PESTBLOCK

Effective and easy to use, Great Stuff™ Pestblock Insulating Foam Sealant blocks insects and pests from entering the home by sealing gaps, cracks and holes while improving energy efficiency all around the home.

Product Details

Great Stuff™ Pestblock Insulating Foam Sealant is a ready-to-use foam sealant that expands up to 1 inch to take the shape of gaps, creating a long-lasting, airtight and water-resistant seal that blocks out spiders, ants, cockroaches, mice and more from entering the home without the use of pesticides.

Features and Benefits

Blocks critters, bugs and other pests from your home
Pesticide-free
Won’t harm bees
Expands to fill, seal, and insulate gaps up to 1 inch (25mm)
Forms a long-lasting, airtight, weather-resistant seal
Adheres to wood, metal, masonry, glass and most plastics
Interior/exterior use¹
Tack-free in 5-15 minutes²; trimmable in one hour
Paintable, stainable and sandable
Grey-colored foam for easy identification
UL classified CCMC 13074-L

¹Skin of cured foam can discolor if exposed to natural light. Paint or coat foam for the best results.
²70 ± 5°F and 50 ± 5 % RH, 1-inch bead diameter, 6-inch length. The cure rate is dependent on temperature, humidity, and size of the foam bead.

Uses

Great Stuff™ and Great Stuff Pro™ products can be used in a variety of interior and exterior applications, most commonly in air sealing and home retrofit applications.

Where to use Great Stuff™ Big Gap Filler

Exterior openings
Hard to reach spaces
Rim joist
Pipe penetrations

Where to use Great Stuff™ Fireblock

Pipe penetrations
Exterior of electrical outlets
Exterior of electrical penetrations
Pipe penetrations
Bathroom fans
HVAC penetrations

Where to use Great Stuff™ Gaps & Cracks

Rim joists
Attic penetrations
Dryer vents
Pipe penetrations
Sill plates
Exterior of electrical outlets

Where to use Great Stuff™ Multipurpose Black

Exterior of Electrical lines
HVAC penetrations
Small gaps and cracks in the attic or garage
Air conditioning lines, refrigerant lines, gas lines – service penetrations
Repair of masonry walls, sidewalks, and porches
Outdoor landscaping applications
RV and vehicle undercarriages3
Trailer/transportation repairs3
Marine sealing applications*

*Note: Great Stuff™ Insulating Foam Sealants are not for use in aviation, or food/beverage contact, or as structural support in marine applications.

Where to use Great Stuff™ Pestblock

PVC Pipe Penetration
Exterior of electrical cable lines
Water faucet penetration
Attic hatch frame
Rim joists
Sill plates

Where to use Great Stuff™ Pond & Stone

Cap stones in retaining walls
Cracks and holes in trees
Rocks with direct water flow, such as waterfalls

Where to use Great Stuff™ Window & Door

Doors and their rough openings
Windows and their rough openings

Where to use Great Stuff Pro™ Gaps & Cracks

Electrical wire penetrations
Gas line penetrations
Plumping and pipe penetrations

Where to use Great Stuff Pro™ Pestblock

Under baseboards and attic hatch frames
Hose bibs
Dryer vents
PVC pipe penetrations
Plumbing penetrations

Where to use Great Stuff Pro™ Wall & Floor

Bonding Plywood and OSB subflooring to wood joists
Bonding foam panels, drywall, OSB and plywood to wood framing
Bonding masonry, tile and concrete substrates to OSB, plywood, foam panels and drywall

Where to use Great Stuff Pro™ Window & Door

Windows and their rough openings
Doors and their rough openings

Paint & Supplies

DuPont Great Stuff™ Pestblock Insulating Foam Sealant

3M™ ALL WEATHER Duct Tape 1.88 in. x 40 Yard

Kaps Tex KT-LT0608B BLU LD Poly Tarp

C.H Hanson Barricade Tape-CAUTION 500'x3"x5Mil Reinforced