I don't, when we bonded the aluminum fins to our N5800 rocket we used LOCtite Hysol 9430 and used a sanding while epoxy on approach. It held to Mach 3 so I guess it was ok. The West Systems kit looks interesting. Bryce Chanes Sent from my iPhone On Nov 29, 2012, at 4:51 PM, R Dierking <applerocketry@xxxxxxxxxxx> wrote: > Does anyone have experience using the West Systems 860-8 aluminum etch kit > for bonding aluminum to fiberglass? > > Richard Dierking