Hi guys, I just tried to do a resin infusion (doing it as a hobby, glassing wings for model aircraft) in the garage and the resin just didn't want to play ball. After 5 hours of using a heat gun to get the resin to flow into all the spaces on the wing (doubly hard to do the top and bottom of the wing at the same time) and the damn stuff just wouldn't shift, what's the minimum working temperature for this stuff. It's been a cold night, started at 4 deg and it went down to -1 deg. I know the pot life is 40-60 mins, I guess I stuck with it out of desperation as the wing alone took 38 hours to shape . Any input would be great, thanks guys.

I Agree with CJ on the getting some ventilation in the box, should make it a fair bit safer, your shed is'nt too close to the house if it all goes wrong is it?!!!

I have run a very similar sounding stack to yours CJ as I've just started down the infusion route for wing skinning, after a few small experiments I have gone for this stack;

Bag
Mesh
2x Peel Ply (explain later)
1x perforated release film
3x 25gsm Cloth
Styrofoam
3x 25gsm Cloth
1x perforated release film
2x Peel Ply
Mesh
Bag

I use release film as the last layer contacting the reinforcement as I discovered peel-ply was difficult to remove from the really light cloth, it just kept trying to delaminate and peel it apart, the release film comes of really easily though and leaves a pretty good finish straight away, the 2 layers of peel ply are to smooth out the impression from the mesh a bit, you can run the infusion with 1 or none no problem but the shape of the mesh presses the surface and leaves a pattern the 2 layers of peel ply have helps this a lot.

as for the spiral, so far I've only been doing 6inch wide sections of wing to tests a few methods but i have been pulls the resin from a spiral an inch in front of the leading edge to the vacuum and inch behing the trailing edge, on a 10inch chord wing so a foot in total, this has run through in about 5-10 mins no trouble.

Good tip on the paint powder too I might have to give that a try.

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