High Build Primer smooths uneven and cracked surfaces. All the qualities of Mad Dog Original. Crushes the competition.  

• Patented adhesive formula adheres to exterior substrates with powerful grip. 

• Remains permanently flexible and breathable, expands and contracts as the substrate flexes with seasonal changes in temperature and humidity, ensuring a paint job that endures 2 to 3 times longer than traditional primers.

• Use on: all types of wood substrates, masonry, concrete, aluminum, vinyl, fiber cement siding, T1-11, etc

• Best project applications: worn, pitted, weathered substrates, residential, commercial, and industrial repaint projects

• Available in quarts, gallons, and fives
• 35% solids by volume
• 200% elongation
• 140 sq ft per gallon @ 4 mils dry (11 mils WFT)
• Interior/Exterior use
• Apply by brush, roll, or spray 
• Back brush for best results
• Dries high hiding, bright white and tacky to the touch
• 200 + PSI adhesion
• 100% Acrylic latex formula
• Soap and water clean-up
• <48 g/L VOC