Polyurethane Seam Sealer Automotive Compound Kit - Durable & Flexible Auto Body Filler - Seam & Joint Compound for Bare, Primed or Painted Surfaces - Automotive Seam Sealer White - RV Roof Sealant

Did the job well, paint sticks to it and it’s already a nice bright whiye

Works as expected. Cut tip at correct angle and use caulking gun along seams. Cures fast and takes primer and topcoat fine. Can’t comment on sealing ability as car will never see rain anyway.

Better than some I've used

I gave this 4 instead of 5 stars because the true measure won’t be known until it sees a few years of weather. I will say that the application was very smooth, the application was great, easy to tool/smooth, firm but flexible when cured, and adheres very well to multiple surfaces.

This worked great sealing a hole in my camper, and cost a third of the 3M version. Very happy with the results and painted great!

I am restoring an old British sports car and had to replace an inner fender by cutting out spot welds and welding in a new inner fender. I wanted something to cover the welds and seams to keep any air and moisture out to eliminate future rust problems.This seam sealer was easy to use with a standard caulking gun and was spreadable with my finger to cover the areas I needed covered. It dried overnight and has taken the paint that I sprayed on later. I am going to use it to glue some front body panels on as well. This will keep me from having to weld them on which can cause rusting between the panels.I would buy again.

Works like it is supposed to

Seemed to flow well and initial dry seemed okay until I painted the seams with RustOleum rattle can universal spray paint. The paint either reactivated the seam sealer or chemically reacted with it and now the top coat is sticky and has never dried even after 3 weeks inside the shop. Next project I used higher quality 3M Urethane (not Polyurethane like this product) and it works exactly like it should. Flexible, rubbery, not sticky at all after just several hours and certainly if left overnight.

Parfait pour arrêter la corrosion des bas portes de mon Silverado 2010🥰, le sealant d’origine décolle et la rouille s’installe. Avec ce formidable produit, ça fait 30 jours qu’il est en place, j’habite un chemin terre corrosif alcalin et aucune rouille n’est réapparu sur mes portes. Fantastique

Seems great for the money for sure but I’m not sure how long it would last otherwise I would give it five stars. I was a little concerned when I saw the bottom of the tube. It was a pop top. I thought once you Open it you would have to use the whole tube but not so underneath the pop top there is a wooden marble not too sure what it’s for but I think it’s to help push the centre when you use a caulking gun anyway product works great. It dried really nice. Considering the cost of all the other products it was decent.