Floor & Joint Repair

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Prime Bond 3900 High Mod LPL

Prime Bond 3900 High Mod LPL is a long pot life, low viscosity, high strength epoxy bonding agent designed to be used for bonding new concrete to old concrete or mixing with dry sand to make a repair mortar. It is a two-component epoxy resin adhesive.

Recommended Uses

  • Bonding new “plastic” concrete to existing concrete or steel
  • Binder for epoxy repair mortar to patch or overlay horizontal surfaces


  • High compressive, bond, tensile and flexural strengths
  • Moisture insensitive
  • Good chemical resistance
  • Conforms to ASTM C-881 Type I, II, IV and V, Grade 2, Class B and C


  • 3 gallon unit (MTO)
  • quart+ pint unit (MTO)


  • 80 square feet (7.4 square meters) per gallon at 20 mils
  • .370 cubic feet (.01 cubic meters) per gallon when mixed with 3 parts by volume Prime Blend sand for a mortar


Made in the U.S.A.