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Re: Strip: Epoxy vs. PVC for laminations
By:Al Edie
Date: 1/13/2011, 11:49 am
In Response To: Strip: Epoxy vs. PVC for laminations (Ian Cummins)

: Epoxy is often specified for glueing up stems and coaming lips.
: I've done mine with pvc thinking that it's used for 98% of the
: boat, why not the rest. And it's sure a lot easier to work with
: and clean up. Does epoxy offer more strength in these abused
: areas? Am wondering if I'll regret my choice later.

: Thanks,
: Ian

One other difference between PVA and epoxy, in my experience, is that epoxy does better on end grain than PVA does. It seems to me that endgrain PVA joints often starve themselves, because they require significant clamping pressure, and they have limited open time - you are pretty much obliged to clamp them while the glue is still soaking into the end grain. OTOH with epoxy, you can let the glue soak into the end grain until it stops doing so, add a bit more, and then clamp lightly. On still one more hand, as long as your joints hold together until everything is overlain by glass and epoxy, they should be good enough.

Nonetheless, I would choose epoxy on end grain joints, especially any that may not be substantially reinforced with glass.

Best regards,

Allan Edie

Messages In This Thread

Strip: Epoxy vs. PVC for laminations
Ian Cummins -- 1/12/2011, 9:20 am
Re: Strip: Epoxy vs. PVC for laminations
Allan -- 1/12/2011, 3:48 pm
Re: Strip: Epoxy vs. PVC for laminations
Bill Hamm -- 1/12/2011, 4:07 pm
Re: Strip: Epoxy vs. PVC for laminations
Ian Cummins -- 1/12/2011, 5:18 pm
Re: Strip: Epoxy vs. PVC for laminations
ancient kayaker -- 1/13/2011, 1:05 pm
Re: Strip: Epoxy vs. PVC for laminations
Al Edie -- 1/13/2011, 11:49 am
Re: Strip: Epoxy vs. PVC for laminations
Bill Hamm -- 1/13/2011, 2:06 pm