Originally posted by matchlessaero
One other thought- I just found out that 3m has changed their formulation of 77 spray. The new formulation apparently contains acetone which will melt foam core wings. If you have a can of the good old stuff, use it sparingly. They do have a non-acetone formula available, but I have not heard of anyone using it.
Here's a link to the PDf file from 3M on 77 spray adhesive. It appears that it does now contain Acetone.
http://www.3m.com/us/mfg_industrial/...se_7870349.pdf
The good news it that 3M makes another spray adhesive called 78 which is specifically designed for insulation foam, which wings are usually cut from.
http://www.3m.com/reclosables/html/insulation78.jhtml
3M 78 also has an equal or higher peel strength and temperature resistance than 77.
http://www.3m.com/reclosables/pdf/Ae...rodSummary.pdf