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Henkel White Urethane Acrylic Sealant OSI

Brand: Henkel Mfg#: 1256934
Product#: 27923311001
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OSI® H2U™ high performance sealant is a high performance sealant designed for the siding and window industries. This superior acrylic urethane formula has better adhesion, flexibility and durability than most sealants, and cleans up easily with soap and water. This water based, low gassing formula is ideal for use indoors and provides the durability, flexibility and adhesive strength needed for outdoor use. OSI® H2U™ dries to a glossy sheen and when fully cured it is paintable and will resist surface mold and mildew


  • Permanently flexible
  • Ultra low VOC content
  • Will not harden, crack or separate over time
  • Matches most siding and window products
  • Non flammable, easy soap and water clean up, low odor for interior projects and environmentally friendly
  • Qualifies for LEED points, meets stringent sState and federal VOC regulations


  • Brand: Henkel
  • Functional Cure: 1 - 14 days
  • Composition: Limestone, Titanium Dioxide, Ethylene Glycol
  • Drying Time: 5 min Open, 30 - 60 min Tack Free
  • Viscosity: 200000 - 300000 cP
  • pH Range: 7.3 - 8.5
  • Color: White
  • Form: Non-Slumping Paste
  • Packing Type: Plastic Cartridge
  • Application Temperature: 40 deg F
  • Media: Carbon Dioxide, Foam, Powder Water Fog
  • Capacity: 10 fl oz
  • Shore Hardness: 24 Shore A
  • Tensile Strength: 302 psi
  • Coverage: 30.6 ft
  • Odor/Scent: Mild Acrylic
  • Base Type: Acrylic Urethane Latex
  • Specific Gravity: 1.267
  • Applicable Materials: Fiber Cement, Vinyl Siding, Hardboard, Pressboard
  • Resists: Mold, Mildew
  • VOC Content: 0.5 %
  • Standards: ASTM Specified, VOC Compliant, Green Guard Certified
  • Type: High Performance, Paintable
  • Usage: For Outdoor Projects or for High Humidity Applications