Not sure if this question goes here or in the door forum, but will try here.
I am replacing the old birch in our door and noticed there is a hole in the aluminum along one edge. Also there is a crack in the edge where the aluminum folds around the birch panel.
I am not sure how to fix these. I was thinking about putting the door all back together and then basically using JB weld to fill in the cracks that remain. Will this be strong enough or will it crack eventually?
Post by universalexports on Jan 13, 2013 19:57:12 GMT -5
the issue is with different metals expansion rate at different temperatures, this can cause the repair to crack or brake off, there are a few different aluminum repair kits, but i havent done enough research yet to recommend one. I do know several have used JB weld on aluminum boats with good results.
You might try waterproofing tape on the back side of the metal. When the door is finished, use Geocel gutter seal. It is silver, flexible and matches the aluminum very well. Also, check the fit of the door. If it's rubbing on the frame metal, the holes will open up again...
I usually put on a thick 3M aluminum tape behind hole. If hole/crack is big enough (over 1/4") I use fiberglass reinforced auto body filler. Be sure to sand smooth between 20 min and 30 min. If you wait longer it will get harder to sand. DO NOT wait 24 hours. You'll be sanding for a week with a pile of sand paper used! Once smooth follow up with ultra feather light (no fiberglass) auto finish filler. Wet sand smooth. Only get so hard, can sand the next day.
Same as others stated on fitting door to frame for no rubs. Always more than one way to skin a cat so to speak. I have used in past on everything and even have a friend who repairs cracks in his basement with it! LOL Only reason I use it, it's for metal and is always exposed to extreme outdoor elements on autos. Plus I always have gallon cans of the stuff handy from doing body work on cars.