Primo Pro PRGF4005 with High Grog Grey Clay is a highfire grogged “Gris” body bearing 40%grog 0-0.5mm. Designed for artistic ceramics, it is ideal for sculpture, murals and pieces for Raku. Known as “Gris” because of Its raw colour (Spanish word that means “grey”).
The high content of grog confers expression possibilities and an excellent behaviour during drying and firing. Its amazing firing colour, with different tones of light and brown, highlights the relief of the piece, and becomes an ideal artistic mean of expression.
Available in extruded body (moist form).
Primo Pro PRGF4005 with High Grog Grey Features
Firing range: 1240-1300ºC
Biscuit temperature: 1000ºC
Water content: 21%
Plasticity (IPAtterberg): 19
Carbonate content (CaCO3): 0%
Drying shrinkage: 6.2%
Firing shrinkage (1300ºC): 4.6%
Porosity (water absorptionat1300ºC): 7.4%
Dry bending strength: 3.7N/mm2
Fired bending strength(1300ºC): 25.4N/mm2
Thermal coefficient(25-500ºC): 54.6x10^-7ºC^-1