Our Approved Fire Coating & Fireproofing Chemicals in Ontario

If a municipal building inspector in Toronto or Ontario flagged exposed spray polyurethane foam in a mechanical room, basement, crawl space, garage, attic, or warehouse, you need IFTI DC315® Intumescent Thermal Barrier Coating (/fire-coating-dc315). Tested to CAN/ULC-S124 and backed by CCMC Evaluation Report #14036-R, a single 18–21 mil WFT airless coat of DC315 provides the mandatory 15-minute thermal barrier required by Ontario Building Code Sentence 9.10.17.10.(1) and Division B Article 3.1.4.2.

No. IFTI DC315® is tested under CAN/ULC-S124 specifically as a 15-minute thermal barrier over spray polyurethane foam insulation. To achieve a 1-hour, 2-hour, 3-hour, or 4-hour fire-resistance rating on bare or primed structural steel columns, W-beams, or metal floor decks under CAN/ULC-S101, you must specify either CSI Division 07 81 00 Cementitious Fireproofing (such as Monokote® MK-6®/Z-106 or Cafco® 300/400) or CSI Division 07 81 23 Structural Thin-Film Intumescent Coating (such as Carboline Nullifire®, AD Firefilm® III, or Sherwin-Williams Firetex®).

IFTI DC315® holds the industry’s broadest library of full-scale CAN/ULC-S124 and NFPA 286 fire test reports across virtually all CCMC-approved 2 lb closed-cell and 0.5 lb open-cell spray foam brands installed in Canada—including BASF Walltite® Eco v.3, Huntsman Building Solutions (Icynene / Demilec Heatlok HFO), Johns Manville & other approved CCMC spray foam chemicals. Our applicators match the exact wet mil thickness (18 to 24 mils WFT) to the specific spray foam brand on your walls or ceiling.

Standard 15 lb/ft³ gypsum SFRM (Monokote® MK-6® or Cafco® 300) is engineered strictly for dry, concealed interior floor/ceiling plenums. Whenever structural steel or concrete transfer slabs are exposed to high humidity, freeze-thaw temperatures, exhaust fan velocity, or physical abrasion—such as in underground commercial parking garages, loading docks, mechanical rooms, or elevator shafts—you must specify a 22 lb/ft³ medium-density (Monokote® Z-106 / Cafco® 400) or 40+ lb/ft³ high-density (Monokote® Z-146 / Fendolite® MII / Pyrocrete®) Portland-cement system.

Every chemical system is verified using its governing ASTM and ULC inspection protocol: (1) for DC315 over spray foam, we log live Wet Film Thickness (WFT) comb readings and cured Dry Film Thickness (DFT) pin-gauge readings; (2) for Cementitious SFRM, we perform ASTM E605 pin-depth and core-density sampling plus ASTM E736 bond-strength pull tests; and (3) for Structural Steel Thin-Film Intumescent, we log digital magnetic Elcometer 456 DFT readings across every column and beam face per ASTM E3108.

You can calculate a ballpark estimate in 60 seconds at /price-chat, or call our Toronto & Ontario engineering desk at (647) 333-3626 for 24-hour commercial blueprint take-offs and priority 48–72hr failed-inspection dispatch.