It is two tubes side by side. You need to buy the special caulking gun, which can be fairly expensive.....our price was $140 but the list price was about double that. Of course, you can buy them off ebay for about half that if you don't mind waiting a few weeks. The tubes come with a pair of mixing nozzles. You discard the nozzle after each use (although you leave it on just to seal the tube until you use it again, then you place on a new mixing nozzle. The nozzle swirls the two parts of the epoxy together. It comes out a grey colour, and as it sets, changes to a purplish Hugh. You have a few hours before it starts to set, so plenty of clamping time. I applied a bead to both surfaces. It is actually fairly thin, and will run a little. As it sets, I ran a paper towel to absorb up the excess, and also worked it in the seams as a seam sealer. You can weld an inch away form it, but if you get too close it will splatter.
The next day, when everything had hardened, I sanded some of the excess, then brushed POR-15 over the seams as there still would have been bare metal.
While I had my edges reasonable flat, I was working with used panels, so there was bound to be a little distortion. Add to that the two panels were off vehicles that were made 30 years apart....fortunately there seemed to be very little revisions to this area.
I can see me using this stuff again. Although my MiG welding didn't blow any holes thru the areas I did weld, it does not waterproof the seams...this stuff does.
Yes, I have plenty of projects at home, but in the evening, by the time I have supper, and get the wood furnace running in the shop, I am just about out of time. My own shop time is mostly on the weekends.
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