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Polyurethanes like Sika 291, 3M 4200 or a Polysulfide like Boat Life Life Calk..
Since the boat stores all carry 4200 and do not carry butyl for small jobs what it the biggest downside to using 4200 for deck bedding in a pinch?
I know it cures so you have to get the part bolted down before it drys.
Last edited by davidpm; 04-07-2010 at 11:37 PM.