Skip to content

OSI QUAD Foam Window & Door Insulating Foam

Low-Expansion Polyurethane Foam for Window & Door Installation
Fast Shipping Easy Returns Secure Checkout

OSI® QUAD® Foam is a low-pressure, minimal-expansion polyurethane foam for insulating and sealing around windows, doors, and building penetrations. Its flexible closed-cell structure helps stop air and moisture infiltration without warping or deforming window and door frames.

$16.21
MPN: 2629456
Free Shipping Available
Ships securely. Checkout protected.

At a Glance

Quick Decision Guide

Size 16 oz.
Application Type Straw
Coverage 386 ft. at 1/2" × 1/2" Joint
Expansion Minimal
Insulation Value R4.1-R5 per Inch
Minimum Application Temperature 14°F
Trim Time Less Than 1 Hour
Structure Flexible Closed Cell

Why Choose This Product

Key Benefits

Low-Pressure Expansion

Helps prevent warping or deformation of windows and doors

Closed-Cell Structure

Helps stop air and moisture infiltration

Flexible Cured Foam

Resists cracking and drying out

Cold-Weather Application

Can be applied at temperatures down to 14°F

Fast Trimming

Can be cut or trimmed in less than one hour

Broad Material Compatibility

Bonds to common window, door and building materials

Product Information

Product Details

Specifications

Brand
OSI®
Part Number
2629456
UPC
028756959694
Product Type
Window & Door Insulating Foam
Size
16 oz.
Application Type
Straw Can
Foam Type
Single-Component Polyurethane
Expansion
Minimal
Foam Pressure
Low
Structure
Closed Cell
Insulation Value
R4.1-R5 per Inch
Coverage
386 ft. at 1/2" × 1/2" Joint
Minimum Application Temperature
14°F
Trim Time
Less Than 1 Hour
Compatible Materials
Vinyl, Aluminum, Fiberglass, Wood, OSB, PVC, Concrete, Drywall & Metal
Flashing Compatibility
Asphalt & Butyl Flexible Flashing
Straw
Reusable & Cleanable with Foam Cleaner
VOC Compliance
Federal & State VOC Regulations

About This Product

Low-Expansion Foam for Windows and Doors

OSI® QUAD® Foam is a single-component, low-pressure polyurethane foam designed to insulate and seal around window and door frames. Its minimal expansion helps prevent warping or deformation while the cured foam remains flexible without cracking or drying out.

Air Sealing and Insulation

The closed-cell foam helps stop air and moisture infiltration and provides an insulation value of R4.1 to R5 per inch. It can also be used at jambs, mud sills, header joints, corner joints, top plate penetrations, and electrical and plumbing penetrations where air leakage or heat loss may occur.

Building Material and Flashing Compatibility

QUAD Foam bonds to common building materials including vinyl, aluminum, fiberglass, wood, OSB, PVC, concrete, drywall, and metal. It is also compatible with asphalt and butyl flexible flashing for use as part of window and door installation systems.

Cold-Weather Application and Fast Trimming

The foam can be applied at temperatures down to 14°F and can be cut or trimmed in less than one hour. For cold-weather applications, the can should be stored above 41°F for at least 12 hours before use.

Straw and Gun Application Options

The 16 oz. straw can is suited for smaller jobs and includes a reusable straw that can be cleaned with foam cleaner. The 21 oz. gun cartridge is intended for larger jobs and frequent use, providing controlled bead adjustment and the ability to reseal the can for later use when used with a compatible foam gun.

Common Questions

Frequently Asked Questions

Will OSI QUAD Foam warp windows or doors?

No. QUAD Foam uses low-pressure, minimal expansion designed to avoid warping or deforming window and door frames.

What is the insulation value of OSI QUAD Foam?

The cured foam provides an insulation value of approximately R4.1 to R5 per inch.

How cold can it be when applying QUAD Foam?

QUAD Foam can be applied at temperatures down to 14°F. For cold-weather applications, the product should be stored above 41°F for at least 12 hours before application.

How soon can OSI QUAD Foam be trimmed?

The foam can be cut or trimmed in less than one hour after application.

What materials does QUAD Foam bond to?

QUAD Foam bonds to common building materials including vinyl, aluminum, fiberglass, wood, OSB, PVC, concrete, drywall, and metal. It is also compatible with asphalt and butyl flexible flashing.

What is the difference between the straw and gun versions?

The 16 oz. straw can is suited for smaller jobs and provides up to 386 linear feet of coverage at a 1/2" × 1/2" joint. The 21 oz. gun cartridge is intended for larger applications, provides up to 611 linear feet at the same joint size, and allows controlled bead adjustment when used with a foam gun.

Can OSI QUAD Foam be used as a firestop?

No. QUAD Foam is not a firestopping material and should not be used where a fireproof or firestopping material is required.

Can cured QUAD Foam be left exposed outdoors?

No. Urethane foam is affected by UV exposure. Exposed foam must be protected with an appropriate covering or coating.