3M 08307 Self-Leveling Seam Sealer Cartridge - 200 ml

Worked its purpose

I used this for sealing drip rails on a Ranger... very pleased with the results. It does self level quickly and evenly and looks great. I used about 1/2 of the 200ml tube for both sides and probably put in quite a bit more than the factory did...but one tube would easily do both drip rails on a full size truck I think. Since it is self levelling you must dam up the ends with masking tape and make sure the surface itself is level... and plan to grind out some of it on the ends, easily done with a small file. Overnight cure is better, the data sheet says paintable within a short period but it was still a bit tacky after an hour... rock hard the next day and very easy to finish the ends.

Works awesome! Sets up extremely fast! If you have tape down, remove quickly. Within 3 minutes this stuff was level and setting up. Flows great down drip rails on cars and trucks. I just did the drip rail gutter on a 1972 GMC C15 and the rear section is near vertical. Not too runny and easy to control. I bought 2 tubes but to do an old truck like this, if I would have been a little more sparing I would have only needed one. Highly recommended!

This sealer flows out smooth and sets up in a few minutes.

First Had it done at a shop where they did not properly clean it out and used very little of the cheaper grey stuff and it leaked again.This stuff worked Great! to fix my roof leak on Honda Odyssey 2004. Needed 2.3 cartridges to finish job.Used the rest to seal my Jeep rain gutters. Did them both at the same time as this stuff dries quickly.Must prep everything beforehand. I sanded & wire-wheeled the rain channel then used 2k epoxy primer , then seam-sealer.Looks great and professional.