Aerosol Expanding Foam Sealant 1474

Product Description

New & Improved EXPANDO permanently seals holes and cracks while spot insulating wherever it is used. It expands up to three times its original volume to seal out air, drafts, dust, moisture and pests. When cured, EXPANDO is waterproof and weather resistant. Bonds to wood, masonry, glass and most plastics. It is tack free in about 15 minutes and cures fully in 8 hours, depending on temperature. Using this product to fill any openings or cracks will greatly reduce heating and air conditioning costs.

Product Features

  • Permanently seals cracks and holes
  • Waterproof and weather resistant
  • Insulates and reduces noise
  • Seals drafts
  • 1” thickness yields R-4 to R-5 Insulating Factor
  • Has extension tube to seal holes in hard-to-reach places
  • One 12-ounce can equals the volume of 20 tubes of regular caulk
  • Can be trimmed, sanded and painted
  • Can be used at temperatures up to 245°F
  • Blocks radon gas


  • Ducts
  • Water Supplies
  • Foundations
  • Pipes
  • Vents
  • Windows
  • Plumbing Fixtures
  • Electrical Outlets
  • Doors
  • Drains
  • Main Electrical Panels
  • Air Conditioners

For Use By:

  • Bus Garages
  • Fleet Operations
  • Housing Authorities
  • Correctional Facilities
  • Sewage Plants
  • Colleges/Universities
  • Freight Carriers
  • Industrial Plants
  • Military Facilities
  • Water Treatment Plants
  • Contractors
  • Hospitals
  • Utilities
  • Nursing Homes
  • Warehouses
  • Factories
  • Hotels/Motels
  • Municipalities
  • School Systems
  • Manufacturing Plants

Directions for Use

EXPANDO is FLAMMABLE during dispensing. Shut off all gas pilot lights, electrical igniters and other sources of ignition before and during use.

Shake can vigorously for at least one minute before use. Screw trigger/straw assembly on to valve. Holding can UPSIDE DOWN, slowly pull trigger until foam flows smoothly. Fill crack or hole 1/3 full, allowing room for expansion as it dries and avoiding wasting any of the product.

NEVER activate valve with can right side up – propellant will escape. Clean uncured foam immediately with paint thinner, acetone or nail polish remover.

See label for complete directions.

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