Low-Expanding Polyurethane Foam
Low-Expanding Polyurethane Foam
A versatile, one-component, gun-grade polyurethane foam designed for window and door and retro-fit installations. Fills, insulates and seals around windows, door frame joints, base plates, joints, penetrations, cracks and much more. ExoAir® LEF is CFC-free and can be applied over a wide temperature range.
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Thermal Barrier
Insulates gaps around windows and doors
Minimal Expansion
Low pressure so windows won't bow or warp
Sound Barrier
Reduces air flow and noise around penetrations and through cavity walls
Low Temperature Application
Can be installed in temperatures ranging from 14 to 95 °F (-10 to 35 °C)
Fast Installation
Easy-to-use aerosol spray; tack-free in 10 minutes and cuttable in 45 minutes
ExoAir® LEF Is Best For
Willseal® Seismic
Pre-Compressed Expansion Seal
Securock® ExoAir® 430
Pre-Applied Fluid Synthetic Air & Vapor Permeable Membrane to Gypsum Exterior Sheathing
ExoAir® 230 / 230LT
Fluid-Applied, Synthetic Air & Vapor Permeable Membrane
ExoAir® 110AT
Self-Adhered Air and Vapor Barrier Membrane
ExoAir® 130
Fluid-Applied, Synthetic Air and Vapor Retarder Membrane
