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Mold and Mildew 1 Gal. White Water Based Interior and Exterior Primer, Sealer and Stain-Blocker

$37.98
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  • Mold & mildew resistant primer film for moisture-prone spaces
  • EPA-registered ingredient prevents mold/mildew on primed surface
  • High-hiding stain blocker blocks medium to heavy stains
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Product Overview

KILZ primers help to seal surfaces, enhance adhesion, stain and odor block, hide marks and colors and more

A little primer investment goes a long way

Priming helps ensure a better quality finish that will last by addressing surface problems prior to painting

KILZ PRIMERS Logo

KILZ is a trusted brand by pros and DIY’ers for over 45 years

KILZ has water-based and oil-based primers to help in different ways

KILZ Interior, Interior/Exterior, and Low Odor Primer cans on dropcloth

KILZ primers can handle your projects

From KILZ 2 ALL-PURPOSE to legacy oil-based KILZ ORIGINAL primers to our specialty products, there is a Kilz primer for you.

Apply KILZ Primer on exterior wall with sprayer

Seals porous surfaces

Sealing the surface helps achieve a uniform professional quality finish using less coats of paint

Lifestyle bedroom with wall paint in black and white paint

Hides scuffs, stains and previous colors

Our high hiding primers hide previous colors well; making them ideal for color change projects

KILZ Primer being applied covering stains on wall

Powerful stain blocking

Our stain blocking primers are proven performers when it comes to blocking stains to prevent leaching through the topcoat

Lifestyle kitchen using KILZ Primer and painted with blue cabinets

Excellent adhesion

Excellent adhesion to the surface and also to the topcoat paint helps ensure a longer lasting quality finish

Seal unprimed drywall for best results

Drywall

Most pros apply primer to drywall to seal the surface and ensure a uniform finish

New cabinet with KILZ Primer being brushed on

Wood

Primer fills the grain in the wood helping to smooth out the finish

Unpainted brick wall with KILZ Primer being rolled on

Brick

Painting over brick is a popular alternative to replacing it. Priming first before painting helps make it look its best

Applying KILZ Primer with roller to unpainted masonry wall

Masonry

Priming with alkali-resistant primer helps solve adhesion problems caused by high pH levels in some masonry

Applying Kilz Primer with roller to plaster wall

Plaster/Stucco

Lime from plaster can cause stains to bleed through the topcoat. Stucco may absorb moisture from the topcoat discoloring it.

Applying Kilz Primer with brush to door

Other Surfaces

KILZ has multi-use, multi-surface primers and specialty primers that solve specific problems including hard to paint surfaces

Specially formulated to prevent mildew (and potentially mold) from growing on the primed surface before paint is applied, KILZ Mold and Mildew Primer contains active ingredients that are registered with the Environmental Protection Agency. This mold and mildew resistant film protects the primer film, sanitizes the surface it is applied to against fungi organisms and helps ensure a fungi-free primed surface for painting. KILZ Mold and Mildew Primer blocks stains such as markers, lipstick, food stains, smoke, nicotine, grease and more. This primer has a thicker consistency compared to most non high build primers which helps achieve a more uniform finish. The primer also helps paint bond to multiple surfaces and ensure years of topcoat integrity. Use over and under alkyd, oil and water based paints, this primer dries quickly, has a low odor and is environmentally conscious with little to no volatile organic compounds.
  • Contains EPA-registered mildewcide
  • Medium to heavy stain blocker
  • Excellent adhesion
  • Seals porous surfaces
  • Apply topcoat after using KILZ Primers
  • Very low VOC formula
  • Fast dry - paint in 1 hour or less
  • Easy soap and water clean-up
  • Click here to shop drywall sheets to complete your project



  • California residents

Additional Resources

From the Manufacturer

Compare Similar Primers

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Mold and Mildew 1 Gal. White Water Based Interior and Exterior Primer, Sealer and Stain-Blocker
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BrandKILZKILZKILZ RESTORATIONBEHR
NameMold and Mildew 1 Gal. White Water Based Interior and Exterior Primer, Sealer and Stain-BlockerOriginal 1 gal. White Oil-Based Low-VOC Interior and Exterior Primer, Sealer, and Stain Blocker1 Gal. White Interior Primer, Sealer, and Stain Blocker1 gal. White Interior/Exterior Metal Primer
Price
$3798
$3817
$4498
$5498
Ratings
(668)
(712)
(888)
(27)
Paint/Stain/Waterproofer Product TypeGeneral PurposeGeneral PurposeGeneral PurposeGeneral Purpose
Primer PurposeColor Changing,Mold, Mildew & Water Damage,Odor Blocking,Sealant,Stain BlockingColor Changing,Grease Cover,Rust-Resistant,Sealant,Smoke Cover,Stain BlockingColor Changing,Odor Blocking,Sealant,Stain BlockingRust-Resistant
Container Size1 Gallon1 Gallon1 Gallon1 Gallon
SheenFlat/MatteFlat/MatteFlat/MatteFlat/Matte
Surface Material UseBrick,Drywall,Masonry,Metal,Plaster,Stucco,WoodBrick,Drywall,Masonry,Metal,Plaster,Stucco,WoodCeiling,Concrete/Brick/Masonry/Stone,Drywall,Metal,Plaster,WoodGalvanized Metal,Metal
Paint/Stain FeaturesFast Drying,Low Odor,Mildew Resistant,Mold Resistant,Stain ResistantMildew Resistant,Sealer,Stain ResistantFast Drying,Low Odor,Sealer,Tintable,Top Coat RequiredFast Drying,Rust Preventative,Tintable,Top Coat Required
Application MethodBrush,Paint Sprayer,RollerBrush,Paint Sprayer,RollerBrush,Paint Sprayer,RollerBrush,Paint Sprayer,Roller
THD SO SKU 1000201749
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Customer Reviews

  • 4.8
    out of 670 reviews
  • 97%recommend this product
Filter by:
Showing 1-10 of 670 reviews
Best Ever!
[This review was collected as part of a promotion.] Moved a dresser in our bedroom that was against an outer wall. From the floor a few inches up there was mold that we had no idea it was even there. Cleaned the wall and let it completely dry for a week before applying Kilz Mold & Mildew. The 1st coat covered everything entirely. Let it dry overnight and applied a 2nd coat the next day. Never knew anything was ever there! Thanks Kilz!
by
    • Recommended
    Easy to use. Worked just as I needed it to.
    [This review was collected as part of a promotion.] I used this product on raw drywall which had extensive black mold. Two coats later it was covered and sealed.
    by
      • Recommended
      Fantastic coverage and great color!
      Fantastic coverage and great color! We had to use it on a textured bathroom ceiling. No idea why the previous owners made it textured. We chipped away the peeling paint and applied the Kilz (Mold and Mildew). It looks amazing now!
      by
      • Verified Purchase
      • Recommended
      Worked perfect for our older RV remodel project.
      [This review was collected as part of a promotion.] I bought this to help with some mildew and Oder issues while remodeling our older RV I believe was stored in a barn. It worked wonderfully and made the painting project go much quickly with less coats of paint.
      by
        • Recommended
        Works Great on old wood
        [This review was collected as part of a promotion.] We bought this to use inside a 1980 camper to cover up old smelly wood, old paneling and also to protect it from any previous water damage. We are so glad this product exists.
        by
          • Recommended
          Works the best
          [This review was collected as part of a promotion.] I was painting my oak bathroom cabinets, kilz kitchen an bath primer was the only primer that adhered to the cabinet doors and frame, which made the white base coat to flow easy and cover great.
          by
            • Recommended
            Kill Mold and Mildew interior/exterior primer work
            [This review was collected as part of a promotion.] I have used this product on mold in our basement wall and also on sub-flooring in several spots inside our renovation project. It covers great, dries quickly, and there is little odor.
            by
              • Recommended
              Great Results in Our AC Closets
              [This review was collected as part of a promotion.] I have a client with over 300 units in South Florida, with all the humidity and rain mold can build up quickly. We started implementing as part of our schedule maintenance to paint all AC closets with Kilz Mold & Mildew Primer and the results have been great!
              by
                • Recommended
                Did not like this
                With this many positive reviews it seemed great before I started to paint. Its not sticky at all over joint compound. I cleaned the walls very thoroughly before. See picture. The coverage is ok but It’s the worst primer I’ve painted with.
                by
                Response from KILZProblemSolverAug 19, 2021
                Hi Andre - Thank you for your review. I'm sorry to hear that this primer isn't sticking to the joint compound on your walls. Based on your picture, it looks like the primer may be pulling off the surface in these areas. To fix the finish, I recommend adding up to 4 oz. of water per gallon to your primer, mixing it in thoroughly, then re-priming. For further assistance with your project, please feel free to reach out to us directly. We'd be happy to help. - Sara Kilz
                  Awesome coverage
                  [This review was collected as part of a promotion.] I just used this on the out side of my home its a great product my home is 130 years old and I'm repainting it and killz is the only primers I trust i know I will not have to repaint for years to come
                  by
                    • Recommended
                    Showing 1-10 of 670 reviews