供应wk-921A/H电子零组件灌封胶

价格：面议起

恒荣电子有限公司

联系人：李生

电话：13926893146

地址：广东省东莞市长安镇锦厦*五工业区

产品规格：5KG/桶

产品数量：10000 个

包装说明：5KG/桶

关 键 词：电子零组件灌封胶

行 业：化工 胶粘剂 灌封胶 

发布时间：2017-11-09

WK-921A/92IH

(For  P . C  BOARD  COATENG)

 

PROPERTIES  OF  UNCURED  MATERIAL:     

                                              WK-921A                          WK-921H

1.Appearance:                    Black  dense  liquid             Brow  Liquid                                                

2.Viscosit(@25℃)         250,000±50,000cps        280,000±5,000cps                                                                             

3.Density                                 1.6                                      1.6                                              

4.Mix Ratio                       100:50

5.Life ; (mixture) 100 Gm , @25℃     30min  

6.Gel Time                   @25℃/4Hors

7.Curing Condition          @25℃/12Hors

                  

PROPERTIES  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

 

NOTE:

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 .