JM Corbond IV® Closed-Cell Spray Foam

PART 2 - PRODUCTS

CLOSED-CELL SPRAY POLYURETHANE FOAM

1. Closed-Cell Spray Polyurethane Foam: ASTM C 1029, Type II, minimum density of 1.8 lb/cu. ft. and minimum aged R-value at 1-inch thickness of 6.8 deg F x h x sq. ft./Btu at 75 deg F.

1. 1. Surface-Burning Characteristics: Comply with ASTM E 84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

1. a. Flame-Spread Index: 25 or less.
2. b. Smoke-Developed Index: 450 or less.

Fire Propagation Characteristics: Passes NFPA 285 testing as part of an approved assembly.

Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. a. Johns Manville, “Corbond IV”; www.jm.com