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I used a Graco ProX7 Hi-Boy airless sprayer set to 3000 psi (max) to paint ceilings in a rental property. Used Kilz ceiling paint from Home Depot which supposedly dries flat white. I overlapped roughly 50% on each pass. Not sure what I did wrong. Unlike my primary residence paint job, I did not back roll on this rental property and would like to find a technique where I can avoid back rolling ceilings as I've seen from painters on YouTube.

Initially, I thought the streaks were original paint showing through from under the Kilz so did a second coat which did not help. In the past, I've sprayed smooth wooden doors with great results after 3 coats of Behr semi gloss white so I feel comfortable using this sprayer. Also, this isn't a case where the tip was clogged or the pressure was too low giving those signature "tails."

Lap Marks Lap Marks 2

  • What type of Kilz? Kilz Original? Kilz 2? Kilz Max? – Harper May 16 '18 at 16:40
  • It was Kilz Interior Stainblocking Ceiling Paint and Primer. Model no. 68101. – Colemp May 16 '18 at 16:49
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    Has it had a day to dry? Just because some of the surface dries to tack-free quickly, does not mean all of it is done drying, and of course the overlapped areas will dry slower. – Harper May 16 '18 at 16:55
  • Sprayed 2nd coat after an hour, when it was dry to the touch. Guess I should have waited a day then to let it completely dry if that will solve my problem. – Colemp May 16 '18 at 19:36
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    On top of everything else white can be tough, I put lighter coats it looks like your spacing is really close if you can't back off a bit I think you will need to back roll. – Ed Beal May 17 '18 at 0:03

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