Dap Inc 8789 Silicone Sealant 10.1 Oz Black Window Door

Product Description

The DAP INC 8789 is a 100% silicone, all-purpose window and door sealant formulated for maximum flexibility and long-term joint integrity. Packaged in a standard 10.1 oz cartridge, it delivers a waterproof and weatherproof seal rated for interior and exterior applications. The cured bead becomes water resistant within 30 minutes of application and is engineered to resist shrinking and cracking over time. Its low-odor formula makes it practical for use in occupied spaces. Backed by a lifetime durability guarantee, this sealant is a go-to option for trade professionals handling glazing, flashing, and general weathersealing work.

This sealant is suited for residential and light commercial applications wherever a permanent, flexible seal is needed around windows, doors, and other penetrations. It adheres to a wide range of surfaces including glass, metal, wood, and masonry. The application temperature range of 40 to 120 degrees Fahrenheit covers most seasonal field conditions. Because it is not paintable, it is best specified where the black finish is acceptable or will be concealed by trim. Each case contains 12 cartridges, which is practical for multi-unit or repeat service calls.

Key Features

• 100% silicone formula resists shrinking and cracking under extreme joint movement
• Water resistant in 30 minutes with a fully waterproof and weatherproof cured seal
• Application temperature range: 40 to 120 degrees Fahrenheit
• Low odor — suitable for interior or exterior use
• All-surface versatility: glass, metal, wood, masonry, and more
• Backed by a lifetime durability guarantee

Compatibility

Designed as an all-purpose silicone sealant for window and door assemblies in residential and light commercial construction and service applications.

Installation Notes

Application is typically performed by glaziers, carpenters, plumbers, or general contractors depending on the substrate and system. Surfaces must be clean, dry, and free of dust, oil, and loose material before applying the sealant. Cut the cartridge tip to the desired bead size and use a standard caulk gun for controlled application. This product is not paintable — confirm finish requirements before specifying color.