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

OSI Quad Max Sunburst Elastomeric Polymers Caulk Sealant 9.5 oz

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Stays flexible and mildew-free through weather changes, indoors or out, in a warm Sunburst tone that blends right in.
Osi MPN 2937885
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 pure silicone caulk built to handle both indoor and outdoor sealing jobs where flexibility and moisture resistance matter. In Sunburst, it blends into wood tones and trim while staying put through weather and temperature swings. Made from elastomeric polymers, it stays permanently flexible instead of cracking or shrinking over time, and it resists mildew in damp spots like bathrooms, kitchens, or exterior joints.

  • 9.5 oz cartridge, covers approximately 29.1 linear feet
  • Color: Sunburst (brown family)
  • Paintable once cured
  • Moisture and mildew resistant
  • Rated for indoor and outdoor use
  • Made in the USA

The Details Specifications

Brand Osi
UPC 028756953906
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
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

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
Free Local Pickup Ship to your hometown store
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Ships Nationwide From our distribution network
Independent Network Real hardware stores
$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
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.

Find a local store →
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Independent hardware retailer? Join the network →
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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