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Re: The next step, then?
By:Pete Roszyk
Date: 8/19/2003, 3:54 pm
In Response To: Re: Epoxy: liddy hacthes (Nick Schade - Guillemot Kayaks)

: I think this also shows the relative weakness of wood and epoxy to tension
: loads. For example redwood has a shear strength of 1,110 psi and a tensile
: strength of 250 psi. I'm not sure, but I believe epoxy is also relatively
: weaker in tension than in shear. This is not true of all glues, for
: example I think CA glues (superglue etc.) are stronger in tension than in
: shear.

Hi there, Nick.

So, wait for the sucker to pop, then re-glue with CA?

I'm sticking with my heat/humidity theory for now: The problem seems to go away when I re-coat with even a thin coat, as long as it finally appears glossy when it has hardened.

My failures have been right at the wood/thickened epoxy boundary on the bottom of the hooks. No wood failure was evident. Each failed hook had at least a small area somewhere on the endgrain surface that was not glossy. I take that to be an unsealed spot, even though I have no scientific evidence; it just seems to be acting that way. There's no way I'm getting anywhere close to a 250 p.s.i. tension loading with my arrangement.

Cheers,

Pete,
in Snohomish

Messages In This Thread

Epoxy: liddy hacthes
Sage -- 8/19/2003, 10:07 am
Re: Epoxy: liddy hacthes
John D. -- 8/19/2003, 3:06 pm
Re: Epoxy: liddy hacthes
Shawn Baker -- 8/19/2003, 12:02 pm
Re: Epoxy: liddy hacthes
Marcel R. in Portland, Or. -- 8/19/2003, 12:42 pm
Re: Epoxy: liddy hacthes
Shawn Baker -- 8/19/2003, 1:02 pm
Re: Epoxy: liddy hacthes
Ted Henry -- 8/19/2003, 2:11 pm
Re: Epoxy: liddy hacthes
Nick Schade - Guillemot Kayaks -- 8/19/2003, 2:10 pm
Re: Epoxy: liddy hacthes
Shawn Baker -- 8/19/2003, 3:56 pm
Re: The next step, then?
Pete Roszyk -- 8/19/2003, 3:54 pm
Re: The next step, then?
Sam McFadden -- 8/20/2003, 12:51 am
Re: New Style Hook *Pic*
Pete Roszyk -- 8/21/2003, 4:24 pm
Re: New Style Hook
Sam McFadden -- 8/21/2003, 11:29 pm
Re: New Style Hooks Tested To Failure *Pic*
Pete Roszyk -- 8/22/2003, 1:16 pm
Re: New Style Hooks Tested To Failure
Sam McFadden -- 8/23/2003, 11:07 am
Re: CEUS Compared to old
Pete Roszyk -- 8/22/2003, 8:57 pm
Re: The next step, then?
john -- 8/19/2003, 8:32 pm
Re: The next step, then?
Shawn Baker -- 8/19/2003, 4:15 pm
Re: The next step, then?
Don Beale -- 8/19/2003, 6:31 pm
Re: The next step, then?
Kurt Loup, Baton Rouge -- 8/19/2003, 5:31 pm
choice of goo?
Larry -- 8/19/2003, 5:46 pm
Re: The next step, then?
Sage -- 8/19/2003, 4:49 pm
Re: Hooks a'poppin
Pete Roszyk -- 8/19/2003, 12:41 pm