640 Thermoplastic

NuFlex® 640 Thermoplastic Sealant is a one part, co polymer, high performance sealant. The cured sealant exhibits good physical properties including excellent adhesion to a variety of construction materials including marine surfaces. It possesses rubber-like characteristics and can be compressed or extended.

NuFlex® 640 Thermoplastic Sealant is also non-staining and is used in the construction field for sealing and adhesive applications.NuFlex® 640 is available in a non-sag consistency for application by caulking gun, in both vertical and horizontal joints.

  • Excellent adhesion to most substrates.
  • Cures in 24 hours.
  • Paintable.
  • Non-staining.
  • Available in a plastic cartridge.
  • Ideal for gutters, eaves troughs, flashings, and siding!
  • Used in the construction field for sealing and adhesive applications.
  • Used for face bedding and cap bead in glazing applications and sealing mitre joints in windows.
  • Sealing window and door caps, fascias, F-channels, J-trims, crown moldings, perimeter seals, truck trailers and modular homes.
  • Applications that require superior adhesion, flexibility and paintability to vinyl, glass, aluminum, brick, concrete, metal and wood.
  • Remains permanently flexible.
  • Will not sag on overhead or vertical applications.
  • Paintable.
  • Multiple use.
  • 300 mL (10.1 fl.oz.) cartridge.
  • 12 cartridges per case.
  • 144 cases per skid.
  • Available in larger sizes.*
  • Available colors include: clear, white, and black.
*Special order items may require lead times and minimum order quantities.