>-Andy Knapp, Minneapolis wrote: > The last time I talked to Perception, now Harmony Accessories, in April, they > said they had discontinued Hydrogrip "for environmental reasons" and were > recommending a 3M spray adhesive which they weren't yet stocking. Apparently > there was some problems with selling Hydrogrip as configured, in California. > I have some of the 3M stuff on order for the store I buy for, but don't have > any experience with it yet. > > Anyone know anything about the 3M product? > Oops, I'm on the digest and forgot I was going to respond to this (and whoever said use Spray 90). A recent post containing the above from Andy reminded me. Spray 90 works really well for a lot of things but it is not waterproof. When it first came out somebody glued a bunch of foam buoys together with it and they were coming apart in two weeks of being in the salt water. 3M is real hesitant about calling any glue waterproof but the one I would use is 3M Spray 80(and have used for well over ten years to glue the vinyl or rubber sliding seat track rails to the glass hull)--I sand both surfaces and I haven't had any fail yet that I know of--except for the one I used Spray 90 on in a demo kayak to test it out when it first came out--it lasted 3 years or so before it failed). If you are talking gluing to a poly kayak then all bets are off (but spray 80 is the first contact cement I would try because for one thing it is formulated to "resist plasticizer migration". The slippery waxy plasticizer migrating to the surface (why a plastic kayak gets brittle with age and/or sun) means that anything glued to that surface will eventually get this waxy slippery stuff between the glue and the surface. Highly flammable, be real careful about anything that could make a spark. ember or flames around it (but that's another story). A lot harder to find than Spray 90 too. Be sure to really rough up the surface on the plastic real well too. Matt Broze http://www.marinerkayaks.com *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
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