Applications

Protective coating on silver tracks and pads in membrane switches, keyboards,Conductive jumpers in membrane switches or Protection against electrostatic discharge (ESD)

ELECTRODAG 965SS is designed for use in the production of low voltage circuitry on polyester to protect silver pads and tracks from chemical attack and silver migration. It consists of very finely divided graphite particles dispersed in a thermoplastic resin.

TYPICAL PROPERTIES OF UNCURED MATERIAL

Solids Content by Weight, % 38

Viscosity @ 20 °C, mPa?s (cP):

Speed 20 rpm 32,500

Density, kg/cm3 1,100

Theoretical coverage, m2/kg:

 Wet product @ 10 μm dry coating thickness 30

Shelf Life @ 5 to 30°C, year 1

Flash Point , oC 110

TYPICAL SCREEN PRINTING PROCESS

Printing Equipment Type

Manual;Semi-automatic;Reel-to-reel

Recommended Screen Type

Monofilament polyester screen , threads/cm 61 to 90

Recommended Squeegee

Polyurethane , durometer 70 to 75

Applied Dry Coating Thickness

Applied Dry Coating Thickness, μm 8 to 10

Emulsion Thickness

Emulsion Thickness , μm 20 to 40

TYPICAL DRYING PERFORMANCE

Recommended Drying Cycle

Conventional Air Circulated Ovens

30 minutes @ 90 °C

15 minutes @ 120 °C

ELECTRODAG 965SS can be dried immediately after printing at

temperatures between oC. The higher the temperature, the lower

the sheet resistance and the better the mechanical properties.

For high speed production, jet drying, infra red drying and drying in

high speed reel-to-reel equipment can be used successfully.

TYPICAL PROPERTIES OF CURED MATERIAL

Dry Coating on untreated Polyester film, dried 15 min @ 120oC

Physical Properties

Adhesion 5B

Electrical Properties

Sheet Resistivity , ohms/sq:

@ 1 mil dry coating thickness <60

GENERAL INFORMATION

For safe handling information on this product, consult the

Material Safety Data Sheet, (MSDS).

DIRECTIONS FOR USE

1. Surface Preparation

● Surface to be coated must be dry and free on contaminants such as oil or chemical residues.

2. Mixing/Dilution

● ELECTRODAG 965SS is supplied ready for use and does not require dilution.

● Avoid rapid stirring, as this causes air entrapment

● Should thinning become necessary, use Electrodag Diluent 1 or carbitol acetate (1 to 3% by weight).

3. Cleanup

● The equipment can be cleaned with MEK, MIBK, Acetone  or similar solvents.