Composition question about Tire Seal-R October 23, 2012 Solutions Central › Composition question about Tire Seal-R 0 Vote Up Vote Down BPfan Staff asked 12 years ago Is the Sear-R tire sealant ( part # 1301) a water base or silicone base? 1 Answers 0 Vote Up Vote Down chemtooler Staff answered 12 years ago It's a water base. Please login or Register to submit your answer Username or Email Address Password Remember Me