I made the FG layups for the windscreen fairing over the roll bar for the RV9 sliding canopy lip. Everything seemed to go well until a close inspection a day later when I opened the canopy. There is a 13 inch strip centered near the top at the rear edge where the epoxy partially delaminated from the plexi. My fairing width is 1-3/4 inches. The lip overhang is about 1/2 inch, then about 5/8 inch of delamination, then 5/8 inch of good bond. I used 4 strips of FG cloth varying from full width at the base to 7/8 inch on top.
Not sure what to do about the area of delamination, if anything. Edge in this area will lift up slightly but not enough to get sandpaper in there. I am concerned that if I try and pry up the edge to get sandpaper in there, vacuum out loose dust from the edge, and maybe some squirts of some kind of adhesive or more West system epoxy that I may break more bond, plus, it might not even work.
I did scuff up the plexi good with 60 or 80 grit-whatever it said in the manual, vacuumed off, then wiped down with mineral spirits. My possible fault was that I did not use the double wipe method.
Any ideas out there for the experts in VAF land?
Jim
Not sure what to do about the area of delamination, if anything. Edge in this area will lift up slightly but not enough to get sandpaper in there. I am concerned that if I try and pry up the edge to get sandpaper in there, vacuum out loose dust from the edge, and maybe some squirts of some kind of adhesive or more West system epoxy that I may break more bond, plus, it might not even work.
I did scuff up the plexi good with 60 or 80 grit-whatever it said in the manual, vacuumed off, then wiped down with mineral spirits. My possible fault was that I did not use the double wipe method.
Any ideas out there for the experts in VAF land?
Jim