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Perma-Guard 5 gal. Clear Acrylic Mold & Mildew-Proof Interior Sealer

$163.93
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  • High performance sealer prevents mold/mildew growth on paint film
  • Tough, durable finish protects the surface from odor and moisture
  • Easy to apply, fast dry coating covers up to 2000 sq. ft.
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Product Details

Zinsser Perma-Guard 5-gal. Mold and Mildew Proof Acrylic Clear Interior Sealer is a high performance acrylic interior sealer uniquely formulated to protect interior surfaces while preventing mold and mildew growth on the coating film for five years. Antimicrobial - inhibits the growth of odor causing microbes on the coating film. Perma-Guard delivers outstanding adhesion, moisture resistance and easy soap and water cleanup.
  • For interior use on new or previously painted drywall, wood, metal and other related surfaces
  • Perma-Guard Mold and Mildew-Proof produces a tough, durable finish that withstands moisture and resists dirt pickup - protecting and restoring the soundness of new, aged or recoverable water damaged material against mold and moisture
  • Covers up to 2000 sq ft
  • Applies white, dries clear
  • Antimicrobial - inhibits the growth of odor causing microbes on the coating film (does not protect against food borne or disease-causing bacteria)
  • Dries to the touch in 30 minutes
  • Self-priming applies white and dries clear
  • Non-corrosive, 100% acrylic formula produces a durable, moisture resistant finish
  • Contains EPA registered mildews, Mold and Mildew proof
  • Clean up with soap and water
  • Online Price includes Paint Care fee in the following states: CA, CO, CT, MN, OR, RI, VT



  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

42Questions
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Q:Can this product be applied over expanded vinyl wallpaper to waterproof it/prevent mold for use in a bathroom?
by|Jan 6, 2023
1 Answer
Answer This Question

A:  We appreciate your interest, Emily! Rust-Oleum Zinsser Perma-Guard Clear Mold and Mildew-Proof Sealer is intended to be used over new or previously painted surfaces. We do not recommend it for use over wallpaper since it is a water-based coating, and it can react with the adhesive. This product is also not designed to be a water-proofing sealer. - Rust-Oleum Product Support 3

by|Jan 6, 2023
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    Q:Can you use this product to seal black mastic Floor adhesive
    by|Aug 29, 2022
    1 Answer
    Answer This Question

    A:  Thanks for reaching us, Dave. Mastic can be tricky for any coating to stick too properly. For this reason, we would recommend removal of the mastic prior to application of the Rust-Oleum Zinsser Perma-Guard Mold & Mildew Sealer. - Rust-Oleum Product Support 1

    by|Aug 29, 2022
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      Q:I have some baseboards and shelves in a few closets that had mildew on them. I cleaned them off using a fungicide but does this works like mold blocking/killing primer that Zinsser sells where mold or mildew can be directly coated to kill it?
      by|Aug 22, 2022
      1 Answer
      Answer This Question

      A:  Happy to help Hayden. Zinsser Perma-Guard Mold & Mildew-Proof Interior Sealer is a high performance acrylic interior sealer formulated to protect interior surfaces while preventing mold & mildew growth on the paint film. Zinsser Mold Killing Primer can be applied over mold and mildew, it kills the mold. Perma-Guard will not kill mold and mildew. https://www.homedepot.com/p/Zinsser-1-qt-Mold-Killing-Interior-Exterior-Primer-276087/304853961 - Rust-Oleum Product Support 6

      by|Aug 24, 2022
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        Q:Can this be used as sealer over black mastic residue on concrete slab?
        by|Jul 28, 2022
        1 Answer
        Answer This Question

        A:  Hi Brenda, thank you for reaching out! Our Zinsser Perma-Guard Mold & Mildew-Proof Interior Sealer is designed for use over a variety of bare and painted surfaces, however, we would not recommend applying it over mastic residue, since this adhesive might reactivate and cause performance issues. - Rust-Oleum Product Support 2

        by|Jul 29, 2022
          Showing 1-4 of 42
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          Customer Reviews

          3.7 out of 5
          (8)
          • 3.7
            out of 8 reviews
          • 50%recommend this product
          Filter by:
          Showing 1-8 of 8 reviews
          The dry time was/is exorbitant. It went on tacky and...
          The dry time was/is exorbitant. It went on tacky and would lift as the roller re applied leaving heavy and thin areas. The whiteness of the application product took 10 days to disappear. Because of the large area needing this product, we returned it.
          by
          Response from Rust-OleumSupportAug 29, 2022
          Oh no, not something we like to hear, Gary. Zinsser Perma-Guard Mold & Mildew Proof Interior Sealer dries to the touch in 30 minutes and can be recoated 2 hours after applying the first coat. Scrape resistance over glossy surfaces develops in 5 to 7 days. Do not scrub the new coating for seven days. - Rust-Oleum Product Support 6 Rustoleum
          • Verified Purchase
          This product was not as advertised. It was said that...
          This product was not as advertised. It was said that it dries clear but it does not. It left a white haze in several areas. I tried to sand it down but I couldn’t. I just have to deal with a white haze on my ceiling.
          by
          Response from Rust-OleumSupportMar 23, 2021
          That is not what we like to hear! It sounds like there may be some moisture trapped in the Rust-Oleum Zinsser Perma-Guard Interior Paint coating. We recommend trying to wipe the surface with denatured alcohol to draw out the moisture, which should hopefully clear things up. - Rust-Oleum Product Support 5 Rustoleum
          • Verified Purchase
          Used a paint sprayer , it did the job...
          Used a paint sprayer , it did the job
          by
          • Verified Purchase
          Nice application...
          Nice application
          by
          • Verified Purchase
          Easy to apply I sprayed my attic after I remeadiated...
          Easy to apply I sprayed my attic after I remeadiated the slight mold issue. New roof increased venting and a new bath vent better air circulation so the condensation problem solved. Use Zinaser Perma guard for added protection
          by
          • Verified Purchase
          5 Star Review
          Rating provided by a verified purchaser
          by
          • Verified Purchase
          DO NOT USE ON WOOD
          We ordered this because our wood walls are prone to mildew in the right conditions and we were tired of cleaning every October. It says you can use on wood, but DON'T. It does not dry clear, especially around knots in the wood. Now we have beams with big white splotches around the knots that look worse than the mildew did.
          by
          Response from Rust-OleumSupportOct 24, 2016
          Yikes, that’s not what we like to hear! Zinsser Perma-Guard Mold and Mildew-Proof Interior Sealer is suitable for use on new or previously painted wood. When using over wood knots it is recommended to seal them with a suitable shellac. Check out Zinsser Bulls Eye Shellac Traditional Finish and Sealer.
          http://www.homedepot.com/p/Zinsser-1-qt-Clear-Shellac-Traditional-Finish-and-Sealer-00304H/100203332 Rustoleum
          • Verified Purchase
          1 found this review helpful
          Worked as Advertised
          The product worked as described, and it took two coats to seal the old wood panel in my basement. Some areas are still a little chalky, but I am hopeful they will continue to dry clear as did most of the panels. I painted one day and waited until the next day to apply a second coat.
          by
          • DIY
          • Verified Purchase
          • Recommended
          2 found this review helpful
          Showing 1-8 of 8 reviews

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          Paint/Stain/Waterproofer Product TypeSealer Sealer
          Primer PurposeColor Changing,Odor Blocking,Stain BlockingDifficult SurfacesMold, Mildew & Water DamageColor Changing,Odor Blocking,Stain Blocking
          Container Size5 Gallon5 Gallon5 Gallon5 Gallon
          SheenFlat/MatteFlat/MatteFlat/MatteFlat/Matte
          Surface Material UseDrywallDrywallDrywallConcrete/Brick/Masonry/Stone,Drywall,Metal,Wood
          Paint/Stain FeaturesMildew Resistant,WaterproofSealerMildew ResistantSealer
          Application MethodBrush,Paint Sprayer,RollerBrush,Paint Sprayer,RollerBrush,Paint Sprayer,RollerBrush,Paint Sprayer,Roller
          Application SealerSealer
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