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JM Corbond III - Canada

Offering a high R-Value per inch, Johns Manville Corbond III closed-cell spray polyurethane foam provides air sealing and moisture control in a single install step.

Data Sheet

SDS - A

SDS - B

Product Selector Guide

Johns Manville Corbond III closed-cell spray polyurethane foam insulation offers RSI 2.1 (R-12) at 50mm (2 inches) and can be applied in a single pass to a maximum of 89mm (3.5 inches), providing superior thermal performance with seamless air sealing and moisture control in a single step. Multiple immediate passes, with no wait time, may also be applied. With high yield and excellent adhesion, it's an ideal choice for high-performing energy efficient commercial, residential and industrial applications.

Advantages:
Complete Coverage: Expands and adheres without shrinking or settling.
Energy-Efficient: Reduces air and moisture infiltration to the building envelope and provides continuous coverage for high thermal performance.
Air Barrier: Prevents leaks when properly installed at 25 mm (1”) thickness or more.
Superior Moisture Performance: Resists mold growth; meets current vapour retarder codes.
Wide Application Temperature Range: Can be applied at temperatures as low as -7°C (19°F).
Faster Installation: Spray easily in a single pass from a minimum of 13 mm (0.5”) to a maximum of 89 mm (3.5”). Multiple immediate passes, with no wait time, may also be applied. See Data Sheet for complete information.

CCMC Evaluation Listing		13478-L
Standard	CAN/ULC	S705.1
Flame Spread	CAN/ULC S102	Tested
Fungi Resistance	ASTM C1388	Pass
Thermal Resistance	ASTM C518	RSI: 2.40, R-value: 14.40 (50mm specimen)
Long-Term Thermal Resistance	CAN/ULC S770 LTTR	RSI: 2.03, R-Value: 11.60 (50mm specimen)
Dimensional Stability	ASTM D2126	< 15% change in volume -20°C (-4°F), 0.3 volume change 80°C (176°F), 1.1 volume change 70°C (158°F), 97 ± 3% RH volume change
Nominal Density	ASTM D1622	Medium density 33kg/m³ (2.1 lb/ft³)
Compressive Strength (1”)	ASTM D1621	245 kPa (36 psi)
Water Absorption	ASTM D2842	0.88%
Water Vapor Transmission	ASTM E96	46ng (Pa.s.m²)
Sound Transmission	ASTM E90-90 & ASTM E413-87	36 (STC)
Air Permeance	E2178-03	< 0.0002 L/s @75Pa