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Your cart is empty.4.6 out of 5 stars
- #14,789 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
- #64 in Adhesive Caulk
- #99 in Industrial Sealants
- #7,975 in Hardware
"Dynatron™ Auto Seam Sealer Caulk 550 is a fast-skinning, permanently elastic, non-sagging formulation that is brushable and paintable. This sealer provides excellent adhesion to bare metal or painted surfaces and is a non-staining, all-purpose autobody joint and seam sealer. Cure Time: 24 Hours Handling Time: 10-20 Minutes Work Time: 10 Minutes".
Jim
Reviewed in the United States on January 28, 2025
Works great
Cmj
Reviewed in the United States on January 24, 2025
Works well
a
Reviewed in the United States on March 15, 2024
Great Seam Sealer, applies smoothly, odor is not too bad at all. It does have fibrous content in it, so it can only be smoothed out so much. It dries very quickly too, so you do have to work fast. Overall it seems to do a great job
John
Reviewed in the United States on February 27, 2024
It is a high-quality sealant. it remains flexible and dries well. It flows easily from the cartridge and is workable. The excess peels are easily too.
Troy
Reviewed in the United States on November 13, 2024
Strong hold, does have a strong odor when applied, clears up when dried.
R.A.
Reviewed in the United States on April 18, 2024
Used this to seal some weld seams on my truck that were leaking. Applies with good consistency, dries pretty quick and can be painted to match if you wish. Does the job well!
Jones
Reviewed in the United States on October 30, 2023
USED IN RESTORATION WORK ON CLASSIC CAR, REMOVED OLD SEALER FROM WELD AND BOLT TOGETHER SEAMS ON FENDERS AND TRUNK WITH SCRAPPER AND WIRE BRUSHING.WENT ON SMOOTHLY AND FILLED SEAMS USING HAND CALKING GUN, NO PROBLEMS.NO LEAKS TO WORRY ABOUT FOR DECADES TO COME.3M HAS A GREAT TRACK RECORD YOU CAN TRUST.
Vance N
Reviewed in the United States on August 15, 2021
used this to reseal a A pillar leak for Honda accord (which is known for this). If you have water leaking in from the A pillar but your door seals (both door and body/door) are both good....then likely you have the same problem. You remove the roof to windshield trim and underneath is your leak. Cleanit out very well, Pump a good line to seal it all down to about mid-windshield and reinstall trim. Depending on amount of beading you put, it can take a few hours to dry.tip: use a spray bottle of slightly soapy dishdet water to help keep this off your finger. It is putty-like but just as sticky as caulk. I found beading it and then spraying and tapping it down with my finger was easier than doing the caulk spread.
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