Dura-Seal 24: Concrete & Masonry Primer

(1 customer review)



Dura-Seal 24: Concrete & Masonry Primer

Dura-Seal 24 is the best exterior masonry primer. Allows you to prime a hot masonry surface after 24 hours. That’s 6 to 28 days sooner than competitive products. Dura-Seal 24 helps projects last up to 20 years.

Dura-Seal 24: Concrete & Masonry Primer adheres to all masonry and concrete surface after the substrate has cured for 24 hours. It will adhere to high pH level 13, and moisture content of 20%, allowing you to prime and top-coat much sooner than any other primer on the market.

Mad Dog Dura-Seal 24 is for new, peeling or weathered masonry surfaces. Extreme sun, rain, heat, cold, humidity & salt air formula.


Product Documents

Dura-Seal 24 Material Safety Data Sheet (MSDS)

Dura-Seal 24 Specifications sheet 

Dura-Seal 24 Product Info Sheet

Gal $49.99 MSRP

Product Features

  • Adheres to high pH masonry and requires only a 24 hour concrete cure time
  • Save time and money by priming sooner than other masonry primers
  • Penetrates, seals and encapsulates masonry surfaces
  • Prevents peeling caused by efflorescence and salt damage
  • Mold and mildew resistant

Product Specifications

  • 40% Solids
  • 300-400 SF gal coverage
  • 200% Flexibility
  • 200 psi Adhesion – pH level 13, MC 20%
  • Soap and water clean-up
  • Eco-friendly formula
  • Dries in 1 hour; re-coat in 1 to 2
  • Dries clear and tacky to the touch
  • Brush, roll or spray (.017 tip)
  • Do not tint
  • Super low VOC <48g/L

MAD DOG PAINT PRODUCTS are made with WeatherSmart™ Adhesive Technology

  • Permanently flexes and breathes, as the substrate expands and contracts with heat, humidity and cold weather
  • Helps finish coats retain sheen and color 2 to 3 times longer than traditional primers
  • Bonds like glue
  • Permanently prevents peeling and cracking
  • Locks down and stabilizes all worn and weathered surfaces
  • Resists mold and mildew
  • Promotes top coat adhesion for longest lasting paint durability
  • Reduces prep & labor by 20%
  • Cleans up with soap & water
  • Eco-Friendly formula
  • Low odor, Super Low VOC
Weather Smart Adhesive Technology the proprietary blend of co-polymer acrylic resins separating us from the rest of the primer pack

Weather Smart Adhesive Technology the proprietary blend of co-polymer acrylic resins separating us from the rest of the primer pack
Patent Pending

1 review for Dura-Seal 24: Concrete & Masonry Primer

  1. Evan

    Priming raw or new concrete after it’s cured for only 24 hours seems to good to be true. But last month we re-stuccoed my company’s building – about 4000 sq ft total. We were going to use SW’s Loxon but that has a 7 day cure time, so we tried Dura-Seal 24 instead. And guess what? It had/has great adhesion, there’s been no lime burn leaching to the surface and the paint looks great. Fantastic product!

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