[NSRCA-discussion] Epoxy Question

[george w. kennie]

Jim,
The stuff is extremely easy to use. Squeegee it on the skins in the same way 
you do the epoxy. There's no need to hurry, it doesn't flash off on you the 
way epoxy does.I have a small bottle filled with H2O that has a spraycap 
fitted and I just lightly mist the cores before attaching the skins.I have 
two pieces of  2'x4'x3/4" chipboard that I use, one beneath and one on top 
of the shucks. On top of the top board I place two Cement Blocks. The blocks 
weigh 42 pounds apiece and the chipboard is probably another 15-20 
additional pounds. Sounds like a lot, but the results are super. If you try 
this method, you will probably not go back to epoxy.I think the bond is 
stronger and the U migration into the foam strengthens the foam yielding a 
stiffer wing. The weight is probably the critical factor as the expansive 
forces of the glue are significant.
Good Luck,
Georgie




----- Original Message ----- 
From: "J N Hiller" <jnhiller at earthlink.net>
To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
Sent: Wednesday, November 21, 2007 4:28 PM
Subject: Re: [NSRCA-discussion] Epoxy Question


>I have been reluctant to try it thinking I would screw it up. How much do
> you put on? How much weight is needed to contain the expansion.
> Jim Hiller
>
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org]  On Behalf Of wgalligan
> Sent: Wednesday, November 21, 2007 1:14 PM
> To: NSRCA Mailing List
> Subject: Re: [NSRCA-discussion] Epoxy Question
>
> If this question was raised as a method for skinning wings, then why not 
> use
> urethane glue. One part, spreads easy and cures hard and quickly with 
> plain
> ole 02moisture.  Gives ample working time and unlike epoxy will expand 
> with
> moisture to fill voids and between foam beads.  Available at local 
> hardware
> stores and less expensive.
>
> Seems like a no-brainer to me.
>
> Wayne Galligan
>
> ----- Original Message -----
> From: "J N Hiller" <jnhiller at earthlink.net>
> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
> Sent: Wednesday, November 21, 2007 2:00 PM
> Subject: [NSRCA-discussion] Epoxy Question
>
>
>> Thin Epoxy? I have been using "HOBBYPOXY SMOOTH 'N' EASY" epoxy finishing
>> resin to skin foam wings, spreading it with a scrap balsa squeegee. It 
>> has
>> ample working time and is thinner than glue. Is this OK? I have had no
>> problems using it on unsealed skins at about one ounce per 800 square
>> inches. I need to try sealing the skins on my next build.
>> Jim Hiller
>>
>>
>>
>
>
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