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OSI Quad Tan Foam Window and Door Foam Sealant 21.1 oz
OSI Quad Tan Foam Window and Door Foam Sealant 21.1 oz
OSI Quad Tan Foam Window and Door Foam Sealant 21.1 oz
OSI Quad Tan Foam Window and Door Foam Sealant 21.1 oz
OSI Quad Tan Foam Window and Door Foam Sealant 21.1 oz
OSI Quad Tan Foam Window and Door Foam Sealant 21.1 oz
OSI Quad Tan Foam Window and Door Foam Sealant 21.1 oz

OSI Quad Tan Foam Window and Door Foam Sealant 21.1 oz

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A permanently flexible foam seal that blocks drafts and moisture around windows, doors, and more.
Osi MPN 1866185 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $16.99. Our online price is $18.99.
$18.99
Free shipping on orders over $149
Ships within 24 hours · most orders arrive in about 2 business days
Cases of 12 · Order in multiples of 12
Ships free on orders over $149 $14.99 flat shipping until your order reaches $149.

Sold by the Case

$227.88 per case of 12

Save $34.20 on orders $75+. Spend $75 or more to unlock 15% off cases plus free shipping — applied automatically at checkout.

Ships as a complete case of 12. Free shipping on orders $75 and up.

About Product Overview

OSI's Quad foam sealant fills gaps around windows and doors with a permanently flexible seal that keeps moving air, moisture, and drafts out. The tan color blends into most trim and siding, and one 21.1 oz can covers up to 611 square feet, so it goes a long way on a typical job. It bonds to wood, metal, masonry, concrete, glass, polystyrene, and more, making it a solid choice for sealing around hangers, panels, and insulation as well as standard window and door gaps.

  • 21.1 oz can, tan color
  • Covers up to 611 sq ft
  • Permanently flexible and moisture resistant
  • Rated for indoor and outdoor use
  • Bonds to wood, metal, masonry, concrete, glass, and polystyrene
  • Clean up with mineral spirits; not paintable

The Details Specifications

Special Handling Special handling and shipping requirements apply. UN #UN1950.
Brand Osi
UPC 028756960621
Case Pack Quantity 12 per case
Retail Unit Quantity 12
Dimensions (L × W × H) 12 × 8 × 12
Weight 21 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to open the other tab. Everybody does. We'd rather say so than pretend otherwise — so open it. We'll wait.

When you're over there, check four things before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Osi. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

We're not always the cheapest.

Sometimes you'll find it for less. Sometimes you'll find it for more. On a lot of brands the number is identical everywhere it's sold legitimately — the manufacturer sets a minimum advertised price and every authorized dealer holds it. When a price sits well under that, it's worth asking why before it's worth celebrating.

How pricing actually works
Authorized dealer · Osi

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Why we built NHG
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Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

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The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

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