Gripset C-Mastic | WPD Group

Gripset C-Mastic is a high strength polymer modified tile adhesive designed for commercial applications where a wide range of large format tile and stone may be used. White, non-slump and developed with advanced polymer technology to provide adhesion strength for large format tiles in wall and floor applications. C-Mastic provides economical coverage and excellent non-slump properties for large and heavy tiles. Suitable for interior and exterior use on both wall and floor tiling applications.

Gripset C-Mastic provides extended open time and meets C2S1TE classifications. Also suitable for use over a range of Gripset waterproofing membranes systems.


  • 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: 30 minutes
Adjustment time: 45 minutes
Grouting time: 16 hours
Ready for use: 24 hours
Pot life: 2 hours


7m² on floors using a 10mm notch trowel


20kg Bags


White Powder


Gripset C-Mastic TDS

Gripset C-Mastic SDS