The project is a bedroom ceiling, approximately 160sq ft. Originally it was white, some sheen to it, so possibly egg shell or semi-gloss, very clean and in good condition. Without priming first, we used a brand new roller and re-painted it with Behr paint, flat finish, custom-mixed for color match by Home Depot. We got excellent coverage with the first coat, so no white showing through at all - but badly streaked showing every single roller pass. The next day, applied a second coat in the opposite direction from the first. Still streaked. The next day, applied a THIRD coat, again opposite direction, same results. Now a total of nearly two gallons applied. Took the paint back to Home Depot - they said it had been mixed wrong, too much titanium white. They suggested a pre-mixed Behr paint close to the color we wanted - gave it to us gratis. Bought another new roller to applyl with. After a nice, fairly heavy coat with the new paint, we got excellent coverage, but still streaking! We now have nearly three gallons of paint on this ceiling - what's causing the streaking? Since we now have a heavy coat of the new paint as a base coat will priming make any difference at this point? Home Depot said we should not need to prime over the previous, bad paint. On the Behr website, I read that priming is for "adhesion and durability" or to cover un-coated, oil-based or stained areas. None of these applied. Any suggestions? Thanks!
[This message has been edited by Ellery (edited January 29, 2004).]