WINKING  EPOXY  RESIN  COMPONENTS
WK-838AA/WK-838BB

PROPERTIES OF UNCURED MATERIAL

1.  Appearance：               838AA-1        Black  liquid
                                           838BB        Pale yellow liquid

2.  Density：                   838AA-1      1.05
                                         838BB        0.95
3.  Mix Ratio：                            838AA-1/838BB：100/60
4.  Life（mixture）                        25℃ ： 6 Hours.
5.  Gel Time：                             25℃：24 Hours.80℃/30mins.
6.  Curing Condition：                     25℃：30 Hours.80℃/1Hour.

PROPERTIES OF CURED………………… 7 DAYS CURED @25℃
H. D. T.                                             ASTM   D   648     ℃              - -
Flexural Strength                                ASTM   D   790     Kgf/㎜          - -
Tensile Strength                                    Kgf/㎜          - -   
Adhesive Strength                                 Kgf/㎝          80
Hardness                                            ASTM   D  2240    Shore D          50-70                                                            
Volume Resistance                             ASTM   D   257    ohm-cm           ＞10
Dielectric Constant                            ASTM   D   150    @25℃, 1 KHz     3.9
Dielectric Strength                                 2 ㎜.              KV/㎜           22.0
Moisture absorption                          ASTM   D   570    @100℃/4 Hours. ＜0.1
Thermal shock                                      ASTM D 390        10 cycles        -55 to 130℃