Datasheet
Manufactured by :
CRC Industries Europe NV
Touwslagerstraat 1 – 9240 Zele – Belgium
Tel (32) (0) 52/45.60.11 Fax (32) (0) 52/45.00.34
www.crcind.com
TECHNICAL DATA SHEET
1/2
GRAPHIT 33
Ref. : 20760
1. GENERAL DESCRIPTION
Graphite lacquer for conductive coatings. Thermoplastic binder with electrically conductive
graphite powder.
2. FEATURES
• GRAPHIT 33 contains a high level of pure and fine graphite powder. This results in a good
electrical conductivity, as well as gliding and release agent properties of the graphite
lacquer. The coating exhibits good adhesion on metal, many plastics, glass and wood.
3. APPLICATIONS
As a conductive coating for permanent and safe diverting of electrostatic discharges (ESD)
• Backs of cathode rag tubes
• Electroplating of non-conductive materials
• ESD safe packages
• Repair of graphite-coated pcb’s in keyboard switches (e.g. remote controls)
• To firm the ESD protection of packaging and conveyor tube equipment.
As sliding coating for permanent, temperature resistant, dry sliding coating.
As high-temperature release agent : conductive protective release coating for high-voltage
contacts, high-temperature release agent, e.g. for moulds used for the sintering of abrasive
agents in abrasive discs.
Optical applications : the dark black colour makes GRAPHIT 33 suitable as an absorbent
coating in for example laser applications.
4. DIRECTIONS
When relative small amounts are involved, the easiest way to apply GRAPHIT 33 is to spray
from an aerosol can. Shake can thoroughly before use. Spray, from a distance of 20-30 cm
onto the dry and degreased surface. After use, always clean button by spraying upside-down
until only gas escapes.
When larger amounts are needed, GRAPHIT 33 can be applied by spraying using
commercial spray guns. Before use, stir vigorously (best for 10 minutes with propeller
agitator). As diluent we do recommend isopropanol e.g. our product THINNER for
KONTAFLON 85. During use, shake or stir at regular intervals.
The surface resistivity can be further reduced by heating at 90°C (1 hour) or by polishing with
a cloth or swab. Polishing makes also the weak graphite layer more firm. At temperatures
above 100°C the binding agent will decompose. Nevertheless a good adhering graphite film
remains that can be used as e.g. release coating.