Gripset C-Mastic is a high strength polymer modified tile adhesive designed for commercial applications.White and non-slump, C-Mastic has been developed with enhanced fibre technology to provide superior shear strength for large format tiles. Suitable for interior and exterior use on both wall and floor tiling applications.

  • Flexible
  • Non-slump
  • High Strength
  • C2TES1 classification
  • Accommodates shrinkage movement associated with early age concrete, renders and screeds
  • Extended Open Time


  • Direct tiling over Gripset under tile waterproof membranes and systems
  • Wall and floor tiling
  • Internal and external areas
  • Large format tiles
  • Over early age concrete, screeds and renders


  • Concrete
  • Masonry renders
  • Screeds
  • Plasterboard linings
  • Fibre cement surfaces
  • Gripset membrane systems

Dry Times
Open time: 35 minutes
Adjustment time: 60 minutes
Grouting time: 8 hours
Ready for use: 24 hours
Pot life: 2 hours

Coverage of Gripset C-Mastic will be:

  • 12m² on walls using a 6mm notch trowel
  • 8m² on floors using a 10mm notch trowel


20kg Bags