Whitson Insulation Co. of Grand Rapids, Inc., Contractor  Insulation, Kentwood, MI National Insulation Contractors Exchange

JM Corbond III SPF is a premium, high-yield spray polyurethane foam building insulation. The product is generated onsite by combining an isocyanate and a polymeric resin through a dual-component proportioner. Fast, easy and adaptable, it can be applied at temperatures as low as 25°F and achieve an R-value of 19. JM Corbond III SPF is well suited for residential, commercial and industrial applications. As one of the most advanced insulation solutions, it offers climate isolation between indoor and outside environments.


Performance Advantages

  • Unique Climate Isolation System – creates a thermal, air and moisture barricade.

  • Retrofit applications – can be used to insulate basements, new additions and commercial buildings.

  • Flexible hybrid system – JM Spider® Custom Insulation System can be applied over JM Corbond III SPF in exposed attic spaces for increased R-value.

  • Air impermeable – when tested in accordance with ASTM E283, JM Corbond III SPF is air impermeable when installed at a thickness of 1 1/2 inches or more.

  • Energy efficient – reaches R-19 when installed at a thickness of three inches, and up to R-39 when installed at six inches.

  • Superior moisture performance – resists mold growth and meets all current vapor barrier codes. When tested in accordance with ASTM E96, JM Corbond III SPF has a vapor permeance of 0.61 perms at 11/2 inches thick.

  • Covers completely – integrally attaches to cavity spaces, will not shrink or settle.

  • More economical – the highest yield of any closed-cell foam building insulation, with up to 5,200 board feet of coverage per set in typical residential construction.

  • Faster and easier to install – sprays at three inches per pass, allowing for greater productivity.

  • Widest application temperature range – can be applied at temperatures as low as 25°F.

  • High-quality raw materials – consistent, product without offensive odor, no ozone-depleting chemicals and exceptional seasonal versatility.



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Whitson Insulation Company of Grand Rapids, Inc.  •  4287 Brockton Drive SE  •  Kentwood, MI  49512
Phone  616.698.0490  •  Fax  616.698.0518