Metacaulk Putty is a non-curing, moldable, one-component firestop material designed for through-penetration systems.

When exposed to fire, itintumesces, forming an insulating char that prevents the spread of flames, smoke, gas, and water through penetrations.

Key Features:

• Safe for Confined Spaces: Contains no volatile solvents and is suitable for use in occupied areas.
• Easy to Apply: Can be hand-applied with no mixing, special tools, or additives required.
• Strong Adhesion: Bonds to all common building surfaces for a secure seal.
• Fire-Rated Protection:
  • Provides up to 3-hour fire resistance in compliance with ASTM E 814, UL 1479, and ULC/CAN4-S115-M test standards.
  • Pads have an STC Rating of 60, ensuring excellent soundproofing.
• One Thickness for Versatile Use:
  • A single 1/8″ pad thickness provides a 12-hour fire rating.
  • No additional putty is required to plug the ends of electrical metallic tubes or conduits at their box connections.
• Code Compliance: Required in rated partitions where the horizontal separation of opposite-facing electrical boxes is under 24 inches.
• Safe & Non-Hazardous:
  • No asbestos fillers
  • D.O.T Classification: Not Regulated

Why Choose Metacaulk Putty?

Reliable Fire Protection Intumescent technology prevents fire and smoke spread.
Quick & Easy Installation No special skills or tools required.
Safe for Any Environment No volatile solvents, ideal for confined spaces.
Meets Building Code Requirements Required in rated partitions for proper firestop compliance.

Upgrade Your Firestop System with Metacaulk

For trusted, high-performance fire protection, choose Metacaulk Putty the easiest and most effective solution for securing electrical penetrations and maintaining fire-rated partitions.

Documents

• Certified Clean Air Gold Certificate
• Certificate of Compliance FM Approvals 3971 an 4990
• PDS – English
• PDS – Spanish
• SDS – English
• SDS – Spanish