660-1,2 Rigid Mica Material for Heating Equipment


    These products are made from mica which bonded with silicon resin binder to form digid sheet under heat and press ure, they have unique temperature resistance, excellent dielectric properties and mechanical properties, they are used for various insulation for domestric appliances e.g, toaster, fan for cold and hot wind, electrithermal pot and hair-drier ect.
     The products approved by "UL" in the USA, No.:E115763(S).

Type Compositions Application Heat resistance
660-1 Large flake mica paper
silicon resin binder
Use for electric heating equipment e.g. heater,hair-drier,iron 500¡æ
660-1A Use for electrial heating equipment for cooking e.g. toaster,microwave oven
660-2 Large flake phlogopite mica paper
silicon resin binder
Use for high temperature electric heating equipment 700¡æ
660-2A Use for high temperature electric heating equipment for cooking

    The mica sheet shall be of uniform hardness, free from delamination, blister and foreign matter.
     The size of sheet shall be in accordance with the standrad value in Table, or subject to agreement between supplier and purchaser. The tolerance for a thickness which lies mid way between the listed thickness equals that of thd thicker one.

Thickness  (mm) Length and width(mm)
Nominal thickness Tolerances Nominal size Tolerance (trimed)
%
Specimen Individual
0.15 +/-0.03 +/-0.04 600x1000
or
1000x1200
+/-5
0.20 +/-0.05
0.30
0.40 +/-0.06
0.50 +/-0.04 +/-0.07
0.60
0.70 +/-0.05 +/-0.08
0.80
1.00 +/-0.06 +/-0.10
>1.00      +/-10%

    Properties of the mica plate are shown in Table. (Delamination for mica sheet of thickness more than 1mm isn't specified.)
No. Item Unit Normal value
660-1A 660-1 660-2 660-2A
1 Adhesive content % <10 <12 <10
2 Density g/cm3 >2.0
3 Delamination % 0 <3 0
4 Flexural strength
  0.3mm--<0.5mm
  0.5mm--<0.8mm
     >=0.8mm
MPa
>120
>140

>98
>98

>80
>80

>100
>100
5 Dielestric strength MV/m >7
6 Water absorption % <3           <3
7 Smoking test S min. 30 min.

    Storage time duration for the sheet is six months dating from the dates of delivery.

Address:26# Jianshe Rd., Jiaojiang, Taizhou, Zhejiang, China 318000
Tel:0086-576-88519521 88519943          Fax:0086-576-88519869
E-mial:dimc@mail.tzptt.zj.cn