Parker 475313 Virginia Line Thermal Mastic 1 Gal Tan

Product Description

The PARKER 475313 is a thermal mastic sealant in the Virginia Line, packaged in a 1-gallon plastic bucket with a tan color. Thermal mastic is used to seal and insulate duct joints, seams, and connections in HVAC systems, providing an air-tight and thermally resistant barrier. The product comes ready to apply and is handled by HVAC technicians and sheet metal installers working on both supply and return duct assemblies. The 1-gallon container size supports single-job or multi-joint applications without the need to pre-mix or thin the compound before use.

This thermal mastic is suited for residential and light commercial duct sealing work. It is applied at duct joints, fittings, and seams where air leakage control is required. The Virginia Line designation identifies it within the PARKER mastic product family. HVAC installers and service technicians use it during new construction and retrofit duct work where code or performance standards require sealed duct systems.

Key Features

• 1-gallon actual content in a durable plastic bucket for job-site use
• Tan color finish for consistent identification across Virginia Line products
• Ready-to-apply consistency — no pre-mixing required
• Designed for duct joint and seam sealing in HVAC duct systems
• Compact bucket dimensions support storage in service vans and on-site tool kits

Compatibility

Designed as an OEM-style duct sealant for use on residential and light commercial sheet metal, flex duct, and fiberglass duct board assemblies requiring air-seal mastic application.

Installation Notes

Applied by HVAC technicians and sheet metal installers using a brush, trowel, or gloved hand to duct joints, seams, and fittings prior to system startup. Follow local mechanical codes and ACCA or SMACNA guidelines for duct sealing requirements. Ensure duct surfaces are clean and free of dust, oil, or loose debris before application. Keep the container sealed when not in use to prevent the mastic from drying out.