If you're going to prime it, why not just start off with Kilz, not the water based, but the shellac based version? Would save a step, no?
Rennie, all the Kilz I found in stock anywhere stated "Somewhere" in the fine print about water content, (or alluded to it), but I tried two kinds I had and they both flaked the OSB.
GOOD NEWS/"Partial Success": When I went to the Kelly Moore store yesterday, they REALLY did have Sealcoat in Quarts, AND not just one but several quarts in stock. It seems a little expensive though at $13 + /qt including tax, hmm....that would be $52/gal.....about 2 1/2 times as much as I paid for a GALLON of Zinssers Shellac at the Borg).)
They DID NOT have any in Gallons though.
Now for the Fun Kicker,....... As I was talking with the sales girl at the checkout counter the mgr came over so I asked him about ordering a gallon of it. He said that they could order it, but would have to make a minimum order of 4 gallons, then he got a quizzical look on his face and said, wait a minute, I want to check something and left. When he came back, he said I thought I remembered something back thee a while ago, and when I checked just now, we have "THREE", 5 gal buckets of it in the back room, would you be interested? I told him I didn't need anywhere near that much, but for curiosity I said how old is it, and he said "I really don't know, it's been there, uh,.... for a while"...... I said I"ll pass.
I really can't imagine why they would have stocked 5 gal buckets of the stuff, but not any in the 1 gal size, since he said all the Cabinet makers and Contractors around here just shoot Laquer..
Anyhow, I got a quart to try, and if it works OK I can go get more even if it is more expensive by the quart, because the whole batch in stock was dated 08/21/08, so it should be fresh enough to work.
(Now if my knee and ankle will just improve enough that I can get up on the ladder and scaffold to finish that section of the framing and insulation,
I can give it a GO and hope it works like I think it will.)
Well that's Progress at least.