Foster® Chil-Seal® CP-137 Protective Coating

• CP-137 coating is non-flammable in the wet state and fire resistive when dry.
• It contains no solvents to attack insulations or facings.
• The viscosity permits overhead and vertical applications that do not sag or run for additional ease of application.
• The combination of properties afforded by this material gives it great versatility both as an adhesive and a coating.
• The polymeric resins make this an adhesive of high bond strength and unusual permanence.
• The tough film is washable and is abrasion resistant.

• CP-137 coating is used for adhering fabrics such as glass cloth, canvas (up to 8 oz.) and brattice cloth to many insulated surfaces such as round and rectangular duct work and equipment.
• It is also used for adhering the laps of these fabrics as well as some woven glass cloths on pipe insulation.

Pipe Insulation, Duct Insulation and Equipment:

• All insulation finished with canvas (or other fabric finishes) shall be bonded with and have their laps adhered with this coating.
• Apply only to clean, dry, oil-free surfaces. Apply a tack coat at 60 - 70 sq. ft. per gal.. Immediately embed the selected lagging fabric into the wet coating.
• Smooth to avoid wrinkles and overlap seams by at least 2 inches (5 cm). Immediately apply a finish coat at 60 - 70 sq. ft. per gal.
• The dry film thickness of this application will vary with the fabric selected. For air conditioning ducts, increase the coverage rate to 40 - 50 sq. ft. per gal. for each coat.

Notes to Specifying Engineer:

• It is recommended that in using most types of pre-sized glass cloth facings, this adhesive be used as the lap adhesive.
• The above suggested specification is for hot piping and equipment. It may be used for equipment operating as low as 55°F (13°C) in northern climates where a material with a perm rating of 1.3 is adequate.

​​​​​​Use of Material:

• Stir well, do not thin. This coating brushes easily.
• It should be stored indoors and above freezing temperatures, and should not be applied below 40°F nor above 100°F for best results.

The Condition of the Surface to be Adhered or Coated:

• Certain surfaces which are dusty or porous such as calcium silicate or certain mineral fiber materials should first be primed with a light coat of this product coating diluted 50% with water for proper bonding. A coating or adhesive will adhere no better than the integrity of the surface to which it is applied.

Application:

• This is easy to apply by brush or roller. The same procedure would be used when applying latex paints or similar brush-on coatings.
• Brushes or other tools should be kept in water and cleaned with hot, soapy water.
• This coating may be sprayed with many types of equipment, including airless spray.
• It may also be sprayed with conventional mastic spray equipment using an external atomizing spray gun.
• Many manufacturers of spray equipment can make detailed recommendations for any number of types of equipment.
• The spray equipment and techniques would be similar to those used for applying block fillers or heavy, latex paints.
• For best results, we suggested the following airless spray equipment.

Hints for Success:

• This is an excellent adhesive and also has good resistance to many chemicals and solvents.
• Spillage of this material should be cleaned immediately by washing with water.
• If it is allowed to dry, the best method for attempted cleanup is hot water, detergent and a wire brush.
• Always test foil and paper facing for acceptable adhesion before using.

Clean Up:

• Warm, soapy water (wet) or xylol (dry)

• California Dept. of Public Health Standard Method v1.2
• VOC Emissions and Content requirements to contribute to LEED v4 EQ Credit: Low Emitting Materials - Paints and Coatings
• VOC Content: 43 g/l, less water and exempt solvents
• Collaborative for High Performance Schools EQ 7.1
• Meets NFPA Standard 90A & 90B requirements
• Meets the performance requirements of MIL-A-3316C, Class 1, Grade A