供应WK-921A/H电子*组件灌封胶

WK-921A/92IH

(For  P . C  BOARD  *TENG)

 

PROPERTI*  OF  UNCURED  MATERIAL:     

                                              WK-921A                          WK-921H

1.Appearance:                

2.Viscosit(@25℃)         

3.Density                                                               

4.Mix Ratio                      

5.Life ; (mixture) 100 Gm ,   

6.Gel Time                   

7.Curing Condition                          

PROPERTI*  OF  CURED (Cured  Conditions……..7  days  cured   @25℃)

H.  D.  T.                   ASTM    D   648        ℃               105

 

Flexural Strength              ASTM    D   790         Kgf/ mm           8.0

Tensile  Strength              ASTM    D   638                -          4.5

Adhesive Strength                                        Kgf/ cm           78

Hardeness                    ASTM    D    2240       Shore  D         88

Volume. Resistivity            ASTM    D    257         ohm-cm           ＞1016

 

Dielectric Constant        ASTM    D    150        @25℃,1 KHz       4.0

 

Dielectrec Strength         2 mm                        KV/mm             22.0                             

Moisture absorption        ASTM    D    570         @100℃/ 4 Hrs    ＜0.1

 

*TE:

l      A  and  H  must  mix  thorought  until  the  color  is  unifrom.

l      Pot-Life  is  depend  on  the  temperature  and  mixed  total  quantity.

The  more  the  total  quantity  is ,  the  shorter  it  can  last .