exterior body sealer

[Guest jjmorrse]

I am looking at body seam sealers for my driprails, etc.

What is the consensus on what works well?

[grey beard]

Hi Jim,

Not exactly sure of your sealer applicaion. Are you sealing weld seams, or just sealing drip rail gaps and small spots? For the latter, 3M Drip Check Sealer is best. It dries hard in a few hours and can be painted, yet stays semi flexible. Most body supply shops carry it.

If you need to get serious about sealing seams or body repairs from the inside to make them totally moisture proof, best bet I've found is DuraGlass. Looks like body filler, but dries like iron and is quite hard to work with anything except a grinder. Autobody 101.com web site recommends this as the best moisture and seam sealer in the industry. When I welded new metal into my cab floor, I sealed all the seams aferwards with this stuff. I found it is easy to work down when it dries with a large cup brush on a 7 inch grinder. Sure makes a mess. Then I undercoat over top of this with bed liner - my favorite undercoating. JMHO:)

[Plymouthy Adams]

I have aways liked 3M seam sealer...you can get this in a caulk tube also. Another product out there is by the folks of POR15 and is a tube that you place in the crack..comes with all the hype and glory of their other products...so you do have a chioce...to use the 3M product I would only feel confortable using it after cleaning, acid etching..priming then seal and seal the sealer with a good laquer based primer.

[250440ND]

It's tough to beat 3M Ultrapro seam sealer. I own a Bodyshop and have used it for years and never had a redo with this stuff. You can shape it any way you want by dippin you finger in a little reducer and smoothing it out to any appearance your looking for. I've used some of duramix sealer also, seams to do the job.

[1949P17BC]

I too used the 3M product, easy to get, install and clean up.

[Guest jjmorrse]

thanks!!!

[david lazarus]

Jim Great advice above, I had my interior stripped out and one night put lights under the car, then went looking for all the small pin holes/cracks/gaps with the body sealer. There were lots !! Worth the 30 minutes this takes to keep the water out. I also went over the seams with fish oil (deodorised) to reseal them, and finally went looking for the drain holes in the doors.

Dave