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Old 22-03-2020, 07:21   #1
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Sikaflex 291 vs 591

Any opinions about which is better for through hulls?
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Old 22-03-2020, 17:37   #2
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Re: Sikaflex 291 vs 591

I’ve used life caulk and two seasons so far
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Old 22-03-2020, 17:56   #3
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Re: Sikaflex 291 vs 591

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Originally Posted by Dockhead View Post
Any opinions about which is better for through hulls?
I’ve only used 291...it’s been the industry standard

I believe 591 has the same mechanical properties but is formulated to confirm to new health and safety rules
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Old 22-03-2020, 23:54   #4
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Re: Sikaflex 291 vs 591

OK, thanks. I will be on the hard for a week at the beginning of April, and will replace the last of my ball valves and probably a few through hulls. I'm ordering all the materials from SVB. I guess I'll go with the 291. Cheers.
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Old 18-12-2021, 11:46   #5
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Re: Sikaflex 291 vs 591

My tech guy used sika 292 to replace tru-hall valves . and now. I hear different opinions about ıt. some say 291 is better. some says 292 is not good for salt water. Please advice if yoıu have better experıence.
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