Join Date: Mar 2006
Location: New England
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Consider that the top plate on some chainplates may have at most a 1/16" of sealant beneath it... 50% means the chainplate top coverplate can only move 1/32" before breaking the sealant's seal. If you have an 1/8" around the chainplate, and the chainplate moves more than 1/16", the sealant will likely break. Butyl tape usually has a much higher elasticity, but it is brand dependent.
Originally Posted by knothead
Thank you all for your replies.
SD, I read this on the product's data sheet.
" ±50% Movement Capacity - can accommodate 50% movement in both extension and compression and has excellent recovery after cycling."
I'm not sure how that compares to other sealants but it seemed to be pretty good.
Maine, I was pretty sure how you felt about silicone. I was thinking that this stuff might be different.
I realize that just because a manufacturer has a preference for a particular product doesn't mean it's the best. I just thought that IP might be a better than average firm to emulate.
Also, I seem to remember reading once that you recommend a fairly large gap around the chainplate. Could you remind me what you said about that?
Smack, I wasn't really gone. But thanks for the sentiments. Ditto.
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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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