گچ كروم كبالت.
It is framework investment.
Used for inner and outer covering purposes.
Due to the favourable hardness that its easily seperated in dublicate.
Besides this, it is able to take very thin, delicate and sensite features
and can easly be removed from the mould.
It has favorable thermal expansion.
Metals easy leave after casting from investment.
Powder / Liquid ratio : 100 gr. / 15 ml.
Freezing time : 3 – 6 mins.
Hardness expansion : Approx % 2 ( with investment liquid )
Thermal expansion : Approx % 1.2