Jewelry Investment Casting Powder of HK-20

The investment is for direct use in (1)stone(diamond)place wax setting (2)solid gold,karat gold,silver and brass alloy casti Features:1  The casting mold can bear temperature as high as 830oC(1526oF)~850oC(1562oF), and has high thermal shock resistance. It can be used in precision casting of noble metal with melting temperature under 1300oC2  The investment contains oxidation-resisting microcrystals. It prevents casting surface from oxidizing during high temperature melting metal pouring in.3  Applicable in up to 14karat gold added high temperature alloy (such as palladium), silver alloy superior line of jewelry casting.4  Mold cavity duplicates are highly clear and accurate; the casting surface is extremely smooth, no any male-female face.5  Automatically collapsed when dip into water, easy to pattern drawing.

Model:	HK-20
Water/Powder Ratio:	38-40:100
Working Time:	9-10 min
Initial Set Time:	12-15 min
Thermal Expansion @730:	0.72%
Setting Expansion @2hrs.:	0.50%
Thermal Compressive strength (730×1hrs):	0.71 MPa
Setting Compressive strength (2hrs.):	1.30 MPa
Max.Burnout Temp.:	830(1,526°F)

Jewelry Investment Casting Powder of HK-20