Electrodag 109B  

Sole Distributor

RAYMOND & CO.

Fast Drying

Conductive

Graphite Coating

Description

:

Electrodag 109B is one of a series of Electrodag coatings designed to provide controlled electrical properties.  Electrodag 109B is a dispersion of finely divided graphite in a thermoplastic resin that rapidly air dries to form a flexible conductive coating.  It is designed to be applied by typical spray or printing techniques.

Electrodag 109B is fully miscible with Electrodag 415 (conductive silver coating) to produce a range of resistances between 0.1 ohm/square to 40 ohms/square.

Typical Applications

:

*  Flexible conductive coating for plastics

*  EMI shielding

*  Flexographic and roto gravure printed circuits

Typical Properties

:

Pigment

:

Graphite

(as supplied)

Binder

:

PVC resin

Diluent

:

MIBK, MEK or lacquer thinner

Color

:

Black

Consistency

:

Liquid

Density

:

8.6 lbs / gal (1.0 kg / l)

Solids content

:

40%

Flash point

:

59ºF (15ºC)

Viscosity

:

1500 cps Brookfield RVT @20 rmp

Shelf life

:

six months from date of shipment under original seal

Coverage

:

350 sq ft / gal @1 mil

VOC

:

619 g / l

Typical Properties

:

Color

:

Black

(after drying)

Sheet resistance

:

<40 ohms / sq @ 1 mil dry film

Service temp

:

Maximum 220 ºF(104ºC)

Pencil hardness

:

HB

  Coating resistance may be varied by controlling the film thickness.

Method of Use

:

Surface Preparation

Surfaces to be coated must be clean, dry and free of dust.

Mixing and Dilution

For spray application, using a mechanical stirrer or paint sharker, mix Electrodag 109B thoroughly until it is of uniform consistency. Check to see that no sediment remains in the bottom of the container.  Pour into a suitable container for dilution (e.g. pressure pot etc.).

Method of Use

(Continued)

:

Electrodag 109B should initially be diluted 1:1 by volume with MIBK, MEK or lacquer thinner.  Final production dilution ratios may vary slightly according to individual needs. To dilute, add solvent to Electrodag 109B and continue stirring until mixture is of uniform color.

Spray Application

For small production work and prototypes, a suction cup gun may be used, providing Electrodag 109B is thoroughly mixed prior to spray application.  For intermediate production runs or many small parts, propeller-type attachments should be used on the suction gun to ensure coating uniformity.  Full production is best handled with propeller-agitated pressure pot systems, as this provides the best in application efficiency.

Notes:  Handle Electrodag 109B as you would a quality automotive lacquer.  AVOID DRY SPRAY, as this will cause poor adhesion.

To reduce overspray, use the minimum atomization pressure required for adequate coverage.

Print Application

Product is supplied ready for use for printing applications.  If dilution is necessary, use MEK or MIBK.

Drying

Air dry coated parts approximately ten minutes, depending on humidity, before carrying out resistance checks.  Drying time for production operations can be accelerated by passing the coated parts through infrared heat or through batch or conveyor ovens at some increase in resistance.     

Precaution

:

FLAMMABLE.  Harmful if swallowed, inhaled or absorbed through skin.  May cause eye irritation.  Wash thoroughly after handling.  Keep away from heat, sparks and open flame.  Keep container tightly closed when not in use.  Use with adequate ventilation.  Avoid breathing vapor.  (See Acheson Material Safety Data Sheet for proper first aid instructions.)

Note

:

The data contained on this sheet represents typical properties and is not being used as a basis for preparation of specifications.  Contact your nearest Acheson unit before writing specifications based on this product.