BOSS 380 RTV Silicone Sealant 9.5 oz - Black

BOSS 380 RTV Silicone Sealant 9.5 oz Black

The BOSS 380 RTV Silicone Sealant is a contractor-grade, professional 100% silicone sealant designed for sealing, waterproofing, and bonding applications. It provides strong adhesion to glass, metal, wood, plastic, porcelain, ceramic, painted surfaces, and other common construction materials.

In simple terms: This is a flexible, waterproof silicone caulk used for sealing windows, doors, HVAC systems, refrigeration units, vents, fixtures, gutters, piping, and general construction joints.

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Best For

• Window and door sealing: Helps weatherproof exterior and interior joints.
• HVAC applications: Suitable for ducts, vents, heating, and refrigeration sealing.
• General construction sealing: Works around fixtures, gutters, piping, and joints.

Key Benefits

• 100% silicone: Creates a durable, long-lasting seal.
• Waterproof seal: Suitable for indoor and outdoor applications.
• Fast cure formula: Designed for quick skin formation and efficient application.
• Will not shrink, sag, slump, or run off: Helps maintain a clean professional bead.
• VOC compliant: Meets VOC compliance requirements.
• Strong adhesion: Bonds to glass, metal, wood, plastic, porcelain, ceramic, and painted surfaces.

Typical Uses

• Sealing windows and doors
• HVAC duct sealing and ventilation work
• Gaskets in heating and refrigeration units
• Sealing around fixtures, gutters, vents, and piping
• Waterproofing overhead and vertical joints
• Bonding to metal, glass, wood, plastic, porcelain, ceramic, and painted surfaces

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Specifications

Brand	BOSS
Product Name	380 RTV Silicone Sealant
Type	100% RTV Silicone Sealant
Size	9.5 oz (280 mL)
Color	Black
Grade	Contractor / Professional Grade
Seal Type	Waterproof Seal
Compliance	VOC Compliant

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Installation Notes

• Surface prep: Clean surfaces from dust, oil, moisture, and debris before application.
• Application: Apply using a standard caulking gun.
• Tooling: Smooth sealant before skin forms for the best finish.
• Curing: Allow proper curing time before heavy moisture exposure.

Common Questions

Q: Is this silicone suitable for outdoor use?
A: Yes. It is designed to create a waterproof, weatherproof seal for interior and exterior applications.

Q: What surfaces does it adhere to?
A: It bonds to glass, metal, wood, plastic, porcelain, ceramic, painted surfaces, and other common construction materials.

Q: What color is this product?
A: This product is Black.