Join Date: Oct 2007
Thanked 24 Times in 23 Posts
Rep Power: 9
Re: solar panel fix?
Not to labour the point, but I don't think any other structural silicone adhesive or bedding compound (Dow Corning, 3M, Boat Life etc.) calls for a primer. Sika recommends using their primer for best results, but when you see the price of a micro-sized tin of primer your hair will curl. FWIW, I've been using it without the primer with no problems.
I do like your idea of using aluminium angle to hold the frame together. Perhaps with rivets.