Titebond® Professional Radon Sealant is specifically designed to reduce the entry of radon. It should be used on foundation cracks, joints and penetrations, around foundation coatings normally used for damp proofing, and membranes surrounding the foundation. It is an extremely flexible and durable product which allows for extension and compression of at least 25%. The mold and mildew resistant formula dries quickly and can be painted within 2-4 hours of application. Titebond Professional Radon Sealant is a VOC-compliant formula containing no added ozone-depleting chemicals, making it safer for you and the environment. It is nonflammable, emits no harmful fumes and cleans up with water.

Features & Benefits

  • Environmentally safe - VOC-compliant
  • Seals foundation gaps
  • Effective barrier to air, dirt, insects and radon
  • Extremely flexible with enhanced durability
  • Easy paintability and cleanup of an acrylic


  • ASTM C834, TYPE OP, GRADE -18°C

Application Guidelines

  • Application Temperature: Above 40°F and below 120°F
  • Service Temperature Range: -25°F to 180°F
  • Method of Application: Cartridge/caulking gun
  • Working Time: Approximately 15-20 minutes for a 1/4" bead
  • Working Surfaces: Surfaces must be cleaned down to the original substrate, dry, and free from any material that may deter adhesion. Bare surfaces should be primed before caulking.
  • Dry Time: Sealant should be dry to the touch and ready to paint in 2-4 hours.
  • Cleanup: Clean excess material with a damp cloth. Clean hands and tools with soap and water. Scrape dried excess.
  • Coverage:
    Container 1/8” Bead 1/4" Bead 3/8" Bead 1/2" Bead
    10.1 oz. Cartridge 123 ft. 31 ft. 14 ft. 8 ft.

Physical Properties

  • Type: Acrylic
  • Non-reactive VOC: 25 g/L (<1.5% wt.)
  • Color: Concrete Gray
  • Weight Per Gallon: 13.5 lbs.
  • Solids: 82%
  • Flashpoint: Solvent free/Not applicable
  • Viscosity: 450,000 cps
  • Freeze/thaw Stability: Stable
  • Storage Life: 24 months in tightly closed containers at 50°F to 80°F


Do not apply if rain is expected within 12 hours. Air, sealant and surface temperature should be above 40°F. Sealant should be dry to the touch and ready to paint in 2-4 hours. It is not designed for continuous submersion or use below the waterline. Note: According to the EPA, sealants can help limit the entry of radon through the foundation. It is also recommended that a professionally installed radon mitigation or fan based system be used in conjunction with this sealant. For questions, please call our toll free Help Line at 1-800-347-4583.

Product SKUs

Part NumberUPCCase UPCSizeWeightUnits Per PackagePackages Per PalletColor
32510370830325121003708303251910.1 Oz. Cartridge - Gray15.0012108

Caution Statement

WARNING: EYE, SKIN AND RESPIRATORY IRRITANT. Contains acrylic polymer, limestone, titanium dioxide, ethylene glycol. May cause eye irritation. Long term exposure to ingredients in this product can increase the risk of certain cancers. Adverse reproductive effects have been reported in animals. Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Wear appropriate personal protective equipment. First Aid: If swallowed, do not induce vomiting; contact physician. If eye contact occurs, flush eyes with water for 15 minutes; contact physician. Wash skin contact areas with soap and water; contact physician if irritation persists. For additional information, refer to Safety Data Sheet. KEEP OUT OF THE REACH OF CHILDREN.
This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.

Important Notice: Our recommendations, if any, for the use of this product are based on tests believed to be reliable. Since the use of this product is beyond the control of the manufacturer, no guarantee or warranty, expressed or implied, is made as to such use or effects incidental to such use, handling or possession or the results to be obtained, whether in accordance with the directions or claimed so to be. The manufacturer expressly disclaims responsibility therefore. Furthermore, nothing contained herein shall be construed as a recommendation to use any product in conflict with existing laws and/or patents covering any material or use.

2020 Bruck Street, Columbus, Ohio 43207
CUSTOMER SERVICE 1-800-669-4583
TECH SERVICE 1-800-347-4583

Franklin International