BOSS 136 Fireblock Draftstop Sealant 10.1 oz Red

BOSS 136 Fireblock Draftstop Sealant 10.1 oz Red

The BOSS 136 Fireblock Draftstop Sealant is a single-component, noncombustible sealant designed for fireblocking applications in residential and commercial construction. This red sealant is used to seal gaps and penetrations around wires, pipes, ducts, vents, and other openings to help prevent the spread of fire, smoke, and gases.

In simple terms: This is a fireblock caulk used to seal openings in walls and ceilings to stop air movement and slow the spread of fire.

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Best For

• Fireblocking penetrations: Sealing around wires, pipes, and ducts.
• Air sealing: Reducing airflow through gaps and cracks.
• Interior construction: Fireblock applications in walls and ceilings.

Key Benefits

• Noncombustible sealant: Helps prevent the spread of fire and smoke.
• ASTM E-136 tested: Meets fire safety standards for construction.
• High temperature resistance: Performs up to 800°F service temperature.
• Easy application: Applies with standard caulking gun.
• No mixing required: Ready-to-use single component formula.
• Excellent adhesion: Bonds to a wide range of construction materials.

Typical Uses

• Sealing around electrical wiring penetrations
• Fireblocking around plumbing pipes
• HVAC duct and vent sealing
• Sealing wall and ceiling penetrations

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Specifications

Brand	BOSS
Product Name	136 Fireblock Draftstop Sealant
Size	10.1 oz Cartridge
Color	Red
Material Type	Sodium Silicate Based Sealant
Service Temperature	Up to 800°F
Application	Interior Use Only
Application Method	Standard Caulking Gun

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Installation Notes (Best Practice)

• Surface preparation: Ensure surfaces are clean and free of dust, oil, and debris.
• Application angle: Apply at a 45° angle using a caulking gun.
• Full contact: Ensure sealant fills the entire penetration opening.
• Temperature conditions: Apply between 40°F and 110°F for best results.

Common Questions

Q: What is fireblock sealant used for?
A: It is used to seal gaps and penetrations in walls and ceilings to help slow the spread of fire, smoke, and air movement.

Q: Can this be used outdoors?
A: No. This product is designed for interior applications only.

Q: How is this applied?
A: It is applied using a standard caulking gun directly into gaps and penetrations.