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Old 03-29-2017, 01:56 PM   #5
Java230
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Join Date: Oct 2014
Location: Seattle
Posts: 227
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I have used a combination of things, OSI, Sikalfex, Geocell ProSeal. The Polyu caulks, the sika and OSI, seem to bond pretty damn well. I fell they are very similar.

3M 5200 will stick things together, permanently, but it doesn't like UV much.
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