/ Through Penetrations firestop wall / floor

Metacaulk® Fire-Rated Putty Pads

Material Safety Data Sheet

Firestop Product Information:

Metacaulk® Putty Pads are used to maintain the hourly rating of fire-rated walls containing electrical outlet boxes and to reduce sound transmission. Only one pad thickness (1/8 inch) is required for a 1 or 2 hour fire rating. No additional putty material needed to plug the end of each electrical metallic tube or conduit at its connection to the box. Hand moldable with no curing time required. STC rating 60, Tested in a UL 411 wall assembly/section to ASTM E90. ASTM E 84 ve UL 723 Tünel Testlerinden başarıyla geçmiştir. 

Firestop Additional Information:

Metacaulk® Putty is a moldable non-curing one component fire-rated material for through-penetration firestop systems. Metacaulk® Putty will intumesce when heated, forming an insulating char. In the event of a fire, Metacaulk® Putty will prevent the spread of flames, smoke, gas and water through penetration openings. Metacaulk® Putty is applied by hand. Mixing is never required and no special skills are necessary for installation. Metacaulk® Putty is rated for up to 3 hours in accordance with the ASTM E 814, UL 1479 and ULC/ CAN4-S115-M test standards.


Firestop Product Document Downloads:


Firestop Key Features:

  • Firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479) &CAN/ULC S115
  • Wall opening protective material tested up to 3 hours in accordance with UL 263
  • Provides draft and cold smoke seal
  • Helps reduce noise transfer (STC-Rating of 60 when tested in STC 60-rated wall assembly)
  • Halogen-free formula
  • Pliable and conformable (molds easily into required shapes)
  • Self-adhering pads can be joined together for larger firestop applications 
  • Noncorrosive to metal and compatible with synthetic cable jackets
  • Will not dry out or crumble, re-enterable

Firestop Typical Applications:

Typically used for wall opening protection of membrane penetrations by metallic and non-metallic electrical outlet boxes to meet building code requirements. It is also used to seal gaps between cables in multiple penetrations (including fiber optic inner duct) and to firestop cable bundles, insulated pipe, electrical conduit, metal pipe and other through penetrations.