Can anyone tell me if BSI 15 minute Epoxy is safe to use on polystyrene or foam? I need to glue 2 wing halves together..a wooden dowel holds the 2 parts together and glue applied to cross section. The wing is made of ply and polystyrene foam. Thanks.

Try it on a spare piece of foam, not on the plane first. See if it reacts with the foam in any way. If it does, then its obvious that you should not use it and tofind something else. If it does work, if does not react with the foam, then you should be ok.

If by BSI you mean Bob Smith Industries
http://www.bsiadhesives.com/Pages/hobby/epoxies.html
It should be fine.

Here's the application chart: [link=http://www.bsiadhesives.com/Pages/hobby/adhesive.html]http://www.bsiadhesives.com/Pages/hobby/adhesive.html[/link]

Once again..thank you guys for all your help/advice!