Sprayable, non-flammable elastomeric HVAC duct liner insulation and vapor barrier facing adhesive. Adhesive specifically designed for application using low pressure spray equipment. Its jelly-like structure produces little “buds” of adhesive when it is sprayed. These buds bite into the porous, fibrous surface of the insulation, resulting in a good bond. A high coverage rate is obtained. CHIL-SPRAY NF CP-89 adhesive is non-flammable in the wet state and fire resistive in the dry state.