Titebond Radon Sealant is specially designed to reduce the entry of radon. It should be used on foundation cracks, joints and penetrations. It is extremely flexible and durable allowing compression and extension of 25%. Can be painted in 2-4 hours. 
 
Titbond radon sealnt is mold and mildew resistant and is also VOC compliant formula making it safer for you and the enviroment. It is nonflamable and cleans up with water