Removing and replacing patches on hypalon - Mountain Buzz
 



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Old 04-11-2010   #1
 
Boise, Idaho
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Removing and replacing patches on hypalon

I've got an ancient Miwok 14' raft of hypalon. I've got two leaking valve boots, a d-ring attachment that it peeling off, and a number of old patches that should be removed and replaced. My question is about the best way to remove glued on patches such as the ring around the boot valve, the remaining glued portions of the d-ring patch, and the previous patches. From what I've read it sounds like I want to heat and peel. Is that the best method? Will a hairdryer provide adequate heat or do I need a heat gun?

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Old 04-11-2010   #2
 
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billings, Montana
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Sounds like a gallon of gas would just about finish that thing off. Just kidding, it sounds like careful use of a heat gun might be you best option, maybe a little bit of mek applied with a q tip to help soften the glue?
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Old 04-12-2010   #3
 
Boise, Idaho
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Old 04-12-2010   #4
 
SMCanyon, Colorado
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I seem to recall removing hypalon d-rings using a hair dryer.
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Old 04-12-2010   #5
 
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Get a gallon of tolulene. Saturate and when glues softens use a putty knife to pull the edge up and pull off with vicegrips. Pregluing get the area cleaned up with tolulene before applying the shore adhesive.
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Old 04-12-2010   #6
 
prescott, Arizona
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where and how are your valve boots leaking?
are they the old slyle military valves?

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Old 04-15-2010   #7
 
Boise, Idaho
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86304, I inspected the leaking valve boots more carefully. Had to deflate the tube to find the problem, but when I did that I discoverd taht I could flex the boot, thep ortion that is glued to the inside of the tube and thus expose the spot where the glue had failed. That done, I scraped out as much old glue as I could, cleaned up with toluene, worked new glue in, and I seem to have it fixed. We'll see if these repairs hold under the stress of boating. And, yes, they are old military style valves.
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