Black Knife Grade Polyester Glue

Black Knife Grade Polyester Glue


To see pricing and place order please Request an Account and Sign in.


  • Tenax Black knife grade is a high quality polyester mastic used to horizontally repair, rebuild, glue and fill marble, granite and engineered stones.
  • Will cure shiny and is very polishable.
  • Not suitable for temperatures below 32°F.
  • Recommended for interior use.
  • Other colors available upon special request.
Gel time in bulk at 77° F 4-5 min
Tacky Free time at 77° F 25-30min
Working time at 77º

60-80 min

Temp range for use after hardening 32º to 230º
Ratio of glue to hardener 100/2-3% in weight