Join Date: Mar 2006
Location: New England
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First, I'd agree with BLJones... let the stuff cure and the cut the excess away with a plastic razor. I'd also point out that you really shouldn't listen to the guys at the hardware store, since most of them are completely clueless.
Second, you should have used Dow 795, not DAP or GE silicone from the hardware store, which is what it sounds like you used. DAP and GE are not structural adhesives like Dow 795 is, and really not well suited for this type of application.
Third, you probably should have gotten plexiglass or acrylic rather than lexan or polycarbonate for the big ports. If something hits the polycarbonate hard enough, it will flex and foreshorten—breaking the seal between it and the silicone. Acrylic generally will not do this.
Finally, by liberally spreading the silicone over the cabin top and sides, you've basically guaranteed that almost nothing will stick to those surfaces properly in the future. Silicone sealants tend to leave a trace of silicone oils that are very pernicious and difficult to remove or clean up. The oils get into the minute pores in the gelcoat and stay there.
Generally, when working with silicone and bedding ports in it, you should mask off the area around the port so that you can clean up the silicone very neatly and not contaminate the surrounding surfaces.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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