DC 315: Over Spray Polyurethane Foam (SPF) Will Achieve a 15 Minute Thermal & Ignition Barrier

DC 315 applied over Spray Polyurethane Foam (SPF), is an Alternative Barrier System in “Section 2603.9 Special Approval” as a thermal barrier. To be approved as an alternative barrier system, DC 315 is applied over a manufacturer’s SPF, and is tested to the criteria of an NFPA 286, UL 1715, UL 1040, or FM 4880 for duration of 15 minutes by an accredited fire testing facility. Products that pass an ignition barrier tested under AC 377 Appendix X are not appropriate alternative thermal barriers and cannot not be used.  Depending on your particular application, either ignition or thermal barriers are required by the International Building Code (IBC).  DC 315 has been tested and approved on 90 alternative barrier systems.

DC 315 Characteristics:

5 Gallon Pails or 55 Gallon Drums
Off White or Gray
47 g/l

Competitive Advantages of Using DC 315 Include:

DC 315 is the most tested and approved product in the world for use as an, “Alternative Barrier Coating System" over Spray Polyurethane Foam (SPF).
Tested over, “90 Full Scale NFPA 286” on “29 National Brand Spray Polyurethane Foams (SPF)”. These foams account for the majority of sales of SPF in the U.S.A.
Visit our website to obtain a current matrix of all the manufacturer’s foams DC 315 has been tested and approved over.

If a coating has not passed a full scale test on a manufacturer’s foam it cannot be used on that foam; there are no exceptions in the IBC Code!


All coatings must pass a full scale test on each of the manufacturer’s types of open and close cell foams. Manufacturers like Bayer, Lapolla, Gaco, Quadrant, Icynene, Premium, NCFI, SWD, BioBased, etc., must be individually tested to be used as a protective 15 minute thermal barrier coating.  If a coating is not tested it cannot be used.

Building Code Fire Performance Requirements for Spray Polyurethane Foam:

The International Building Code mandates that spray polyurethane foam be separated from the interior of the building by a 15 minute thermal barrier, or other approved covering.  DC 315 passed certified NFPA 286 and UL 1715 over a variety of open and closed cell spray applied urethane foams that were conducted by certified testing facilities.  All tests performed complies with the requirements of 2006 IBC Section 803.2.1 & 2009 IBC Section 803.1.2, and Section 2603.9; 2012 IBC Section 803.2.1 and Section 2603.10 under "Special Approvals for Thermal Barriers over Foam Plastics".

IBC Code requires certified testing to ensure Code Compliance.  Any company can say they are compliant, but can they supply you proof?

DC 315 viscosity of 15k to 18K CPS assures a one coat coverage at 20 wet milsLower viscosity products are a two coat application, resulting in double your labor costs.

International Fireproof Technology Inc.