Product Data & Installation Guide
1. Product Description
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. FastWrap
XL is UL Classified and ULC Listed in various systems for 1
and 2 hour fire resistive enclosure protection, reduced clearance for kitchen exhaust ducts, electrical circuit protection, and
as a component in various 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 lifesafety application.
Product Features
• Zero clearance to combustibles at any location
• Thin and Lightweight at 1-1/2” (38mm) thick, 6 pcf (96 kg/m
3
)
density
• Contours easily to complex duct designs
• Optimized installation with inside layer butt joints on grease
duct enclosures per ASTM E 2336
• Fully foil encapsulated for fast and clean installation
• Completely inorganic and non-combustible
• Contains 2192°F (1200°C) rated fibers for added safety
margin
• Wide variety of through penetration firestop systems
• Resistant to mold growth
• Good sound absorption
2. Applications
• 1 and 2 hour enclosure and firestop system for kitchen
exhaust ducts
• Zero clearance from enclosure to combustibles for kitchen
exhaust ducts
• 1 and 2 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 circuit integrity protection for cable trays and steel
conduits
• Engineered solutions and tested systems for fire protection
of structural steel beams and columns, and storage vessels
per ASTM E119, ISO 834, and UL1709
3. Physical Characteristics
4. Performance Specifications
5. Listings/Building Code Reports
FastWrap®XL
Commercial Kitchen Grease Duct Enclosure System
Air Ventilation Duct Enclosure System
Product Unit Size
Units/
Ctn.
Wt./
Ctn.
FastWrap XL Roll 1-1/2” x 24" x 25' 1 37.5 lbs.
FastWrap XL Roll 1-1/2” x 48" x 25' 1 75 lbs.
FastWrap XL Collar Roll 1-1/2” x 6" x 25' 4 37.5 lbs.
Color White blanket with silver foil encapsulation
Reference Standard Standard No. Performance
Grease Duct Enclosure System ASTM E2336 Pass
Section 16.1 Non-Combustibility
ASTM E136 Pass
Section 16.2-Fire Resistance
(wall)
ASTM E119 Pass
Section 16.3 - Durability Test ASTM C518 Pass
Section 16.4 - Internal Fire Test ASTM E2336 Pass
Section 16.5 - Fire Engulfment
(duct)
ASTM E814/E119 Pass
ULC Grease Duct Test Protocol Pass
Grease Duct Clearances UL 1978 Pass
Air Ventilation Duct Enclosure ISO 6944 Pass
Surface Burning Characteristics
Flame Spread (foil/blanket) ASTM E84 5/0
Smoke Developed (foil/blanket) ASTM E84 10/0
Thermal Resistance
(R-value @ 70°F)
ASTM C518 7.3 per layer
Mold Growth
(75% -95% humidity)
ASTM D6329 Resistant
* Laboratory Listings per UL 1978 have been withdrawn.
Listed Uses Agency Listing Layers
Grease Duct Enclosure per ASTM
E2336 and AC101
UL G18
2
ICC-ES ESR 2213
Grease Duct Insulation per ULC
Grease Duct Insulation Test Protocol
ULC FRD 4, 7 2
Through Penetration FireStop
System per ASTM E814, UL 1479
UL
See Figure 2 1 or 2
ULC
Ventilation Duct Enclosure System
per ISO 6944-1985
UL
HNLJ.V1, 2,
3, 4, 11, 12,
19
1
ULC
FRD 3, 5, 6,
18
Electrical Circuit Protective System UL FHIT.5 2
* International Code Council - Engieering Service