Quote Originally Posted by Randall L Turner Jr View Post
The material surface doesn't have to be sealed. I do use Scigrip solvent to weld the joints together though. So it is water tight. Scigrip 3 and 4 are water thin solvents that you use a squeeze tube to run it along the joints, capillary action pulls the solvent into the joint, and the solvent "melts" the material causing it to resolidify together.
I take it you used it on the inside of the tank and outside? And used both 3 and 4 or just one of them?


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