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OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz
OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz
OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz
OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz
OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz
OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz
OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz
OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz
OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz
OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz
OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz

OSI Quad Max Musket Elastomeric Polymers Caulk Sealant 9.5 oz

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Stays permanently flexible through hot summers and cold winters, so joints stay sealed instead of cracking.
Osi MPN 1868711
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $11.99, average $13.99
In-Store Exclusive

This one's worth the trip to the store.

Brands like Weber, Milwaukee, Yeti, and DeWalt restrict where their products can be sold online — and for good reason. In-store buyers get authentic products, full manufacturer warranty, and access to pricing that simply isn't allowed to be advertised on the web.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →

About Product Overview

OSI Quad Max is a 100% silicone sealant built for joints that need to move without cracking or letting water in. In Musket, a warm brown, it blends into wood trim, siding, and other earth-toned surfaces while staying permanently flexible through seasonal expansion and contraction. Use it indoors or outdoors on any job where moisture and mildew are a concern - window frames, door casings, trim work, and general exterior sealing.

  • 9.5 oz cartridge, covers approximately 29.1 sq. ft.
  • Permanently flexible elastomeric polymer formula
  • Moisture and mildew resistant
  • Paintable once cured
  • Rated for indoor and outdoor use

The Details Specifications

Brand Osi
UPC 028756967842
Case Pack Quantity 12 per case
Retail Unit Quantity 12
Dimensions (L × W × H) 8 × 6 × 13
Weight 11 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
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.

What we offer
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Their Counter
Try local first · we'll wait

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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About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a familiar banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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