Ddp 99112809 Pestblock Smart Foam Sealant 12 Oz

Product Description

The DDP SPECIALTY ELECTRONIC MATERIALS 99112809 is a 12 oz low-pressure expanding foam sealant designed to block insects and rodents from entering structures through gaps, cracks, and holes. Sold under the Great Stuff Pestblock line, this formula creates a long-lasting, airtight, and water-resistant barrier at common pest entry points. The foam is formulated with a bitter ingredient to deter gnawing by mice and other rodents. It is dispensed directly from the can and expands to fill irregular voids. Installers, contractors, and pest control professionals use it as a mechanical barrier component in integrated pest management and building envelope sealing applications.

This product is suited for residential and light commercial applications where air sealing and pest exclusion are required simultaneously. It is applied around pipe penetrations, utility entries, foundation gaps, window and door frames, and any structural opening where insects or small rodents commonly enter. The low-pressure formulation makes it appropriate for use around delicate framing and finished surfaces without causing excessive expansion damage. It contains no pesticides, so it functions purely as a physical barrier rather than a chemical treatment.

Key Features

• Low-pressure formula minimizes overfill risk near finished surfaces and framing
• Airtight and water-resistant cured barrier reduces both pest entry and air infiltration
• Formulated with a bitter ingredient to discourage rodent gnawing through the cured foam
• Blocks ants, roaches, spiders, bees, mice, and other rodents at entry points
• Contains no pesticides — suitable for use in areas where chemical treatments are restricted
• Ready-to-dispense 12 oz can with included dispenser nozzle

Compatibility

Designed for use as a gap and crack sealant in residential and light commercial construction, pest exclusion, and weatherization applications where an expanding foam barrier is required at structural penetrations and openings.

Installation Notes

Application is typically performed by contractors, weatherization technicians, or pest control professionals as part of a building envelope or exclusion program. Wear gloves and eye protection during application, as uncured foam bonds aggressively to skin and surfaces. Ensure the application area is clean and free of loose debris before dispensing. Cured foam should not be left exposed to UV light for extended periods without a finish coat, as sunlight degrades the cured material over time.