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OSI Quad Max Window, Door and Siding Sealant Black 003, 9.5 fl oz Cartridge, Pack of 12

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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, May 1
Order within 8 hours and 44 minutes
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Size: Pack of 12


Color: Black


Features

  • Tough Against All Weather: Maximum durability and application performance with strong adhesion to all materials with enhanced resistance to UV, dirt, dust, and extreme temperatures and proven wet surface application
  • Better Flexibility and Durability: Features 5x stretch and Class 50 Joint Movement capability for long-term durability in any condition with no shrinkage or bubbling
  • Match With Any Color: Free online OSI color match tool offers a match for 9,200+ manufacturer colors
  • Fast Cure For Quick Protection: Paintable in 1 hour with 24-hour fast cure for quicker protection and an effective barrier for air and moisture
  • The Professional Choice: Contractor-trusted sealant that makes a job last by providing superior protection against mother natures worst

Description

Discover mother nature’s worst nightmare: OSI QUAD MAX. Acting as the first line of defense against the elements, OSI QUAD MAX Window, Door & Siding Sealant delivers the toughness needed to make a job last. Designed for sealing around exterior/interior windows, doors and siding, QUAD MAX is a paintable caulk that bonds to a wide variety of materials such as fiber cement, cedar, brick, stone, coated aluminum, fiberglass, vinyl, PVC, stucco, EIFS, wood, glass, and flashing tapes and Kynar coatings. With proven wet and cold surface application and enhanced resistance to UV and hot and cold weather, OSI QUAD MAX is the versatile and durable caulking choice for professional contractors. OSI QUAD MAX has a fast 24-hour cure and can be painted in 1 hour (dependent on temperature, humidity, and depth of sealant applied). The best window, door and siding sealant OSI offers, QUAD MAX is flexible with 5x stretch and Class 50 Joint Movement capability so you have zero reasons to worry about a job once you’ve done it right the first time.

Color: Black


Brand: OSI - HENKEL CORPORATION


Liquid Volume: 9.5 Fluid Ounces


Full Cure Time: 24 Hours


Item Form: Paste


Brand Name: OSI - HENKEL CORPORATION


Manufacturer: Henkel Corporation


Global Trade Identification Number:


Included Components: OSI Quad Max


Unit Count: 12.0 Count


Material Type: Silane Modified Polymer


Full Cure Time: 24 Hours


Surface Recommendation: Window


Temperature Range: 0°F to 140°F Degrees Fahrenheit


Water Resistance Level: Waterproof


Color: Black


Item Form: Paste


Liquid Volume: 9.5 Fluid Ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Quality product
Size: Pack of 12 Color: White
Excellent product. Have to apply and not tool. If gap is to big have to apply second time. Try not to imbed nozzle in product or you will make a mess. Have to use paint thinner/mineral sprits to clean up.
Reviewed in the United States on November 28, 2025 by Joseph B.

  • good product
Size: Pack of 12 Color: White
It is good stuff.
Reviewed in the United States on November 24, 2025 by Deanna D

  • Great cooler weather caulk
Size: Pack of 12 Color: White
Works well in cooler weather. Not as much expansion capability as Big Stretch, but does amazing on wood window frames and corners of Hardieboard siding.
Reviewed in the United States on February 24, 2026 by Staci Goddard

  • If you want to waterproof, this is your stuff!!!
Size: Pack of 12 Color: White
I tried superstretch and that crap softened in the first rain. This stuff hardened in high moisture within hours. It is messy to work with, but does the job!!! Wear rubber gloves, use clean popsicle sticks every time you want to manipulate the product. Throw the stick out and use a clean stick one again. Change your gloves often if you get the product on them. Wear long sleeves. Wear clothes you don't care about. Try and get it right the first time. Also, another tip - get rubbing alcohol wipes if you happen to get it in a spot you don't want. Good luck!!! ... show more
Reviewed in the United States on November 21, 2025 by MonkeyLives

  • Ounces Incorrect.
Size: Pack of 12 Color: Clear
Good product but the Clear kind came in 9oz tubes rather than 9.5oz as advertised.
Reviewed in the United States on September 9, 2025 by Matt H.

  • use right away
Size: Pack of 12 Color: Clear
use within 6 months it hardens
Reviewed in the United States on March 28, 2026 by Darkyvader

  • when application matters
Size: Pack of 12 Color: White
this is expensive caulk. it's expensive for a reason. If you're a DIYer buy this for outside applications (caulking around windows) or when you want the product to last inside. It's thicker that other caulk and I find it easier to tool and, true to how its advertised, it does not yellow or crack over time. ... show more
Reviewed in the United States on November 14, 2025 by Andy Jones

  • dirt don't stick
Size: Pack of 12 Color: White
doesn't pick up dust outside when dried. great sealant!
Reviewed in the United States on May 27, 2025 by Lesley Hogstad

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