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

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)
• 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