Metacaulk Joint Strip

DESCRIPTION: Flexible, precured dry intumescent strips used for concrete & masonry floor & wall joints up to 2″ (51 mm) wide, duct insulation and up to 4″ PVC/CPVC & membrane penetrations.


  • Intumescent expands at the exposure of heat, forming a refractory char that tightly seals preventing the spread of flame, smoke and toxic fumes
  • Easy to install; single-sided application
  • Highly versatile, flexible; economical
  • May be covered with any color standard architectural caulk; no firestop caulk required

PERFORMANCE: UL Classified system up to 3 hrs; tested in accordance with ASTM E814 (UL 1479) & ASTM E1966 (UL 2079); VOC compliant (CDPH Standard Method v1.2); complies to Required Environmental Exposure Testing of Accelerated Aging and High Humidity as per UL 1479 Fire Test of Through-Penetration Firestops

Product Variations

  • 66700 - Metacaulk Firestop Joint Strip, 1"X82"
  • 66701 - Metacaulk Firestop Joint Strip, 1 1/2"X82"
  • 66702 - Metacaulk Firestop Joint Strip, 2 1/2"X82"
  • 66703 - Metacaulk Firestop Joint Strip, 3"X82"
  • 66704 - Metacaulk Firestop Joint Strip, 2"X82"
  • 66705 - Metacaulk Firestop Joint Strip, 4"X82"



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