jcbarker
Well Known Member
Hello All,
If you've been searching in vain for an adhesive that works on the "h" shaped rubber weather strip used on the wing root fairing, I have a solution.
What I tried that DIDN'T work:
ProSeal
Sika Flex
Silicon rubber adhesive (several types)
Contact cement
Loctite acrylic two part adhesive 3032. This was recommended by Loctite.
You get the idea; nothing seemed to work. I called Van's and learned from them that they haven't found anything either. (One might ask why they don't change the material; but I digress). They did tell me who the manufacturer is who in turn told me the material is a blend of EPDM and Polypropelene. No wonder nothing sticks!
Loctite's second recommendation was Prism 435 (a cyanoacrylate) used in conjunction with Primer 770. Bingo! Excellent results! When trying to peal off the rubber channel the rubber tore instead of just separating at the glue line like everything else I tried.
Application procedure:
-Apply primer to elastomer.
-Let dry for 30 minutes.
-Scuff aluminum and clean with MEK.
-Fit channel to aluminum.
-Run thin bead on between rubber and aluminum. I applied adhesive to only one side.
-Tape down to aluminum.
-Cure over night.
Hope this helps someone...
John
RV-8 819WB
In fiberglass ****...
If you've been searching in vain for an adhesive that works on the "h" shaped rubber weather strip used on the wing root fairing, I have a solution.
What I tried that DIDN'T work:
ProSeal
Sika Flex
Silicon rubber adhesive (several types)
Contact cement
Loctite acrylic two part adhesive 3032. This was recommended by Loctite.
You get the idea; nothing seemed to work. I called Van's and learned from them that they haven't found anything either. (One might ask why they don't change the material; but I digress). They did tell me who the manufacturer is who in turn told me the material is a blend of EPDM and Polypropelene. No wonder nothing sticks!
Loctite's second recommendation was Prism 435 (a cyanoacrylate) used in conjunction with Primer 770. Bingo! Excellent results! When trying to peal off the rubber channel the rubber tore instead of just separating at the glue line like everything else I tried.
Application procedure:
-Apply primer to elastomer.
-Let dry for 30 minutes.
-Scuff aluminum and clean with MEK.
-Fit channel to aluminum.
-Run thin bead on between rubber and aluminum. I applied adhesive to only one side.
-Tape down to aluminum.
-Cure over night.
Hope this helps someone...
John
RV-8 819WB
In fiberglass ****...