OSI® QUAD® Window & Door Low Expansion Foam Sealant

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OSI® QUAD® Foam is a low expansion, single-component polyurethane foam sealant designed for professional window and door installation. Engineered for minimal expansion and superior insulation, it forms a durable, closed-cell structure that resists moisture, air infiltration, and mold growth.

Key Features & Benefits

Low Expansion Formula: Ideal for windows and doors without bowing frames.
Superior Air & Moisture Seal: Closed-cell structure blocks drafts and water intrusion.
All-Weather Application: Bonds in temperatures from 14°F to 100°F.
Dual Applicator Options: Compatible with both straw and foam gun applicators.
Paintable & Sandable: Finish-ready for interior or exterior use.

Specifications

Type	Polyurethane Foam
Expansion	Low Expansion
Structure	Closed-Cell
Application Temp	14°F to 100°F
Applicator Type	Straw or Gun
Paintable	Yes

Whether you're sealing gaps around windows, doors, or insulation panels, OSI® QUAD® Foam delivers dependable performance in any season. Order now to ensure airtight, moisture-resistant installs every time.

Frequently Asked Questions

What makes OSI® QUAD® Foam suitable for window and door installation?

OSI® QUAD® Foam is a low-expansion, single-component polyurethane sealant engineered to fill gaps without bowing frames, forming a durable closed-cell structure that resists moisture, air infiltration, and mold growth.

At what temperatures can I apply this foam?

You can apply OSI® QUAD® Foam in conditions ranging from 14°F to 100°F, making it ideal for all-weather use.

How do I dispense the foam?

The foam is compatible with both the straw that comes in the can and with a foam gun applicator, giving you flexibility on the job.

Can I paint and sand the foam after it cures?

Yes. Once cured, OSI® QUAD® Foam is finish-ready—it can be sanded smooth and painted to match your interior or exterior surfaces.

What type of cell structure does the foam have?

It cures to a closed-cell structure that provides superior insulation and blocks drafts and water intrusion.