White, Zinsser Mold Blocking Primer Spray-287512, 13 oz
White, Zinsser Mold Blocking Primer Spray-287512, 13 oz
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White, Zinsser Mold Blocking Primer Spray-287512, 13 oz

4.5 stars out of 409 reviews
(4.5)|
409 ratings
Size:13 oz Spray
Actual Color:White
selected, White
Count Per Pack:1

Key item features

  • Mold Elimination: EPA-registered primer effectively kills mold, mildew, fungi, and odor-causing bacteria on contact.
  • Surface Application: Works on both interior and exterior non-porous surfaces, including bathrooms, basements, and industrial spaces.
  • Direct Application: Allows direct application over existing mold without requiring extensive pre-cleaning of the surface.
  • Protective Barrier: Creates a protective barrier on the paint film to prevent future mold growth.
  • Quick Drying: Dries quickly, enabling topcoat application within one hour of priming.
  • Versatile Compatibility: Compatible with any topcoat, and especially effective when paired with Zinsser Perma-White.
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Current price is $11.9992.2 ¢/oz
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Customer ratings & reviews

4.5 out of 5 stars
stars409 ratings133 reviews
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Reviews summary

Pros
  • : Leaves surfaces looking great.
  • : Provides effective coverage over imperfections.
  • : Covers mold and porous surfaces.
  • : Has a relatively weak or neutral odor.
  • : Prevents growth on surfaces.
Neutral
  • : Can be uneven, but often covers well.
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Showing 1-3 of 133 reviews

Jun 13, 2025
Korinne
Item details
Size: Quart
Color: White
Count per pack: 1
5 out of 5 stars review

Verified Purchase

This paint far exceeded any expectations I had. the coverage is outstanding, i used this on a bathroom vanity and one coat was plenty and hid the paint underneath completely. It worked so well i was able to use it for multiple projects around the house, with a minimum of two coats of paint, with some to spare.

Helpful?3H2RYIKX3N64155859399
Aug 6, 2025
anonymous
Top Reviewer
Item details
Size: Quart
Color: White
Count per pack: 1
5 out of 5 stars review

Verified Purchase

Trusted brand

I have used Zinsser Primers for decades %26 they always have work as expected. Zinsser primers are easy to use, the stain coverage is good, etc. Make sure you read %26 follow the directions %26 you won't have a problem. I bought the Mold Killing formula this time because I have a few closets on the outside walls that have some superficial mold on the corners after our cold winter combined with higher humidity in the house. I don't expect any issues with the mold coming back or recurring staining now that I have used the mold killing primer. I don't usually have mold issues, but had some work done %26 the air exchange wasn't set up completely accurate for the changes made. I don't expect any more mold issues either. I have never had old stains or paint colors come through the Zinsser primers in the past either. I definitely recommend any of the Zinsser primers %26 their other products.

Helpful?3H2RYIKX3N64155859399
Sep 3, 2025
WalmartCustomer
Item details
Size: 13 oz Spray
Color: White
Count per pack: 1
5 out of 5 stars review

Verified Purchase

it covered beautifully with the existing ceiling, although it was in a bathroom with no natural light. BUT it covered and matched very well my ceiling in my condo at the beach. wish there was a way to collect the spray particles that fall all around. Otherwise i like the product a lot!

Incentivized Review
Helpful?3H2RYIKX3N64155859399