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Polysulfide Joint Sealant

Product #1964

Flexible Duel Component Joint Sealant


Product #1964 Two-Component Polysulfide Joint Sealant is an elastomeric two-part, polysulfide caulking and sealing material. Product #1964 is a chemically cured polysulfide sealant that provides excellent resistance to bioactivity and the harsh conditions encountered in wastewater treatment plants. Product #1964 cures at normal temperatures creating a tough elastomeric seal with strong adhesion to most dry construction surfaces.

Product #1964 Polysulfide Joint Sealant cures by chemical reaction which means it cures at the bottom of the joint as quickly as on the top. It will handle repeated movement caused by the expansion and contraction of the joint it fills. It remains flexible with the changes of the seasons. It has excellent water, solvent, and chemical resistance. Product #1964 Polysulfide Joint Sealant will handle joint movements up to ±25%.


  • Service Temperature from -50° to 190°F (-45°C to 87°C)
  • Cures to a flexible rubber that provides a watertight seal
  • Bonds concrete, masonry, metals, glass, wood, and other many other construction materials
  • Formulated to give resistance to bioactivity and chemical attack.
  • Resistant to splash & spill contact with jet fuel
  • Perfect for dynamic joints subjected to chemicals
  • Self-Leveling


  • Runways and Tarmacs
  • Jet Fuel Storage Secondary Containment Structures
  • Waste Water Treatment Plants
  • Road Salt Storage Sheds
  • Parking Garages and Driveways
  • Concrete Swimming Pool Joints
  • Concrete Decks
  • Sidewalks
  • Parking Lots for Aircraft and Automobiles
  • Joint sealant between similar/dissimilar materials
  • Glazing & caulking
  • Can be used in most normal construction joints
  • Can be used in long term exposure to water


Meets ASTM C920, Type M, Grade SL, Class 25, Use NT, M, G, A and O


Packaged in 1.5 (5.68L) units.


This is a made to order item with a 45 unit (60 gallons mixed) minimum order

Proper mixing and installation is critical to the optimal success of all products.  See Installation Tips, Techdata, & MSDS for more details on our products.  Be sure to contact us with any questions and/or concerns that you have.

For more information please contact:

A Division of Epoxy Systems, Inc
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