Ratings & Reviews for Zinsser Mold Killing Half Pallet Interior/Exterior Multi-purpose Water-based Wall and Ceiling Primer ( 5-gallon )
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this mold-killing primer for its exceptional effectiveness, with most reporting visible mold elimination after a single coat that doesn't return—even in bathrooms and basements. Reviewers highlight smooth application, quick drying, and excellent coverage that often eliminates the need for multiple topcoats. Many note improved mold allergies and appreciate that it works directly over existing mold without complete removal first. While the odor is noticeable, most find it tolerable compared to harsh alternatives. A few mention adhesion issues on certain surfaces or wish for smaller sizes, but overall customers consider it a reliable, time-saving solution.
Customer review summary generated by AI, including incentivized reviews.Great product.
Would RecommendCovers well.
From Mold Killing Interior_SLASH_Exterior Multi-purpose Water-based Wall and Ceiling Primer ( 1-gallon ) Verified Purchaser
Expensive but worth it
Used this in the crawl space to hit some problematic spots and it went on thick with one coat and seems to have done the job well.
From Mold Killing Interior_SLASH_Exterior Multi-purpose Water-based Wall and Ceiling Primer ( 1-gallon ) Verified Purchaser
Easy to handle
Would RecommendIt really covers any stain or particles on drywall
From Mold Killing Interior_SLASH_Exterior Multi-purpose Water-based Wall and Ceiling Primer ( 1-gallon ) Verified Purchaser
Great product
Would RecommendGreat for use in bathroom before repainting. Quality product.
From Mold Killing Interior_SLASH_Exterior Multi-purpose Water-based Wall and Ceiling Primer ( 1-gallon ) Verified Purchaser
Mold Killer
Would RecommendGreat product I've used this many time, although little pricey
From Mold Killing Interior_SLASH_Exterior Multi-purpose Water-based Wall and Ceiling Primer ( 1-gallon ) Verified Purchaser
Living in fear ain’t much of a living.
Would RecommendUsed on all areas of the house with traces of mold.
From Mold Killing Interior_SLASH_Exterior Multi-purpose Water-based Wall and Ceiling Primer ( 1-gallon ) Verified Purchaser
Mold killing primer.
Would RecommendThis product did just what I expected it to do. We had some surface mold and it worked perfectly
From Mold Killing Interior_SLASH_Exterior Multi-purpose Water-based Wall and Ceiling Primer ( 1-gallon ) Verified Purchaser
Mold came back
Would Not RecommendApplied 3 heavy coats over existing mold to an already sealed interior basement foundation. Went on easy but mold came through in a matter of days. Wouldn’t use again
From Mold Killing Interior_SLASH_Exterior Multi-purpose Water-based Wall and Ceiling Primer ( 1-gallon )
Is as it states
Would RecommendThis is an amazing product...in a crawl space we had mildew/mold over an 800sqft of stained sheathing....treated with intense ozone, then simply painted over without brushing off, and it covered in one coat....truly meets all of the advertising from the company....couldn't be more pleased
From Mold Killing Interior_SLASH_Exterior Multi-purpose Water-based Wall and Ceiling Primer ( 1-gallon ) Verified Purchaser
We understand your frustration, Justin. Please keep in mind that the Rust-Oleum Zinsser Mold Killing Primer needs to be applied to a non-porous surfa...