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Old 04-11-2010   #1
 
Boise, Idaho
Join Date: Apr 2009
Posts: 32
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
Paddling Since: Tues
Join Date: Jan 2009
Posts: 218
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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
Join Date: Apr 2009
Posts: 32
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Old 04-12-2010   #4
 
SMCanyon, Colorado
Paddling Since: 1980
Join Date: Apr 2008
Posts: 75
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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Salida, Colorado
Join Date: Oct 2003
Posts: 465
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
Paddling Since: 1982
Join Date: Apr 2008
Posts: 273
where and how are your valve boots leaking?
are they the old slyle military valves?

bob
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Old 04-15-2010   #7
 
Boise, Idaho
Join Date: Apr 2009
Posts: 32
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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