Start with 15 min epoxy.
5 min might not be enough working time for someone new to epoxy. If you want to go all-out and get the sample cups (the kind you go in in the hospital) and glue mixing brushes that works as well. Works better, in fact since the glue brushes (ask for acid brushes in a plumbing or electronics store) make evenly applying epoxy much easier.
This is also more epensive, but not by much if you buy stuff in bulk. If you plan to build lots of airplanes, or eventually complex ones I recommend this highly. Eventually you can start mixing in what are called microballoons or microbeads to make the process go quicker, fill gaps better, set faster and sand easier and smoother. I use 30-min or even 2-hour epoxy mixed with 25-50% microbeads over my 'glassed boat hulls. The stuff's still plenty strong, and it fills gaps with less weight than straight epoxy.
If you have any epoxy questions, feel free to email me at
[email protected]
Thanks.