Armacell Product Selector

ArmaFlex WB Finish

White Paintable Insulation Coating

ArmaFlex WB Finish is a white, water-based, 100% acrylic coating supplied in gallon or quart containers for use over all forms of ArmaFlex insulations.

It provides a clean, moisture-resistant protective finish suitable for both indoor and outdoor applications. It is engineered for greater durability and cold weather flexibility to resist cracking. The water-based formulation allows it to dry without fumes and be cleaned up with soap and water.

ArmaFlex WB Finish adheres to clean ArmaFlex surfaces and dries to a pliant coating. Outdoors, its special properties make it exceptionally durable and weather resistant to ultraviolet (UV) and ozone. ArmaFlex WB Finish requires routine maintenance. Outdoor surfaces should be recoated every 2 to 4 years.


ArmaFlex WB Finish is a white, water-based, 100% acrylic  coating supplied in gallon or quart containers for use over all forms of ArmaFlex insulation.

Product Advantages

  • Suitable for both indoor and outdoor applications

  • Provides a clean, white, protective finish which guards against UV and ozone damage

  • Formulated for cold weather flexibility

  • Resistant to cracking

  • Water-based, 100% acrylic is fast drying without solvent fumes. Cleans up with soap and water.

  • Available in white; tinting possible for indoor use only

Application Areas

  • Required for outdoor ArmaFlex applications exposed to UV or weather

  • Indoor applications where white protective finish is desire



White, water-based latex coating


  • Standard white. ArmaFlex WB Finish may be tinted for indoor applications with selected pigment pastes recommended for shading or coloring latex paints at less than 4 ounces per gallon. When WB Finish is used for outdoor application, tinting is not recommended.

  • V.O.C. Less than 50 g/l (calculated)


  • Brush or roller


  • Up to 400 sq. ft. (37 sq.m.) per gallon per single brush coat, depending on temperature and location

Minimum Drying Time:

  • Four hours minimum for application of second coat, at least 24 hours to dry completely

Container Sizes:

  • Quart or gallon containers


  • Not flammable; water-based

For complete Specification details, download the product submittal sheet.


  • ArmaFlex 520 and 520 Black Adhesive – Air-drying, solvent-based contact adhesive for strong bonds and tight seams.

  • ArmaFlex Insulation Tape – black foam, pressure-sensitive seam tape

Armacell Manufacturing Locations

Did you know?

Armacell has 4 manufacturing facilities in the US and 1 in Canada. That means almost any product you order in North America is made in North America. Some exceptions apply.

Made In USA

© Armacell, 2014-2024 • 55 Vilcom Center Drive • Suite 200  • Chapel Hill, NC 27514 • tel 800 866 5638