Metacaulk Intumescent Collars

DESCRIPTION: Prefabricated device with precured dry intumescent designed for the circumference of open and closed through-penetrations diameters from 1 & 1/2″ up to 6″ (38 – 152 mm), with securing interlocking tab mechanism for easy installation.


  • Intumescent expands at the exposure of heat, forming a refractory char that tightly seals preventing the spread of flame, smoke and toxic fumes
  • Economical, easy to install, saves on labor; design greatly cuts time and expense comparatively
  • Fits in limited access areas; no measurement of material required
  • FBC System compatible

PERFORMANCE: UL Classified system up to 3 hrs; tested in accordance with ASTM E814 (UL 1479) and CAN/ULC-S115; tested for PVC, CPVC, ABS and PVC/ABS Foam Core, FRPP, PP, and Aquatherm; tested by a third party independent laboratory to the ASTM G21 standard with Fungal Growth Rating results of zero; complies to Required Environmental Exposure Testing of Accelerated Aging and High Humidity as per UL 1479 Fire Test of Through-Penetration Firestops



Revit Details


Metacaulk Collars Through Penetration

Product Variations

  • 66350 - Metacaulk Intumescent Pipe Collars 3"
  • 66351 - Metacaulk Intumescent Pipe Collars 4"
  • 66352 - Metacaulk Intumescent Pipe Collars 1-1/2"
  • 66353 - Metacaulk Intumescent Pipe Collars 2"
  • 66354 - Metacaulk Intumescent Pipe Collars 6"



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