Reply
 
Thread Tools Search this Thread
 
Old 28 May 2014, 20:00   #41
Member
 
F470's Avatar
 
Country: USA
Town: Portland
Boat name: Tilikum
Make: Zodiac FC-470
Length: 4m +
Engine: Suzuki DT-40
Join Date: Apr 2013
Posts: 246
It appears that the repair that IBC did, didn't take. It's leaking at the edge of the patch. I suspect they didn't coat the exposed fabric. Any thoughts, ideas, comments?

Click image for larger version

Name:	ImageUploadedByRIB Net1401306045.643568.jpg
Views:	227
Size:	37.6 KB
ID:	95078
__________________
F470 is offline   Reply With Quote
Old 28 May 2014, 21:28   #42
Member
 
Country: USA
Town: Seattle
Boat name: Water Dog
Make: Polaris
Length: 4m +
Engine: Yamaha 60hp
Join Date: Apr 2007
Posts: 1,152
Is that the patch which is leaking or the seam adjacent to the patch?

Crossing the seam with a patch is a bugger.
__________________
captnjack is offline   Reply With Quote
Old 28 May 2014, 21:34   #43
Member
 
F470's Avatar
 
Country: USA
Town: Portland
Boat name: Tilikum
Make: Zodiac FC-470
Length: 4m +
Engine: Suzuki DT-40
Join Date: Apr 2013
Posts: 246
I suspect the patch, not the seam because that's where the issue originated. It was fine for a week or two until I filled it with recommended pressure. My question is, what would you coat the exposed fabric with that would bond to the Hypalon adhesive? Would 3M 5200 Marine Adhesive appropriate? Would the adhesive used to bond Hypalon also adhere to the 5200? I suspect they didn't coat the exposed fabric which caused it not to adhere properly in that area. Will ask when I take it back in. Pain in the rear...
__________________
F470 is offline   Reply With Quote
Old 29 May 2014, 00:08   #44
Member
 
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,277
Quote:
Originally Posted by F470 View Post
I suspect the patch, not the seam because that's where the issue originated. It was fine for a week or two until I filled it with recommended pressure. My question is, what would you coat the exposed fabric with that would bond to the Hypalon adhesive? Would 3M 5200 Marine Adhesive appropriate? Would the adhesive used to bond Hypalon also adhere to the 5200? I suspect they didn't coat the exposed fabric which caused it not to adhere properly in that area. Will ask when I take it back in. Pain in the rear...
Delaminate the patch and apply a bigger patch with hypalon adhesive. You want a minimum of 2" away from the leak or affected area. The patch ideally should be circular.

It looks like it is coming from the seam to me. Seam leaks are nearly impossible fix...the ledge of material creates a tunnel for air to escape. There are two ways to fix a seam leak:

1.) The official way. Use a VERY lightweight material, say 300 denier or similar hypalon, and burnish the crap out of it. Lay the patch uphill and burnish the lower edge before you place down the upper edge.

2.) The easy way...rough up the material, wipe with toluene, then brush on some McNett's Aquaseal. Afterwards, put a patch over the whole shebang.

CAUTION : Nothing removes McNett's Aquaseal. Not heat, not solvent...only mechanical abrasion will remove it.

DO NOT USE 3M 4200 / 5200 / other silicone type sealants. They don't work for air leaks...they do work okay for water leaks though.

You will want to use a 2 part adhesive such as the Weaver 2001 hypalon glue kit.
__________________
Richard
Gluing geek since 2007
Opinions and intepretations expressed are solely my own and do not express the views or opinions of my employer
office888 is offline   Reply With Quote
Old 30 May 2014, 23:32   #45
Member
 
F470's Avatar
 
Country: USA
Town: Portland
Boat name: Tilikum
Make: Zodiac FC-470
Length: 4m +
Engine: Suzuki DT-40
Join Date: Apr 2013
Posts: 246
I'm quite confident its the patch. When looking closely it bubbles at the top edge of the surface of the patch. The patch is also already delaminating in one corner.
__________________
F470 is offline   Reply With Quote
Old 31 May 2014, 00:34   #46
Member
 
Country: USA
Town: Portland, OR
Make: Zodiac F470
Length: 4m +
Engine: Suzuki DF25EL
Join Date: Jun 2013
Posts: 231
Take it back to IBC? Or maybe peel patch off, use some of this Inland Marine Liquid Rubber Inflatable Coating
then put new patch over it for mechanical strength?
__________________
SIBRider is offline   Reply With Quote
Old 31 May 2014, 00:38   #47
Member
 
F470's Avatar
 
Country: USA
Town: Portland
Boat name: Tilikum
Make: Zodiac FC-470
Length: 4m +
Engine: Suzuki DT-40
Join Date: Apr 2013
Posts: 246
I'm talking it back. The liquid rubber looks good. I'll suggest that. Thanks!
__________________
F470 is offline   Reply With Quote
Old 31 May 2014, 23:36   #48
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
If you ever try the Aquaseal thing that Office talked about, I find it best to thin out the Aquaseal with the clear Cotol that comes in a can (not the "filled" crap that comes in a little jar in the blister pack.)

Using a 2:1 to 4:1 mix of Cotol to Aquaseal, you end up with a thin mix that penetrates fabrics and such better than straight Aquaseal. A bonus is it also cures in about 15 minutes, rather than the 24 hour cure of straight Aquaseal.

I do this a lot with drysuit leaks, as well as air leaks in BC bladders.

jky
__________________
jyasaki is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




All times are GMT. The time now is 22:39.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.