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3.5 oz. Waste Paint Hardener

$329
  • Hardens latex paint in minutes for easy curbside disposal
  • Hardens up to 2/3 Gal. paint
  • Dispose paint according to local regulations
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Product Details

Krud Kutter 3.5 oz. Waste Paint Hardener turns liquid latex paint solid for curbside disposal. Simple to use: add crystals, mix with paint and dispose once paint hardens. One scoop hardens up to 2 gal./3 gal. of latex paint and a 5 gal. pail will treat up to 100 gal. of paint.
  • Add crystals to excess latex based paint, stir until thick, let harden and dispose according to local regulations
  • Covers up to 2 gal./3 gal. of paint per packet
  • Absorbs moisture in latex paint leaving paint hardened for disposal according to local regulations
  • Ready and quick to use: simply pour and stir
  • Paint hardens in minutes
  • Can be used for latex oil-based paint spills, where the absorption rate of hardener is reduced
  • Read instructions completely prior to use
  • Return Policy

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

7Questions
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Q:Do you need to use more krud kutter on oil based paint? What texture is the paint supposed to be after the Hardner is added? I have some unknown or oil paint that I?ve added it to, latex paint turned chunky, the unknown paint still smooth & stir-able.
by|Aug 28, 2022
2 Answers
Answer This Question

A:  Happy to help, Jenn! Yes, oil-based paints will require the use of more Rust-Oleum Krud Kutter Waste Paint Hardener. This is because the absorption rate of hardener is reduced. - Rust-Oleum Product Support 3

by|Aug 30, 2022

    A:  No, I would not recommend. It didn't work very well for me.

    by|Nov 9, 2022
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    Q:Does this harden up 2 to 3 gallons of paint or does this harden up 2/3 of a gallon of paint? The website description does not clearly answer this
    by|Jun 8, 2022
    1 Answer
    Answer This Question

    A:  Happy to clear things up, Kathi! Each 3.5 ounce pouch of Rust-Oleum Krud Kutter Waste Paint Hardener treats up to ⅔ of a gallon. - Rust-Oleum Product Support 3

    by|Jun 9, 2022
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      Q:Will this work on Acrylic paints. The question was not answered.
      by|Oct 11, 2021
      1 Answer
      Answer This Question

      A:  Happy to help Gray. Rust-Oleum Krud Kutter Waste Paint Hardener is suitable for use with latex (acrylic) and oil based (alkyd) paints. - Rust-Oleum Product Support 6

      by|Jan 18, 2022
        1 found this answer helpful
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        Q:Will this work on water-based polyurethane?
        by|Apr 21, 2020
        1 Answer
        Answer This Question

        A:  We appreciate your interest, Jay! Rust-Oleum Kurd Kutter Waste Paint Hardener can be used with paints, stains, and varnishes! - Rust-Oleum Product Support 3

        by|Jan 18, 2022
          1 found this answer helpful
          Showing 1-4 of 7
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          Customer Reviews

          4.4 out of 5
          (36)
          • 4.4
            out of 36 reviews
          • 92%recommend this product
          Filter by:
          Showing 1-10 of 36 reviews
          Great solution for dealing with old paint
          Works quickly to setup/harden liquid paint. Works faster than kitty litter and other fibrous products I've used. It also adds less volume to the paint can. Available in larger containers if you need to dispose of lots of cans.
          by
          • Recommended
          3 found this review helpful
          Have not had the opurtunity to use it as yet....
          Have not had the opurtunity to use it as yet.
          by
          Response from Rust-OleumSupportDec 8, 2022
          Thanks for sharing your experience with Krud Kutter Waste Paint Hardener. If you have any further questions or concerns, we are here to help. We can be reached at 800-466-7126.
          - Rust-Oleum Product Support 6 Rustoleum
          • Verified Purchase
          Satisfied with Krud Kutter
          I was a bit disappointed to learn that 2/3 means 2/3 of a gallon rather then 2 or 3 gallons but the product did work very well.
          by
          • Verified Purchase
          Did not work very well...
          Did not work very well
          by
          Response from Rust-OleumSupportNov 9, 2022
          Thank you for reaching out, Arlene! To ensure the best results with Rust-Oleum Krud Kutter Waste Paint Hardener, it is essential that you are mixing the correct ratio. A 3.5 oz. bag will treat ⅔ gallon of paint. If the paint is thicker, one cup of water may be added to help with ease of use.
          - Rust-Oleum Product Support 3 Rustoleum
          • Verified Purchase
          Great for water-based low VOC paint
          Great product if used right. Best for water base paint that is less than a 1/3 of gallon. The less vocs the better. Not as good on oil based paints, but will still work by using more and waiting for it to dry.
          by
          • Verified Purchase
          • Recommended
          Arrived and performed as expected....
          Arrived and performed as expected.
          by
            Works well to thicken or harden the old paint...
            Works well to thicken or harden the old paint
            by
              Works in minutes. Paint is ready to dispose of.
              Works in minutes. Paint is ready to dispose of.
              by
              • Verified Purchase
              • Recommended
              Worked fantastically! Highly recommend!!...
              Worked fantastically! Highly recommend!!
              by
              • Verified Purchase
              Rating provided by a verified purchaser...
              Rating provided by a verified purchaser
              by
              • Verified Purchase
              Showing 1-10 of 36 reviews

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