Build it tougher

WITH PRODUCTS & KNOWLEDGE FROM OSI.

We were born on the jobsite. And we're still there today working side-by-side to ensure every structure you build is Tougher Than The Elements.

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TRUSTED. PROVEN. RECOMMENDED BY INDUSTRY LEADERS.

A fully-compatible system of products that includes our highest-performing, 3-in-1 QUAD MAX sealant, the highly-flexible, low-expansion, closed-cell QUAD FOAM and the all new, QUAD BUTYL FLASH with stronger adhesion, puncture-resistant facer and easy to remove plastic liner.  Try it now!

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MOTHER NATURE HAS MET HER MATCH.
OSI’S COLOR-MATCHED QUAD MAX AND QUAD SEALANTS.

Every job has its own challenges, but finding a sealant that blends perfectly with your trim, siding or cladding material shouldn’t be one of them. OSI makes it easy with our simple-to-use tool that cross references more than 9600 manufacturer color-coated products with our three-digit color code.  If it isn’t already in stock at your preferred distributor or big-box store, they can special order the product and have it shipped to your business, home or jobsite.

FIND YOUR MATCH
LOCK-IN YOUR SKILLS. LOCK-OUT THE ELEMENTS.

The OSI Certified Installer Program delivers over 90-minutes of tutorials which include industry best-practices, jobsite tips and technical product information.  It can help any professional better understand the window and door flashing installation process.  And in addition to improving performance, reducing callbacks and increasing jobsite efficiency, OSI Certified Installers are backed by our 15-Year Limited Warranty.  Protect your install and your reputation with knowledge and training from OSI.

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