[CAUT] Epoxy strengths

[Ron Nossaman]

Bob Hull wrote:
> A question about substituting a laminating epoxy for a
> structural epoxy:
> 
> I need to put together another composite block tomorrow and
> I am out of the West System epoxy that I usually use.
> (Combining multilam with delignit cap about 9 mm thick for
> a pinblock).   I didn't know the West system 206 had leaked
> out of the bottom of the can and is all over the shelf!  I
> am considering using the System Three Clear Coat Laminating
> Epoxy in place of the West System.
> 
>> From what I could read about the strength of System Three
>> laminating clear coat epoxy (that I have on hand) it is
>> rated at 7800 tensile strength psi.  West system 105/206
>> is rated at  7320 psi.   This looks like the System Three
>> is stronger even though it is a laminating epoxy and the
>> West is structural.     Am I reading the ratings
>> correctly?  The West would probably do a better job of
>> filling any gaps though.

I don't think it'll be a problem. I've been using Unibond 800 
for this, but I don't see why any decent epoxy, or even 
something as prosaic as Titebond wouldn't work just fine.
Ron N