Here's what other sites are saying:
Pinhole leaks over a significant area of your inflatable presents a challenging repair problem. The Flexseal Tube Sealant Kit can be the answer for saving that boat from the dumpster! When air starts leaking out over a large area, patching on the outside can cease to be a solution. Flexseal's two-part liquid urethane mixture is placed in the inflation chambers to seal the leaks from the inside. It works on boats with NRS Pennel OrcaA(R), HypalonA(R), urethane and PVC coated materials. Helps you save older rafts, catarafts and inflatable kayaks. For a measure of coverage, one kit will repair the main chambers of a small 12-foot raft.
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