Boss Products 142275 Hvac Silicone Sealant 10.1 Oz

Product Description

The BOSS PRODUCTS 142275 is a white HVAC silicone sealant packaged in a 10.1 oz cartridge. It is formulated for sealing joints, seams, and penetrations in heating, ventilation, and air conditioning systems. The sealant delivers a flexible, durable bead that resists temperature cycling and moisture, making it suitable for both supply and return ductwork connections, air handler cabinet seams, and related HVAC assemblies. HVAC technicians and sheet metal installers reach for silicone-based sealants in applications where thermal movement and condensation exposure require a product that stays flexible after cure.

This sealant is intended for residential and light commercial HVAC applications where an airtight, moisture-resistant seal is required. Typical installations include duct connections, flange seams, and equipment cabinet closures. The white finish blends with common ductwork and equipment housings. The standard 10.1 oz cartridge fits a conventional caulk gun, making it practical for both shop and field work.

Key Features

• White silicone formula resists moisture and temperature cycling in HVAC environments
• 10.1 oz cartridge sized for standard caulk guns
• Flexible cure maintains seal integrity through thermal expansion and contraction
• Suitable for ductwork joints, cabinet seams, and air handler penetrations

Compatibility

Designed as an OEM-style sealant for residential and light commercial HVAC ductwork, cabinet, and seam sealing applications.

Installation Notes

Installation is typically performed by licensed HVAC technicians or sheet metal workers. Power down and de-energize the equipment before applying sealant near electrical components or air handlers. Ensure mating surfaces are clean, dry, and free of dust or oil before applying a continuous bead. Allow full cure time before restoring airflow or system operation in accordance with the manufacturer instructions and applicable mechanical codes.

Technical Specifications

• Net Weight: 10.1 oz
• Color: White
• Formula: Silicone
• Application: HVAC sealing

Standard Information

• Brand: BOSS PRODUCTS
• Manufacturer Part Number: 142275