Arm yourself against the elements with OSI QUAD Window, Door & Siding Sealant. OSI QUAD Window, Door & Siding Sealant (1638674) is an all-season formula designed for superior caulking performance on exterior window, door and siding applications, fiber-cement and vinyl siding, PVC trim, and much more. It can be applied to wet or dry surfaces, even at freezing temperatures and, unlike other sealants, it resists dirt and dust collection, yellowing and water washout. OSI QUAD bonds without a primer to most common substrates like cedar, painted or stained woods, fiberglass, vinyl, coated aluminum, steel, metal, brick, masonry and concrete. With resistance to UV and extreme temperatures (20°F to 120°F) and proven wet surface application, OSI QUAD is the versatile and durable choice for professional contractors. OSI QUAD is self-tooling and once cured is paintable with latex paints. Our color specialists work closely with leading window, door and siding manufacturers to ensure perfect color matches. OSI QUAD is composed of elastomeric polymers and high quality synthetic resins. OSI offers an arsenal of adhesives, caulks, and outdoor construction sealants for the true professional. OSI: Tougher Than the Elements.
Strong adhesion to primary window, door and siding building materials
100% waterproof with proven wet and cold surface application
Class 25 for long-term elasticity and durability in any condition
Self-tooling formula saves time and provides professional finish every time
Paintable to perfectly blend in with surrounding materials
Superior resistance to UV, water, dirt, dust, and extreme temperatures (20°F to 120°F)
Match with any color: Free online OSI color match chart tool offers a match for 9,200+ manufacturer colors
VOC and CARB Compliant
Quad Window & Door System: Use in conjunction with OSI QUAD Foam and OSI Butyl Flash for the toughest air and moisture barrier to maximize energy efficiency
OSI offers online and offline resources like best practice guides, and installation programs with limited warranty
Had a tube split and thought it was because it was old caulk. Bought two new tubes and started to apply in dry, 80 degree weather. First tube split the length and filled gun with sealant. Spent more time cleaning gun than job should have taken and still have to replace the caulk gun, rod bent and barely advances even at high speed setting. Where do I send the bill for reimbursement? Have applied hundreds of feet of different caulks without any problems until this caulk.
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Apr 22, 2022
Good product but messy.
After I had a 2nd tube burst/leak I decided to leave a review.
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Response from OSI - Henkel CorporationJun 23, 2022
Thank you for choosing OSI for your project. If you ever need help using our product, feel free to reach us at 1-800-624-7767.
Recommended
Sep 21, 2021
Painter
It is of very good quality
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Response from OSI - Henkel CorporationSep 22, 2021
Thank you for taking time to post your feedback. We are glad that OSI QUAD Sealant was up to your standards. Please let us know if we can ever be of assistance. -The Henkel/OSI Team, 1800-624-776
Verified Purchase
Recommended
Jun 18, 2019
I've had this in place for about 2 weeks. This was recommended by a high end window installer wit...
I've had this in place for about 2 weeks. This was recommended by a high end window installer with the highest recommendations. I'd rather pay a little more and get better lifetime coverage, than to keep reapplying every few years. This is really tough stuff and awesome to apply. Does not shrink or peel, which is very important to say the least. Another good feature is that it has a self puncturing seal, so you don't have to insert a tool to puncture the seal initially. I'd recommend wearing vinyl gloves, once this dries on your hands it's very tough to get off.
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DIY
Verified Purchase
Recommended
4 found this review helpful
Oct 31, 2018
I used it to install glass trim around some time together it is easy to work with and bonded inst...
I used it to install glass trim around some time together it is easy to work with and bonded instantly. Great product!
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Verified Purchase
Recommended
2 found this review helpful
Sep 4, 2018
The sealant was very effective and flowed from the tube very evenly. I provided the coverage tha...
The sealant was very effective and flowed from the tube very evenly. I provided the coverage that I needed. I would chose this brand again for future projects.
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Verified Purchase
Recommended
1 found this review helpful
Dec 14, 2017
Very viscous consistency straight out of the tube. At first I thought I had purchased some old ca...
Very viscous consistency straight out of the tube. At first I thought I had purchased some old caulk but after reading other reviews I believe this product is just normally very stiff. I bought this for sealing under the mounting flanges of new windows but it is so stiff that it causes the flange to buckle between nails. Pushing on the flange helps the caulk to spread but I still ended up with a "wavy" flange. It probably would work great for applications where compression isn't necessary. It cures to a flexible, rubbery seal.
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4 found this review helpful
Dec 29, 2016
Used this to seal around some stained wood. The color is definitely not brown but more grey. As a...
Used this to seal around some stained wood. The color is definitely not brown but more grey. As a sealant it's great, but the color is not as advertised.
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7 found this review helpful
Oct 4, 2016
Very good caulking
Excellent product. Make sure you allow plenty of cure time before you want to paint, minimum required is 7 days. Use mineral spirits to clean up, the only thing that works.
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DIY
Verified Purchase
Recommended
5 found this review helpful
Jun 23, 2022
This is a great urethane caulk for exterior usage, but...
This is a great urethane caulk for exterior usage, but it needs to be said that this caulk is probably best used by "professionals" because it is not "workable" and mistakes are difficult at best to fix or remove. Urethane caulk is NOT water soluble, so it doesn't come off of things like brick, clothing, hands, etc. All that being said, if you want a great caulk to seal out the weather, forever, this is the go to product.
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Response from OSI - Henkel CorporationJun 23, 2022