Mortex Products B2 Weatherstrip Caulking Cord 90 Ft Gray

Product Description

The MORTEX PRODUCTS B2 is a rope-style weatherstrip and caulking cord designed to seal gaps around windows, doors, and other openings without tools or special skills. At 90 feet per roll and 19 ounces, it delivers substantial coverage for residential and light commercial weatherization work. The cord presses into place with fingertip pressure, forming a flexible, airtight seal that blocks drafts, moisture infiltration, and insect entry. It comes in gray to blend with standard window frames and painted surfaces. HVAC service techs, insulation contractors, and general maintenance personnel reach for this cord when a fast, removable, non-hardening seal is needed on the job.

The B2 caulking cord is suited for sealing single- and double-hung windows, sliding doors, and gaps in wall penetrations during seasonal maintenance. Beyond weatherstripping, it functions as a gasketing material between mechanical components, a sound deadener in panel gaps, and a crack filler around conduit or pipe penetrations. Its non-curing formula means it stays pliable and can be removed without damaging painted or finished surfaces, making it appropriate for temporary or seasonal installations as well as permanent seals.

Key Features

• 90-foot roll provides generous coverage for full window and door perimeters
• Fingertip application requires no caulk gun, nozzle, or specialized tools
• Non-hardening, pliable formula remains flexible after installation
• Functions as weatherstrip, gasket, sound deadener, insect barrier, and crack filler
• Gray finish suitable for standard window frames and painted surfaces
• Removable without surface damage, supporting seasonal or temporary applications

Compatibility

Designed as a general-purpose weatherstrip and caulking cord for use around residential and light commercial windows, doors, and utility penetrations where a flexible, non-hardening seal is required.

Installation Notes

Installation requires no tools — press the cord firmly into the gap or joint using fingertip pressure, ensuring continuous contact along the entire seam. Surface should be clean and dry before application for best adhesion. For window installations, close and latch the window over the cord to compress the seal fully. No curing time is required; the seal is active immediately after installation.

Technical Specifications

• Length: 90 feet
• Size: 19 oz
• Color: Gray
• Weight: 1.388 pounds
• UPC: 00038092810924

Standard Information

• Brand: MORTEX PRODUCTS
• Manufacturer Part Number: B2