SpecSeal Firestop Block

SpecSeal® Firestop Blocks are penetration firestop products resembling foam bricks. These intumescent urethane foam blocks are installed in openings by compressing and stacking into the opening in a brick-like fashion. The intumescent block expands in high temperatures to impede fire, smoke, and gas passage.

Test Standards ASTM E90
ASTM E119 (UL263)
ASTM E814 (UL1479)
ASTM G21
CAN/ULC-S115

Third Party Approvals

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Features

Intumescent – expands in all directions for a tough, tight seal
Reinstallable for easy retrofitting of various pipes, cables, and innerducts
Lightweight for ease of installation
Easier wire screen requirements for large openings and 2 hour ratings
No special tools required
Superior air leakage ratings
No cure time -> fast application
Block may be coated using primer if required
Dust-free, fiber-free, halogen-free, and solvent-free

Applications

Blank Openings

Cables

Metallic Pipe

Plastic Pipe

Properties

Permanent

Finished Product

Intumescent

Light Weight

Re-Enterable

Specifications

Property	Value
Product Form	Intumescent Polyurethane Foam
Color	Brick Red
Density	0.35 g/cm3
In Service Temperature	Less than 130°F (54°C)
Storage Temperature	Less than 130°F (54°C)
STC Rating (ASTM E90-40)	59 (Relates to specific construction)
Mold & Mildew Resistance	0 Rating (ASTM G21)
Intumescent Onset Expansion Temperature	350ºF (176ºC)
Expansion Ratio	3x
LEED VOC	<5 g/l

Ordering Information

Catalog Number	UPC Number	Description	(UOM) Qty.	Case Qty.	Weight (Each)	Image
SBR25	730573951675	SBR Intumescent Firestop Block 2"x5"x8"	1	24	1 lbs

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