GRANUCOL® SIG tinted quartz sand

  3
2,0-3,5 mm
5G
1,6-2,5 mm
5F
1-1,8 mm
7
0,6-1,2 mm
8
0,3-0,8 mm
9
0,1-0,6 mm
White 1 + + + + + +
Brick red 5 + + + + + +
Blue 10 + + + + + +
Green 11 + + + + + +
Orange 5 + + + + + +
Brown 10 + + + + + +
Gray 3 + + + + + +
Black 20 + + + + + +
Yellow 4 + + + + + +
Brown earth 4 + + + + + +

High purity quartz sand grains are painted at high temperature with silicate coating. The resulting coating is highly resistant and is connected to the receiving grain material.