FireMaster® FastWrap XL

Product Decription: Thermal Ceramics FireMaster® FastWrap XL is a flexible blanket composed of high temperature fibers classified for applications to 2192°F (1200°C) and fully encapsulated in a durable glass fiber reinforced foil facing for easy handling and installation. Thermal Ceramics FastWrap XL is UL and ULC Listed for 1 and 2 hour fire resistive enclosure protection, zero clearance for kitchen exhaust ducts, electrical circuit protection, and as a component in UL firestop designs for fire resistance rated floors, ceilings, and walls. The core fibers in FastWrap XL are manufactured using Thermal Ceramics patented Superwool® fiber which is an alkaline-earth silicate wool with low biopersistence and therefore increased safety for installers. FastWrap XL is under UL’s Follow-Up Service Program to ensure the consistent quality essential to this life-safety application



  • Thin and Lightweight at 1-1/2” (38mm) thick, 6 pcf (96 kg/m3) density
  •  Contours easily to complex duct designs
  • Grease duct installation UL and ULC Listed with butt joints at all seams on both layers
  • Fully foil encapsulated for fast and clean installation
  • Contains 2192°F (1200°C) rated fibers • Microbial Resistance validated by UL Environment
  • Good sound absorption
  • Compliant to IMC, NFPA 96, UMC, CMC, CNBC


  • 2 hour enclosure and firestop system for kitchen exhaust ducts
  • Zero clearance to combustibles
  • 1, 2 and 3 hour enclosure and firestop system for hazardous exhaust ducts, pressurization ducts, clothes dryer exhaust ducts, trash and linen chutes, and other fire rated HVAC ducts
  • 1 hour electrical circuit integrity protection
  • Engineered and tested solutions for fire protection of structural steel and storage vessels per ASTM E119, ISO 834, and UL1709

Code Compliance:

  • Grease Duct Enclosure per ASTM E2336 and AC101 (2006, 2009, 2012 IMC, NFPA 96, UMC, CMC)
  • ULC Grease Duct Test Protocol and CAN/ULC S144*
  • 1-or 2-hour Ventilation Duct Enclosure per ISO 6944-1985
  • Electrical Circuit Protective System

For more information involving installation techniques and material data sheets, please follow the attached manufacture link