Brand: Merckens

Merckens
Graukarton
Grey board is manufactured in 4 grades: 69, 72, 80 and 95 (with increasing surface smoothness). The most commonly used grade is grey board 72. The number of the grade indicates the specific gravity, for example GK 69 = 0.69 g/cm³. Grey board is an interesting product. Beginning with its raw...