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Old 09-04-2020, 09:28 PM   #50
Roostre
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Join Date: Dec 2018
Location: St. James, MN
Posts: 166
Re: Roostre's 1967 C20

I resealed my drip rail tonight. Overall it went pretty well. I used 3M 08307. It has an 8 minute work time, 15 minute paint time, and 1 hour cure time. It's like squeezing syrup from a caulk gun into your drip rail. It comes in a 200mL 2 part tube, and i was able to do my entire rail with just a little left over.

First, I taped the body below my drip rails behind the doors on either side of the cab because I figured this stuff would run down the vertical part of the rails, and i suspected it would be a pain to try to clean up. I was right on both counts!

I then cleaned the rail with some 3M cleaner I had. After that, I went to town squeezing the sealer into the rail. I started in the center of the windshield and worked my way out until I was about 3/4 of the way down the vertical part. I then went to the other side and repeated. I worked in kind of a small Z pattern that seemed to work well. The instructions say to keep the application tip submerged in the sealer to limit the amount of air bubbles in the final product. This is a very important tidbit.

As it cured, I watched for any thicker gaps due to the after market roof skin, and filled them in with a little more sealer as they opened up.

As it got sticky and stopped flowing (about 6-7 minutes), I used a utility knife and cut it where it ran out of the bottom of the vertical part of the rail and pulled my tape. I don't think it would be a good idea to leave the tape on until it cures completely.

All in all, it came out well. Enough story, on to the pictures!
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Last edited by Roostre; 09-04-2020 at 09:47 PM.
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