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5 Gal. WaterTite LX Low VOC Mold and Mildew-Proof White Water Based Waterproofing Paint

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  • Forms an impermeable water barrier on various types of concrete
  • Capable of withstanding up to 20 PSI of hydrostatic pressure
  • Covers up to 500 sq. ft.
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Product Overview

Application Surface Type
Mildew Resistant
Clean Up with Soap and Water
Coverage Area
Application Method
Dry Time
Zinsser WaterTite LX Ultra Mold & Mildew Proof Waterproofing Paint is a low odor, latex-based paint designed to create an impermeable barrier to water on interior and above or below grade exterior, vertical or horizontal, concrete block and cast-in-place concrete. Premium waterproofer stops moisture from entering basement or cellar walls and stops water from exiting when applied to canals or holding basins. Modified acrylic copolymer formula provides excellent mold and mildew protection on the paint film and resists efflorescence.
  • Great for basements and other interior/exterior masonry surfaces like fountains, reflecting pools, planters, retaining walls, privacy fences and more
  • Excellent waterproofing paint backed by 2 guarantees: 20 year waterproof and 10 year mold and mildew proof guarantee
  • Covers up to 500 sq. ft.
  • Bright white, non-gritty finish applies easily with a brush, roller or sprayer
  • Stops up to 20 lbs. of water pressure for long lasting protection
  • Premium waterproofer is an excellent block filler for use in wet areas where epoxy finishes are applied, including car washes, restrooms, garages and more
  • Ultra low-odor, low-VOC modified acrylic copolymer formula contains a mildewcide to prevent the growth of mold and mildew on the paint film only
  • Dries to the touch in 2 hours, recoat in 2-3 hours
  • Clean up with soap and water
  • Online price includes PaintCare fee in the following states: CA, CO, CT, DC, ME, MN, OR, RI, VT, WA
  • California residents

Additional Resources

From the Manufacturer

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Container Size
5 Gallon
Coverage Area (sq. ft.)
500 ft²


Application Method
Brush,Paint Sprayer,Roller
Base Material
Water Based
Color Family
Dry To Touch Time (hh:mm)
Maximum Optimal Temperature (F)
Minimum Optimal Temperature (F)
Paint/Stain Clean Up
Soap & Water
Paint/Stain Features
Mildew Resistant
Paint/Stain/Waterproofer Product Type
Concrete Basement & Garage
Recommended Number of Coats
Stain & Sealer In One
Substrate/Surface Usage Type
Surface Location
Basement Wall,Exterior Wall,Garage Wall
Time before recoating (hours)

Warranty / Certifications

Manufacturer Warranty
Satisfaction guaranteed for full refund of purchase price

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.7
    out of 113 reviews
  • 98%recommend this product
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Showing 1-10 of 113 reviews
This is a great product. I used it to paint the cinder block walls in my basement, which had be...
This is a great product. I used it to paint the cinder block walls in my basement, which had been painted some years before I bought my house. The walls were in good shape, but the old paint was starting to peel and chip in places. I started by cleaning the walls with a tsp solution and scraping away any loose paint. The Zinsser went on easily with roller and brush, but definitely plan on two coats. Fumes were an issue for me in a basement application without much ventilation. Recommend using a respirator. You'll want to mix it well also. A drill mixer got the job done. Five gallons was plenty for two coats in a fairly small basement. I'm really happy with the results. My basement looks good and smells drier than it did before I began the project.
  • Verified Purchase
  • Recommended
1 found this review helpful
I need to buy more, I wish they carried it in my stores!
I need to buy more, I wish they carried it in my stores!
  • Verified Purchase
  • Recommended
5 gallons covered 2 coats on 600 square feet of pretextured & prepainted masonry basement wall th...
5 gallons covered 2 coats on 600 square feet of pretextured & prepainted masonry basement wall that had all cracks sealed with hydraulic water stop cement. Paint did a great job of filling in tiny holes from previous undercoat. Other prep work involved wire brushing weak spots and bleach scrubbing mold spots. Paired with a 70 pint humidifier all dampness and odor is gone. Paint odor was tolerable, never made it to main floor, and was gone from basement within 2 weeks. Job done for 1 month, several big rains since and zero moisture inside. I would recommend this product to friends and family.
  • Verified Purchase
  • Recommended
12 found this review helpful
So far it's worked well (3 months). We used 2...
So far it's worked well (3 months). We used 2 coats on the concrete walls and floor in our basement. The best solution is to address how the water is getting in, but this is a great, relatively inexpensive second option. We did use hydraulic cement on some spots on the wall before we applied this.
  • Verified Purchase
9 found this review helpful
Easy to apply. Great look after drying. I added...
Easy to apply. Great look after drying. I added color paint flecks to add to the pop.
  • Verified Purchase
Did the job but took more coats than expected.
This product was low-odor which was good since I was in a basement room without ventilation. However, it went on a lot thinner than I expected, taking 4-5 coats in places. I did have appropriate rollers and quite a lot of experience painting, just not with this product. Overall, it did cover a lot more than 500 sq ft though, just in many layers.
  • Verified Purchase
    Recommended purchase
    Works well but....thought I was buying a gallon but its only a quart. This was my bad but at the price I don't see the value in at as a quart size
    Response from Rust-OleumSupportDec 9, 2021
    Thank you for reaching out, Winni. We appreciate your feedback about the quart size and price of Rust-Oleum Zinsser WaterTite LX Mold and Mildew-Proof Waterproofing Paint.
    - Rust-Oleum Product Support 3 Rustoleum
      • Recommended
          Showing 1-10 of 113 reviews