A930Rocket,
the white stuff... I do have a layer of thick rubber like behind the wall, but it's still there after the wall is wet. I tried to spray wd40 and brake cleaner on some of the blocks just to see if they work. Yes, they work for a while but eventually it came back after a rain. In summer, it's automatically gone.
No, it's not the glue.
Alright, will search for the 3m marine stuff.
Thanks.
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Fat butt 911, 1987
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