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Rectorseal Metacaulk 9" X 9" Fire Rated Putty Pad

Original price $8.69 - Original price $8.69
Original price
$8.69
$8.69 - $8.69
Current price $8.69
  • Size: 9" x 9", 1/8" thickness
  • Fire Rating: Up to 3 hours (ASTM E814/UL1479)
  • Sound Rating: STC 60 with one pad for 1–2 hr rating
  • Best for: Firestopping electrical boxes, conduit, and junction boxes
  • Material: Moldable, non-curing intumescent putty

Rectorseal Metacaulk 6" X 7" Fire Rated Putty Pad

Rectorseal Metacaulk 9" x 9" Fire Rated Putty Pad

The Rectorseal Metacaulk 9" x 9" Fire Rated Putty Pad is a one-component, fireproof putty pad designed for electrical boxes, conduit, and through-penetration firestop systems. This non-curing, moldable pad intumesces when heated, forming an insulating char that blocks the spread of flames, smoke, gas, and water.

With a tested fire rating of up to 3 hours and a Sound Transmission Class (STC) rating of 60, these fire pads for electrical boxes ensure compliance with building codes while adding critical protection to rated assemblies.

Key Features

  • Size: 9" x 9" pad, 1/8" thick
  • Fire Performance: Rated up to 3 hours (ASTM E 814, UL 1479, ULC/CAN4-S115-M)
  • Sound Rating: STC 60 with only one pad needed for 1–2 hour ratings
  • Material: Moldable, non-curing putty that intumesces under heat
  • Code Compliance: Required in rated partitions when box separation is under 24"
  • Durability: Resists moisture, vibration, and extreme temperatures
  • Safety: Contains no volatile solvents and no asbestos fillers

Applications

  • Sealing metallic and nonmetallic electrical boxes
  • Large steel boxes and junction boxes
  • EMT pipe, conduit, and bundled cabling (telephone, power, communication)
  • Used with UL-approved designs alongside Metacaulk FRM Mortar for additional barriers
  • Provides a fire and smoke barrier even under vibration and movement

The Rectorseal Metacaulk putty pad is a proven, fire-rated solution for electrical box firestopping, combining easy hand application with long-lasting safety performance.


Specifications

Product Information
Specification Detail Specification Detail
Size 9" x 9", 1/8" thick Fire Rating Up to 3 hours (ASTM E814/UL1479)
Sound Rating STC 60 with one pad for 1–2 hr rating Best For Firestopping electrical boxes, conduit, and junction boxes
Material Moldable, non-curing intumescent putty Code Compliance Required in rated partitions where horizontal separation of opposite-facing boxes is under 24"
Durability Resists moisture, vibration, and extreme temperatures Safety No volatile solvents; no asbestos fillers

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