3M Company 2141W-6 Interior Window Insulating Kit

Product Description

The 3M COMPANY 2141W-6 is an interior window insulating kit designed to reduce heat loss and block drafts around residential windows during cold-weather months. Each kit covers windows up to 62 inches wide by 252 inches tall and includes double-sided tape measuring 1/2 inch wide by approximately 33.2 yards in length. The clear film installs on the interior side of the window frame and, once heat-shrunk, becomes nearly invisible. This kit ships as a package of 6 units, making it well-suited for multi-window jobs or stocking service vehicles ahead of the heating season.

This insulating kit is used in residential applications where drafts and heat loss through older or single-pane windows are a concern. HVAC technicians and weatherization contractors commonly install these kits as a supplemental measure alongside other air-sealing work. The included tape allows for a secure perimeter seal on standard window casings. The clear-as-glass film appearance makes it appropriate for occupied living spaces where aesthetics matter during installation.

Key Features

• Covers windows up to 62 inches wide by 252 inches tall per kit
• Includes 1/2-inch wide by approximately 33.2 yards of double-sided tape
• Clear film appearance designed to be nearly invisible after installation
• Blocks drafts and reduces cold-air infiltration at window perimeters
• Packaged as 6 kits per unit of measure for multi-window efficiency

Compatibility

Designed as an interior draft-sealing solution for standard residential window frames where supplemental insulation is needed during heating season.

Installation Notes

Weatherization technicians and HVAC contractors typically install this product as part of a broader energy-efficiency service. Clean and dry the window frame thoroughly before applying the double-sided tape to ensure a secure bond. Apply the film smoothly over the tape perimeter and use a hair dryer to heat-shrink the film taut, working from the center outward. No special tools beyond a hair dryer and scissors are required, and no mechanical or electrical system shutdown is necessary prior to installation.

Technical Specifications

• Film Dimensions: 62 inches x 252 inches
• Tape Width: 1/2 inch
• Tape Length: approximately 33.2 yards per kit
• Package Quantity: 6 kits
• Unit of Measure: EA
• Weight: 4.94 pounds

Standard Information

• Brand: 3M COMPANY
• Manufacturer Part Number: 2141W-6