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Interior High hiding Oil-based Wall and Ceiling Primer ( 12-oz )

Ratings & Reviews for ProBlock Interior High hiding Oil-based Wall and Ceiling Primer ( 12-oz )

4.7
197
Review
 4.7 out of 5
197 Reviews

1 Star
0%

93% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this primer for exceptional stain-blocking performance, rapid drying in 30 minutes or less, and outstanding one-coat coverage on challenging surfaces like smoke-stained ceilings and water-damaged walls. The aerosol spray delivers smooth, even application with minimal overspray and excellent adhesion to wood, drywall, and painted surfaces. Many note it completely hides tough stains where other primers failed, allowing same-day project completion. A few mention strong oil-based odor requiring ventilation, and one reported occasional overspray on delicate items. Overall, reviewers consider it a professional-grade, time-saving solution that delivers reliable, durable results.

Customer review summary generated by AI, including incentivized reviews.
197 Customer Reviews

Paint over poly

Would Recommend

Worked well to prime poly cabinets for painting

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Dries quick

Would Recommend

Had to prep walls after stripping wallpaper

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It’s great stuff

Would Recommend
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Great Stuff!

Would Recommend

After much research, I settled on this product in a preventative effort to waterproof an area where I’m placing a bathing/grooming spa for my dogs. It was not overly thick/thin and the application using primarily a roller (brushed trim work) was smooth. It had that strong “oil-based” odor. I didn’t use a respirator, but did open all relative windows for adequate ventilation. Once dried, the finish was smooth, yet undeniably tough. Afterwards, in accordance with the directions, I applied an oil-...

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Paint

Would Recommend

Covered the smell well

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Works good

Would Recommend

Easy of use but expensive

May 16, 2026
Verified Purchaser
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That's it's Kiltz just under another name

Would Recommend

It absolutely does wonderfully! There's nothing I didn't like about it

May 13, 2026
Verified Purchaser
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Excellent coverage on old bare drywall

Would Recommend

What a difference oil-based primer makes! this stuff successfully sealed and primed all of the bare 1970s drywall in my garage. I needed oil-based because the tannins in the old brown paper covering the sheet rock would seep through a latex primer. There were also some spots of black paint and water stains that it covered. With just one coat it was satisfactory. It goes on thick enough that a lot of the old dings in the drywall didn’t require patching. It also worked great to prep a plywood wall...

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Good Deal

Would Recommend
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Just as good as the well known brand of primer!

Would Recommend

Great coverage. I had uneven coloring from wear on my ceiling. This paint covered it in one coat!

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Great for a room with Ventilation

Would Recommend

This product had amazing coverage but was awful with the odor and brush clean up was impossible…

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Good plaster seal

Would Recommend

Thick and rolls well

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A great product

[This review was collected as part of a promotion.] I like this paint alot, we just bought a home with tons of roof leak stains and smoke stains. This had Def helped covering up the smell and the stains. The only this is it does spray down on you but you have that with anything I feel like

March 27, 2026

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