International Fireproof Technologies

Spray on Thermal Barrier - DC315 Thermal Barrier Paint for Spray Foam (SPF) - 5 gallons

Usually Ships in 1 to 2 Days
  • DC315 Fire Retardant Paint for Spray Foam Insulation
  • Color samples
$375.00 - $395.00


What is this Spray Foam Insulation Fire Barrier?

This fire barrier spray foam is an intumescent coating applied over Spray Polyurethane Foam (SPF) to achieve a “15 Minute Alternative to Thermal Barrier” and “5 Minute Ignition Barrier.” This 5 gallon spray foam insulation is compliant to IBC & IRC codes; 3rd party inspected and listed by Warnock Hersey ( WN-20947), and meets the requirements of the AC456 criteria recently updated in AC377. DC315 has more than 200 tests worldwide over a wide variety of foams. It has one of the best coverage rates for foam at 115 sq ft/gallon, making it very cost efficient. Also available in 55 gallon drums.

Data sheet and application guide
  • Coverage rate averages between 73-115 sq ft per gallon, depending on foam manufacturer. Call us for exact numbers.
  • DC 315 is AC456 compliant
  • More full scale Thermal and Ignition Barrier tests than any other product in the world
  • DC 315 - 3rd. party inspected for Quality Control: Warnock Hersey Intertek W/N 20947
  • Tested useful life, fire resistant property is not compromised after 50 years
  • Top coat for color, weather & moisture protection, tested, via NFPA 286 full scale testing
  • ANSI 51 testing for incidental food contact
  • Passed CAL 1350 - qualify DC 315 as a low-emitting material in the Collaborative for High Performance Schools rating system (CHPS Designed & CHPS Verified)
  • Passed strict EPA  V.O.C. and AQMD air emission requirements (for all 50 states)
  • 3rd Party tested Single Coat Coverage up to 24 Mils WFT, on ceilings and walls, reducing labor costs equaling higher profits
  • Meets Life Safety Code 101
  • Meets LEED point requirements
  • No formaldehyde

Prior to Applying DC 315 to Ensure Proper Adhesion

Adhesion of a coating to SPF requires the foam surface to have a slight profile or texture similar to an orange peel (view below). Smooth or glossy foam surfaces should be flash coated with a light 3 - 4 mils Wet Film Thickness (WFT) of DC 315 before applying the full application. Flash coating is a quick burst of DC 315 or a primer via airless sprayer over an area needing treatment. We also recommend flash coating around all pipes and air ducts.
Wait minimum of one hour after spraying SPF before applying DC 315.

Surface Preparation

All surfaces to be coated must be clean, cured, firm, dry and free of dust, dirt, oil, wax, grease, mildew, and efflorescence. The quality of any application is only as good as the surface preparation that precedes the application. Our coating has excellent bonding characteristics and will adhere to most sound, clean, foam surfaces. Verify that the surface of the foam is free of gouges, holes, and exposed cells. Also verify the surface is stable, and not crumbling or deteriorated. If any such defects are found make sure to repair them prior to proceeding.

Material Preparation

This spray on thermal barrier must be thoroughly mixed before application. Failure to do so will seriously compromise the coating's ability to perform. It is recommended to perform mechanical stirring with a high speed drill and a paddle appropriate for the size container you are working from. Contents should be stirred from the bottom up making sure to scrape the bottom and sides with a paint stick as you go. Contents should be stirred to a creamy consistency with no lumps. Continue mixing for 4-5 minutes per 5 gallon pail. Thinning is usually not needed. If DC 315 has been exposed to high heat, water may evaporate from the plastic 5 gallon container. If the paint level is below 3 inches from the top of the container, add enough water to bring the level back up to within 3 inches from the top in order to ensure proper consistency.

DC 315 Viscosity

DC 315 is a 9,000-10,000 viscosity coating. When you open a container of DC 315 it may appear thick before it is mixed, but once remixed for 5 minutes it will return to 9000-10,000 viscosity.

Application Equipment

This 5 gallon spray foam insulation is best applied with an airless sprayer to achieve a more consistent mil thickness. In challenging areas where an airless sprayer is not practical, DC 315 can be applied by brush or roller Spraying DC 315 for Maximum Yield: If this is the first time using DC 315 we suggest testing a pre-measured area to get a feel for spraying and yield. Example, if the job requires 20 wet mils or 80 sq. ft. per gallon, then a 5 gallon pail would cover 400 sq. ft. Measure out one or two 400 sq. ft. sections using pieces of tape, thumbtacks, or canned spray paint. Use just enough to outline the area you intend to apply DC 315. We suggest spraying inside the outlined area and taking wet film thickness measurements, with a wet film gauge across the area, to get a feel for maximum yield.
View AllClose