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 419 reviews
(4.5)|
419 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 $18.97$1.46/oz
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Customer ratings & reviews

4.5 out of 5 stars
stars419 ratings133 reviews
How item rating is calculated

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 affordable, but also steep for some users.
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Showing 1-3 of 133 reviews

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
Apr 24, 2025
anonymous
Top Reviewer
Item details
Size: 13 oz Spray
Color: White
Count per pack: 6
5 out of 5 stars review

Verified Purchase

good for tight spaces/corners

although the title of the item says mold killer, it is not fungicidal in the formula; unlike in the normal gallon paint buckets. just something to keep in mind. if you for sure want to kill the mold, go with the mold killing gallon paint buckets for this brand.

Helpful?3H2RYIKX3N64155859399
Dec 22, 2025
WalmartCustomer
Top Reviewer
Item details
Size: Quart
Color: White
Count per pack: 1
5 out of 5 stars review

Verified Purchase

It's the only paint primer that actually can get painted right over mold and kills it other brands. You have to pre-treat the mold first and **** it then paint in primer to stop any regrowth. This isn't all in one.

Incentivized Review
Helpful?3H2RYIKX3N64155859399

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