STI Firestop SpecSeal® Composite Sheets

Lightweight, Thin, and Easy to Work With

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What's special about these firestop sheets?

  • Panels are intumescent up to 15 times their original size for excellent firestopping of large or small openings
  • Once activated, these sheets form a dense insulated char, which reduces the transfer of heat and smoke
  • 50% lighter in weight and approximately 1/2 the thickness of standard composite sheet products for easy installation and handling
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Composite sheets have long been a favorite for firestopping large openings where a clean, neat finish is required. In addition, these sheets provide an excellent exterior surface. You may use the composite sheets with other STI Firestop products to seal penetrations through fire-resistance rated walls and floors for metallic and non-metallic pipes, insulated pipes, cable trays, cables, conduits, or blank openings.

Images

PART # DESCRIPTION DIMENSIONS WEIGHT PRICE
STI-CS1628 SpecSeal® Composite Sheet 16" x 28" 16" x 28" x 0.1"
(41cm x 71cm x 2.5 mm)
4.4 lbs
(2 kg)
Qty:  
STI-CS2436 SpecSeal® Composite Sheet 24" x 36" 24" x 36" x 0.1"
(61cm x 92cm x 2.5mm)
8.4 lbs
(3.8 kg)
Qty:  
STI-CS3636 SpecSeal® Composite Sheet 36" x 36" 36" x 36" x 0.1"
(92cm x 92cm x 2.5mm)
12.6 lbs
(5.7 kg)
Qty:  
STI-CS3641 SpecSeal® Composite Sheet 36" x 41" 36" x 41" x 0.1"
(92cm x 104cm x 2.5mm)
14.4 lbs
(6.5 kg)
Qty:  
STI-CS2852 SpecSeal® Composite Sheet 28" x 52" 28" x 52" x 0.1"
(71cm x 132cm x 2.5mm)
14.2 lbs
(6.4 kg)
Qty:  

These products protect openings of any shape in common construction work against fire, smoke, and combustion by-products. Another benefit to this type of firestop is that no maintenance is needed as there might be with other choices; however, it is recommended that any new openings or jobs be inspected to ensure that all remained sealed.

  • Durability built in: made of an intumescent layer bonded to a galvanized steel sheet, reinforced with steel wire mesh and covered with aluminum foil
  • Easy to cut using standard sheet metal cutting tools to size your composite sheets to specs
  • Can be used with other SpecSeal® or EZ Path products by STI
  • UL Classified
  • Tested to ASTM E814 (ANSI/UL 1479) for up to 2 hours
  • Specifically created for use in medium- to large-sized openings
  • Excellent for use in both floors and walls because it is lightweight enough for handing and hanging
  • Paintable for blending with current décor

 

Applications:

  • Seal penetrations through fire-rated walls and floors
  • Metallic and non-metallic pipes
  • Insulated pipes
  • Cable trays
  • Cables
  • Conduits
  • Blank openings
  • Suitable for clean room/area environment

 

 

Item Composite Sheet
Material 31 AWG, Steel Sheet, Steel Wire Mesh, and Aluminum
Mounting Floor or Wire
Fire Rating 2 hours
ASTM E814 (ANSI/UL 1479) Up to 4 hour ratings for penetrations in walls and floors
ASTM E814 Electrical Circuit Protection Systems for Cable Trays 1 hour UL Classified Systems
Surface Burning Characteristics Flame Speed 5
Smoke Development 50
Nominal Thickness 0.1 inch (2.5mm)
Nominal Weight 1.4 lb/ft² (6.9 kg/m²) Intumescent
Expansion Begins 350° F (177° C)
Volume Expansion 15 X (typical free expansion)
Max. In-Service Temperature 130° F (54° C)
Radiation Exposure Unaffected
Shelf Life No Limit
VOC Content n/a
STC Rating 55

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Thanks to its built-in firestopping system, this pathway remains code-compliant without additional sealants, no matter how many or how few cables you run through it.

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An excellent product for retrofit jobs and cabling that call for a firestopping sealant. It is easy to apply and meets the highest quality standards. This 36 cubic inch bar is all you need for metallic conduits, telephone, data or electrical power cable penetrations as well as a variety of sleeved and non-sleeved applications.

 

FSP Putty PadsNelson FSP™ Firestop Putty
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Ready to use right out of the box, this hand-moldable putty provides 3 hours of firestopping for pipe, cable, and ductwork penetrations, and can be reworked at anytime.

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Is a one-part composite system comprised of four components. The heart of the system is an organic/ inorganic, fire-resistive elastomeric sheet. It is bonded on one side to a layer of 28 gauge galvanized steel. The other side is reinforced with hexagonal shaped steel-wire mesh and covered with aluminum foil. This sheet functions as an effective intermittent fire-break within horizontal and vertical cable tray runs, and is excellent for both new and retrofit construction.

 

Nelson Firestop CPS SheetsNelson Firestop CPS™ Composite Sheet
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Perfect for protecting vital network equipment, this easy-to-install, 2-hour flame rated composite sheet blocks the spread of smoke and flame in through-wall cable penetrations.

 

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