blister repair

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Apr 9, 2013
2
Hunter 30 Southport
Looking for comments from anyone who has used the product 3M Blister and Reair Filler to fix blisters. Thanks!
 
Jun 9, 2008
1,792
- -- -Bayfield
I have used 3M vinylester products for blister repair and prevention and wasn't happy with the results. As a matter of fact, 3M had some warranty problems with some of their blister repair bottom products - namely the vinylester types. 3M makes a whole lot of marine maintenance products that are absolutely wonderful, but they did have some difficulties with blister repair products some time ago. I prefer Interlux Interprotect Systems, which have had years of great success.
 
Nov 23, 2011
2,023
MacGregor 26D London Ontario Canada
I just did my bottom with Interlux. It worked great. I had small bump like blisters I sanded flush with 60 grit and a 5" orbital sander. (Almost 5 hr on a 26'!) My "blisters" were more of a molding defect I think. They were about .5mm high and mostly just a dirt buildup. Nothing in them... solid.
Remember to wipe the bottom off with acetone after sanding and before applying the repairs.
Some photos of the crack, bumps, sanded, the Interlux, and the finished bottom (Aquaguard anti fouling), the patch 7x11"
 

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