Water-based High-gloss Concrete Sealer & Dust Proofer with 30% Solid Contents

CHEM-SEAL 30-WB is a high performance, water based, acrylic sealer and dust proofer with 30% solids content by weight. It dries to form a clear and high gloss film. CHEM-SEAL 30-WB is UV stable and weather resistant. It is designed to protect all indoor and outdoor concrete and masonry surfaces on residential, commercial and light industrial applications.


Technical Data Sheet


CHEM-SEAL 30-WB can be used on concrete floors and walls, decorative concrete, stained concrete, stones, terrazo, and wood. Areas of applications include:

  • Side walks
  • Patios
  • Factory floors
  • Restaurants
  • Pool decks
  • Shopping centers
  • Concrete roofs
  • Terrazzo tiled roofs
  • Natural stone buildings and stone cladding


  • Non-Toxic
  • Non Flammable
  • Excellent adhesion
  • Doesn’t change substrate color
  • Ready to use and easy to apply
  • High solid contents and low viscosity


Product Packaging
5 GAL (18.925 LITER) PAIL



Property @ 25°C (77°F) Value
Specific Gravity 1.035
Solid Content by Weight, % 30
Freezing Temperature, ºF (ºC) ≈32 (0)
Color Milky white, dries clear
Fumes None
Flammability None
Curing Time @ 77°F (25°C), minute 20 minutes
Drying Time @ 77°F (25°C), hour Touch dry = 2
Firm Set = 24
Recoat interval, hour 2 to 4
Finish Smooth and high gloss


 Applicable Standards:

  • ISO 4892-2-2013, Ci4000 Xenon Weather-Ometer, LABORATORY ACCELERATED WEATHERING, 1500 Hours (UV, Temperature, Humidity and/or Wetting): test shows 5% change in gloss 60º.


Methods of Application: By spraying, rolling or brushing.


Tools Needed: CHEM-SEAL 30-WB can be applied using one or more of the following:


  • Low pressure or airless sprayer
  • Good quality paint roller
  • Good quality paint brush


Surface Preparation: The substrate must be sound, dry, clean and free from any contaminant like dust, dirt, mildew, algae, curing compounds, form release, sealers, oils, grease, etc.


Dirt and dust can be removed by sweeping and low-pressure washer. Areas contaminated with mildew, algae, oils and grease can be cleaned using a high-pressure washer and a biodegradable concrete cleaner like CHEM-CRETE CONCLEAN CCC060.


Cleaning of substrates treated with curing compounds, form release and sealers might be achieved by means of mechanical methods, such as shot blasting, grinding, wire brushing, and high-pressure washer.


Do not use acid etching, solvents or adhesive removers to clean substrates prior to application of CHEM-SEAL 30-WB.


Mixing: CHEM-SEAL 30-WB is ready to use; however it is recommended to be stirred before use. Take the required quantity into the paint tray or the sprayer for application and tightly close the product’s container.

Coverage: Approximately 200 to 300 ft2/Gallon (4.91 m2 to 7.34 m2/Liter).  Coverage depends on the porosity of the substrate and the final gloss required.


Compatibility: CHEM-SEAL 30-WB can be applied over virtually all sound substrates such as old masonry, old concrete, new masonry, new concrete, brick, terrazzo, unglazed tiles, asphalt, natural stone, etc.


CHEM-SEAL 30-WB can be also applied over materials that may degrade under UV rays to protect against such degradation. Example of these materials is polyurethane foams.



  • Minimum substrate temperature: 40°F (4.4°C).
  • Application on wet or water logged substrates is not recommended.


Cleaning: tools, equipment, spray unit, etc. can be cleaned immediately using clean water.


Store the product in cool dry area. Recommended storage temperature is from 40°F to 95°F (+4.4°C to +35°C). Don’t expose container to direct sunlight. PROTECT FROM FREEZING. Keep container closed when not in use. Shelf life is minimum 1 year in its original unopened container.


As all chemical products, adequate care must be taken. Avoid direct contact with food, eyes, skin, and mouth. KEEP AWAY FROM CHILDREN AND ANIMALS.


Breathing mask, goggles, and gloves should be worn during the application of CHEM-SEAL 30-WB. Skin contamination should be cleaned with plenty of water. If splashed into the eyes, it should be washed with a plenty of water using an eye-cup Optrex or Isogutt solution, then consult your doctor.


LIMITED WARRANTY:   International Chem-Crete Inc. warrants that, at the time and place we make shipment, our materials will be of good quality and will conform to our published specifications in force on the date of acceptance of the order.


DISCLAIMER:   The information contained herein is included for illustrative purposes only and, to the best of our knowledge, is accurate and reliable. International Chem-Crete Inc. is not under any circumstances liable to connection with the use of information. As International Chem-Crete Inc. has no control over the use to which others may put its products, it is recommended that the products be tested to determine the suitability for specific applications and/or our information is valid in particular circumstances. Responsibility remains with the architect or engineer, contractor and owner of the design, application and proper installation of each product. Specifier and user shall determine the suitability of the product for specific application and assume all responsibility in connection therewith. AM27319.