Premium Durable Flame Resistant 12oz FR Pullover Hoodie,60% Modycrylic Dark Navy, XL 40%cotton 60% Mod acrylic Canadian Machine Washable KEEP'S YOU PROTECTED: The Best Hoodie For Canadain Weather & To Keep The Safety Guy's Off Your Back at Work.. FLAME RESISTENT FABRIC Fire Fighter's Use | Not SPRAY ON Fire Proofing Like Some Other's But We Won't Name Names . DURAIBLE STRENGTH THAT LAST'S: Added Oder Defendor into our 12 OZ Patented 12 ounce Modicyric Fire Resistant Material That Can Take A Beating, Since We Know You Put Your Hart in To Your Work Each Day HAVE THE BEST Of Both World's, By Keeping The Kangaroo Pockets You Love So Much & Have The Zipper Collar For EASY Access Same Manufacturing As The Big Boys WITH OUT BS Marketing HYPE Added Cost ( Same Same But Different ) HRC 2 |CAL Rate 8 | NFPA 70E | OSHA 1910 | ASTM 1506 Compliant. modacrylic is a manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of less than 85% but at least 35% by weight of acrylonitrile units. modacrylic is a synthetic copolymer. Modacrylic fiber is inherently flame resistant<span class="a-text-bold">.</span>Although it burns when directly exposed to flame, it <span class="a-text-bold">doesn&#039;t melt or drip and is self-extinguishing when the flame is removed.</span> Modacrylic is widely used in high-performance protective clothing, such as firefighting turnout gear because flame resistance is combined with other desirable textile properties such as durability and good hand feel. Cotton / ModacrylicsBrand&#039;s are soft, strong, resilient, and dimensionally stable. very quick to dry, They have outstanding resistance to chemicals and solvents, are not attacked by moths or mildew, and are non-allergenic. Hot Piping Oil Field Plants Welding Slag Grinder Sparks Handling Flammable Liquids Out Door Camping Fires Work The Garage Great in winter conditions up to -20 c with layers in Canada An electric arc flash is the passage of substantial electrical current through ionized air, created by an electric fault. Typically lasting less than one second, an arc flash explosion generates extremely high radiant heat and releases acoustical energy, a pressure wave, and molten debris. Temperatures can reach 35,000 degrees F. Flashfire is a primary hazard in industries that create a combustible material as a product or byproduct, such as petrochemicals or metallurgy. Arc flash is an obvious concern at electrical utilities; however, any work environment with qualifying electrical hazards needs to guard against arc flash injury with the proper FR garments. Exposed electrical equipment at 50 volts and above is the threshold that requires the use of NFPA 70E&#039;s electrical safety practices. Most manufacturers have some employees whose work falls under this description.