T2960

SpecSeal® FP Intumescent Firestop Plugs – Fire-Rated Penetration Sealing

Our SpecSeal® FP Intumescent Firestop Plugs are designed for temporary or permanent sealing of cable and pipe penetrations through fire-rated construction. These soft, supple foam plugs expand 10 times their original size when exposed to heat, providing up to 2-hour fire ratings while maintaining easy reinstallation capability for future cable modifications.


Key Features & Benefits

Intumescent expansion – expands 10x in all directions when exposed to heat at 350°F
Reinstallable design – easy retrofitting and cable modifications without replacement
2-hour fire rating – UL classified systems tested to ASTM E814 (UL1479) standards
Easy installation – no special tools required, conforms to irregular surfaces
Soft resilient foam – 19 pcf density provides superior sealing around cables and pipes
Paintable surface – can be painted to match surrounding construction
Multiple sizes – 2″, 4″, and 5″ diameter options for various opening requirements
Long shelf life – unlimited storage life with proper temperature conditions


Product Applications & Specifications

Standard Applications

Cable penetrations – single or grouped electrical and communications cables
Pipe penetrations – metallic and non-metallic plumbing and conduit systems
Blank openings – temporary or permanent sealing of unused sleeves
Construction types – concrete floors, gypsum board walls, masonry assemblies

Fire-Rated Performance

Fire resistance – up to 2-hour ratings through concrete and gypsum assemblies
Testing standards – ASTM E814 (UL1479) and CAN/ULC-S115 compliance
UL classification – listed firestop systems for code compliance
Expansion temperature – activation begins at 350°F (176°C)
Volume expansion – minimum 10x original size for complete opening closure


Product Models & Specifications

Model Opening Size Weight Application Case Qty UPC Number
FP200 2″ (51mm) 0.27 lbs Standard cables/EMT 10 units 730573072029
FP400 4″ (102mm) 0.61 lbs Large cable bundles 10 units 730573072043
FP500D 5″ (127mm) 0.59 lbs Drain pipes/concrete only 10 units 730573072059

Physical Properties

Material – Polyurethane foam with intumescent additives
Color – Red for easy identification and inspection
Density – 19 pcf (304 kg/m³) for optimal expansion characteristics
Service temperature – Less than 130°F (54°C) continuous operation
Storage conditions – Less than 130°F (54°C), unlimited shelf life


Installation Advantages

Traditional vs. SpecSeal® FP System

Feature Traditional Method SpecSeal® FP Method
Installation Process Requires caulks, putties, complex mixing One-piece installation, no mixing required
Curing Time Extended curing and drying periods Immediate protection upon installation
Quality Control Varies by installer skill and mixing Factory-manufactured consistency
Cable Modifications Difficult removal, often requires replacement Easily removed and reinstalled
Tools Required Mixing equipment, application tools No special tools needed
Installation Time Multiple steps with waiting periods Instant installation

Special Applications

FP500D for drain pipes – specifically designed for 1-1/2″ and 2″ trade size pipes
Retrofit capability – ideal for existing installations requiring fire rating upgrades
Temporary sealing – removable protection during construction phases
Code compliance – meets penetration firestopping requirements across multiple divisions