| We researched the Zypex a bit. According to the rep and the manufacturer's tech, the crystals that form will rehydrate if water is available (leaking). The crystals then swell and change their molecular structure, thereby sealing the leaks. Talked to our gunite guy. He says, "yeah, we've added it to the gunite we shoot, especially on swimming pools and retaining walls where a moisture barrier was required. Interesting stuff!
Mike |