137661 BOSS 136 FIREBLOCK SILICATE SEALANT — RED — 10.1 OZ

The Soudal Accumetric 137761 (BOSS® 136 Fireblock) is a non‑combustible, sodium‑silicate‑based fireblock and draftstop sealant formulated for sealing non‑rated penetrations in residential and light commercial construction. It is designed to prevent the passage of fire, smoke, air infiltration, and toxic gases through openings around pipes, wires, ducts, vents, and similar penetrations. The red color aids visual inspection and code compliance.

PRODUCT DETAILS

• Manufacturer: Soudal Accumetric
• Brand / Series: BOSS® 136 Fireblock
• Part Number: 137761
• Product Type: Fireblock / draftstop sealant
• Net Contents: 10.1 oz (cartridge)
• Color: Red
• Composition: Sodium silicate (water‑based paste)
• Form: Non‑slumping, gun‑grade paste
• Application Method: Standard caulking gun
• Use Location: Interior only

PERFORMANCE & TECHNICAL DATA

• Pressure / Heat Resistance: Non‑combustible; service temperature up to high heat exposure when tested
• Dry Time: Approximately 18 minutes (surface)
• Cure Time: Full cure typically within 24 hours under proper conditions
• pH: ~12
• Specific Gravity: ~1.90
• Viscosity: High‑viscosity, stays in place for overhead and vertical joints
• Cleanup: Water‑cleanable before cure
• Shelf Life: Approximately 12 months (unopened)

KEY FEATURES

• Non‑combustible fireblock sealant meeting ASTM E‑136 requirements
• Designed for fire and smoke blocking in non‑rated construction
• Bright red color for easy inspection and identification
• Excellent adhesion to common building materials
• Does not sag or slump after application
• Single‑component — no mixing required
• Non‑toxic, contains no asbestos or PCBs
• VOC compliant for interior use

TYPICAL APPLICATIONS

• Fireblocking of annular spaces around:
  • Electrical cables and conduit
  • Plumbing pipes and vents
  • HVAC ducts and sleeves
  • Framing penetrations
• Air‑sealing to meet energy code requirements
• Draftstop sealing in residential and light commercial interiors

CODES, STANDARDS & APPROVALS

• ASTM E‑136 (Non‑combustible materials)
• Accepted for fireblocking applications under IRC / model building codes
• Supports energy‑code air‑sealing requirements
• Intended for non‑rated penetrations only