46 Western Parkway Business Park,
Lower Ballymount Road, Ballymount,
Dublin 12, Ireland.
Eircode: D12 VK61

Mon – Fri: 9:00am – 5.00pm
Closed for lunch: 1.00 - 2.00pm


SKU R165-12.5 Categories ,

1200C – 1300C

Rokk Grey Grogged Stoneware has been developed for sculptural applications and for outdoors pieces, the high grog content (40% fine grog 0-0.5mm) providing a beautiful textured surface and excellent handling qualities. Depending on the firing temperature this body takes on a range of grey hues. To retain a ‘cool grey’, fire at 1200C or below. The grey hue can become ‘brownish’ above this temperature and certain glazes will emphasise this. Supplied in a 12.5kg bag.



23.50 Excl. VAT

Out of stock


  • Firing range: 1200-1300ºC
  • Biscuit temperature: 1000ºC
  • Water content: 17%
  • Plasticity (IP Atterberg): 16
  • Carbonate content (CaCO3): 0%
  • Drying shrinkage: 5.5%
  • Firing shrinkage (1300ºC): 3.9%
  • Porosity (water absorption at 1300ºC): 2.6%
  • Dry bending strength: 2.5 N/mm2
  • Fired bending strength (1300ºC): 37.8 N/mm2
  • Thermal coefficient (25-500ºC): 59.9×10^-7ºC^-1″

Additional information

Weight 12.5 kg

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