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OSI Quad Max Mountain Sage Elastomeric Polymers Caulk Sealant 9.5 oz

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Introducing the OSI Quad Max Mountain Sage Elastomeric Polymers Caulk Sealant in a convenient 9.5 oz cartridge. Engineered to seal gaps that move with your home, this Mountain Sage…

Osi MPN 1869690
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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
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About Product Overview

Introducing the OSI Quad Max Mountain Sage Elastomeric Polymers Caulk Sealant in a convenient 9.5 oz cartridge. Engineered to seal gaps that move with your home, this Mountain Sage shade blends into greens and earth tones while delivering dependable performance for years to come. It’s not just about a tight seal—it’s about a seal that lasts.

What sets Quad Max Mountain Sage apart

  • Permanently flexible elastomeric polymers handle expansion and contraction without cracking, keeping joints watertight even as temperatures shift.
  • Moisture resistant and mildew resistant—ideal for damp environments like bathrooms, kitchens, and exterior areas where moisture exposure is common.
  • Paintable finish lets you harmonize the seal with your décor or refresh it after painting surfaces nearby.
  • Indoor and outdoor use—a versatile sealant that stands up to the elements on siding, trim, windows, and more.
  • Color Mountain Sage—a green-tinged shade designed to blend with natural palettes and exterior finishes.
  • 9.5 oz cartridge with a practical coverage area of 29.1, delivering ample sealing material for typical home projects.
  • Not fire or high-heat rated—suitable for everyday sealing tasks where extreme heat or fire resistance isn’t required.

Ideal use cases

  • Sealing around windows and doors to block drafts and moisture
  • Exterior trim and siding joints that face weather exposure
  • Bathroom and kitchen joints where water exposure is common
  • Expansion joints in indoor and outdoor living spaces

How to get the best results

  1. Prepare the joint by cleaning away dust, dirt, and old sealant. The surface should be clean and dry for optimal adhesion.
  2. Cut the nozzle to the desired bead size and load the cartridge into a caulk gun.
  3. Apply a steady bead along the joint, maintaining even pressure for consistent coverage.
  4. Tool the sealant with a damp finger or a compatible tooling tool to achieve a smooth, concave finish. Wipe away excess material as needed.
  5. Allow to cure according to the product label, then paint if desired to match surrounding surfaces.

Product specifications at a glance

  • Brand: OSI • Sub Brand: Quad Max
  • Product Type: Caulk Sealant • Material: Elastomeric Polymers
  • Color: Mountain Sage • Color Family: Green
  • Container Size: 9.5 oz • Coverage Area: 29.1
  • Indoor/Outdoor: Indoor and Outdoor
  • Mildew Resistant: Yes • Moisture Resistant: Yes • Paintable: Yes
  • Fire/High Heat Resistant: No

The Details Specifications

Brand Osi
SKU 1045543
UPC 028756965589
Unit 0
Case Pack Quantity 12 per case
Retail Unit Quantity 12
Unit of Measure 1 EA
Dimensions (L × W × H) 8 × 6 × 13
Weight 13 lbs
Cubic Feet 0.03303 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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