>> HK-1000 jewelry investment powder

HK-1000 jewelry investment powder

Name：HK-1000 jewelry investment powder NO.：HK-1000

Features

1、High quality and low price, high performance/price ratio, can lower cost in a big
     scope for larger processing factories.

2、The casting mold can bear temperature of 720℃(1328℉), and has higher thermal
     shock resistance. Casting mold can endure quick and direct temperature rising,
     while the mold cavity will not be fractured.

3、Mold cavity duplicates are very clear and smooth. No apparent drop marks, metal
     beads and “male-female face” on casting surface.

4、Applicable in karat gold and lower melting temperature silver, copper-beryllium,
     brass and aluminum alloy jewelries and parts casting.

5、Automatically collapsed when dip into water, easy to pattern drawing.

Packaging specifications

货号（No.）	规格(Packaging)
2007	45kg(100lb.)/bags(袋)
2008	22.5kg(50lb.)/bags(袋)

Technical Informations：

Model:	HK-20	HK-2000	HK-1000
Water/Powder Ratio:	38-40:100	38-40:100	39-40:100
Working Time:	9-10 min	9-10 min	11-12 min
Initial Set Time:	12-15 min	12-15 min	13-16 min
Thermal Expansion @730℃:	0.72%	0.75%	0.78%
Setting Expansion @2hrs.:	0.50%	0.50%	0.60%
Thermal Compressive strength (730℃×1hrs):	0.71 MPa	0.69 MPa	0.62 MPa
Setting Compressive strength (2hrs.):	1.30 MPa	1.27 MPa	1.19 MPa
Max.Burnout Temp.:	830℃(1,526℉)	750℃(1,382℉)	720℃(1,328℉)