. For more information, call the National Lead Information Center at 1-800-424-LEAD (in US) or contact your local health authority.
  • Application
    • Do not mix with other waterproofing products; variations in the final appearance may result.
    • Do not thin.
    • Concrete/Stucco must be completely cured (minimum of 4 weeks) and dry.
    • Shake, stir or mix thoroughly before and occasionally during use.
    • A small trial patch should be tried before application over the entire surface.
    • Only one light coat is necessary in most applications.
    • Apply by brush, roller, 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 overapplied. May also occur after application, if overnight temperature falls below 50F within 48 hours of application.
  • Dry Time
    • Allow at least 24 hours to dry; however drying time will vary depending on the substrate, temperature, and humidity. When completely dry, perform the splash test to determine if second coat is necessary.
    • Allow 45 days drying time before applying latex paint over Thompson’s® WaterSeal® Clear Multi-Surface Waterproofer.
    • Allow a minimum of 3 days drying time before applying oil based paint over Thompson’s® WaterSeal® Clear Multi-Surface Waterproofer.
    • Length of protection will vary depending on environment. Perform the splash test once a year to see whether reapplication is necessary. Vertical and horizontal surfaces will experience color changes at different rates.
  • CAUTIONS
    CAUTIONS: Use only with adequate ventilation. To avoid overexposure, open windows and doors or use other means to ensure fresh air entry during application and drying. If you experience eye watering, headaches, or dizziness, increase fresh air, or wear respiratory protection (NIOSH approved) or leave the area. Avoid contact with eyes and skin. Wash hands after using. Keep container closed when not in use. Do not transfer contents to other containers for storage. FIRST AID: In case of eye contact, flush thoroughly with large amounts of water. Get medical attention if irritation persists. If swallowed, call Poison Control Center, hospital emergency room, or physician immediately. WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. DO NOT TAKE INTERNALLY. KEEP OUT OF THE REACH OF CHILDREN.

Data Sheets:

Product Number Base Container Size SDS PDS
032053241048 Clear 1 Quart SDS PDS
032053241017 Clear 1 Gallon SDS -
032053241055 Clear 5 Gallon SDS PDS
032053241116 Clear 1 Gallon SDS PDS
032053241062 Clear 6 Gallon SDS -