WeatherBond Water Cut Off Mastic

The WeatherBond Water Cut Off Mastic is a specialty membrane accessories from WeatherBond for exact-match material ordering. Match manufacturer model/MPN 309830. This variant is sold as TB with SKU WEAWCO. Water cut-off mastic is a one-component, low-viscosity, self-wetting, butyl-blend mastic designed to be used in conjunction with roofing and waterproofing systems.

Key Specs

• Brand: WeatherBond
• Model / MPN: 309830
• SKU: WEAWCO
• Sell unit: TB
• Product type: Specialty Membrane Accessories
• Size: 11 oz
• Color / finish: Gray
• Category: Commercial Roofing | Commercial Roofing/Membrane Accessories | Commercial Roofing/Membrane Accessories/Specialty Membrane Accessories

Key Features

• Extremely tacky
• Provides a durable compression-type seal between various membranes and parapet wall constructions
• 10 linear feet per tube at the recommended application rate of a ½" bead

Coverage & How Much You Need

Confirm coverage/yield from the manufacturer instructions and job takeoff before ordering.

Compatibility / Fitment

Use only with compatible systems and installation conditions specified by the manufacturer.

FAQs

What exactly am I ordering?

WeatherBond Water Cut Off Mastic, sold as TB, SKU WEAWCO, manufacturer model/MPN 309830.

What unit is the price based on?

The price is for the TB sell unit.

What should I match before ordering?

Match brand, model/MPN where available, size/color, sell unit, and the project specification.

Can this be substituted?

Treat this as an exact-match building material selection; hold for review before substituting a different model, color, size, or system family.

How do I estimate quantity?

Use the project takeoff plus manufacturer installation instructions, including waste, overlap, and accessory requirements.

Follow manufacturer instructions, OSHA-safe work practices, local code, and project specifications.

Product Expert Notes

Choose this variant when WeatherBond, SKU WEAWCO, TB sell unit, and MPN 309830 match the job requirement.