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CP-09 AK-CRYL® Weather Barrier Coating

Home > Products > Mastics, Coatings, Adhesives & Sealants > Childers Products > Weather Barrier Breather Mastics > CP-09 AK-CRYL® Weather Barrier Coating


AK-CRYL® CP-9 is an economical, polymeric, water based weather barrier, breather type mastic. CP-9 dries to a tough flexible film that protects thermal insulation from the ravages of weather by preventing water, rain, snow, sleet, spillage, wash water, etc., from entering into the system. In addition, CP-9 provides protection from mechanical damage created by external forces such as impact abrasion as well as the internal forces of thermal expansion, contraction, or vibration. Using CP-9 can also protect the insulation from chemical attack of acids, alkalis and solvents. CP-9 is fire resistant and U.V. stable.

  • Colors: White Other colors available on special order 
  • Wet Weight: 11.4 lbs./U.S. gal. (1.37 kg/liter) 
  • Average Non-Volatile: 60% to 64% by volume (64% by weight) 
  • Service Temperature Range: -40°F to 180°F (-40°C to 83°C) 
  • Application Temperature Range: 40°F to 100°F (4°C to 38°C) 
  • Drying Time: Touch - 2-4 hours; Through - 24-36 hours (Drying time will vary depending upon film thickness, temperature and humidity)
  • Coverage: 6 U.S. gal./100 sq. ft. (2.4 l/sq.m) (Varies with substrate and membrane.) 
  • Clean-up: Warm, soapy water (wet), xylol (dry) 
  • Water Vapor Permeance: ASTM E-96 Greater than 1.0 perms (Procedure B) at 1/16" film thickness.

GLT Products is your One Source supplier for mastics supplies. For more information, please see our data sheet or contact your sales rep.

CP-09 AK-CRYL® Weather Barrier Coating

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