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OSI® QUAD® Window, Door & Siding Sealant

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13.00 LBS

Product Description

Strong reputations come from strong performance. And no other wet application sealant has a stronger reputation than OSI QUAD®. QUAD's all-season formula and proven wet surface application have positioned it as the leading cold weather construction sealant for exterior windows and door installations, fiber-cement and vinyl siding, PVC trim, roofing and gutters. When it comes to toughness, nothing has stood the test of time, and performance, quite like QUAD®.

An all-season weather resistant sealant designed for superior performance on exterior window, door and siding applications.


Recommended for the Pros, by the Pros

QUAD is the preferred cold weather construction sealant for sealing around exterior windows and doors, fiber-cement and vinyl siding, PVC trim, roofing and gutters.  It bonds without a primer to most common substrates like cedar, painted or stained woods, fiberglass, vinyl, coated aluminum, steel, metal, brick, masonry and concrete.

For Professional Results

Do not use for sealing expansion joints, including butt joint.  Not compatible with polystyrene foams and polypropylene or polyethylene plastics.  Do not use in applications requiring continuous water immersion.  Do not use as a traffic bearing sealant, on log homes or inside occupied structures.   For best results, should not be used in applications less than ¼” in depth in order to maintain the integrity of the sealant.  Do not use to fill nail holes.  For joints deeper than 3/8” (9.5 mm), a backing material should be used.  Tooling, feathering or smearing of the sealant is not necessary or recommended.


  • All-Weather, Superior Performance
  • Permanently Flexible with 3x Stretch
  • 20ºF - 120ºF Application
  • Wet Surface Application
  • UV- and Water-Resistant - Will Not Yellow or Crack
  • Resists Dust & Dirt Collection
  • Paintable
  • 4" Professional Spout


  • 10 fl oz (295 ml)


  • 3500 Color Matches and Counting! (see below)


Clean Up

  • Mineral Spirits



Technical Data Sheet

MSDS Website Link

QUAD Product Brochure

QUAD Window & Door System Brochure




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