Ok Mitch,
Here are my results. In my humble opion..........its a big mistake to use a light colored seam sealer if your going to try and cover with Black bedliner. My first coat did really well, but looked semi transparent over the beige color Fusor 800 DTM seal sealer, Next time will use the black seam sealer for sure (803 DTM). By the time you get light colored seam sealers covered with Black Bedliner, I think you have used more product than necessary and if you looking for a softer smoother texture, trying to cover light colored seam sealer will fight you.
Stir Agressively, they are not joking. I went the three minutes, but it looked a little thick pouring it out of the mixing cup to the air gun canister, so I stirred it longer and harder. It got thinner just like it says in the tech manual. Using the product unreduced it got pretty thick by the time I got to the last quarter (mixing one quart at a time). This problem appeared to increase the less thinner you added, non reduced being the most obvious. I had to up the air pressure and keep adjusting the nozzle out to get the product out of the gun. This could be I did not stir it long enough?
Overall, very satisfied with the results. Heavier than I wanted but that was becasue I used it to cover a light colored seam sealer. All is not lost. Its applied heavier than I wanted, but it was my first try. For protection, strength is better if its thicker (per tech support). My only concern using Black Bedliner over Black seam sealer is: If you dont thin down the first coat or two, you will have a very fine pattern that will be extremely difficult to see if you have full coverage. I think thats why they want it thinned down the first couple of coats, to get 100 per cent coverage. THEN texture with unreduced material to get your desired texture. If you just start with a light texture, it will look good but you may not have full coverage.
For what its worth, that what I have to offer anyone doing this for the first time.