Electrically conductive paint

 

The use of plastic housings and plastic components is widely spread in all kinds of industries. To fullfil the requirements concerning the limits of immunity and emission to interference, those housings and components needs to get fully or selectively electrically conductive coated.  
Normal processes to achieve this are galvanic surface treatment, vacuum disposit or spray coating with electrically conductive paint (wet paint).

Very effective is the use of electrically conductive paint.
Those paints are solvent based or water based paints that contains electrically conductive particles.

The industry offers electrically conductive paints starting from nickel or aluminium paint in aerosol cans up to superior paints filled with pure silver particles.  

Our offer is focused on superior highly conductive paints using following fillers (particles):  

  • passivated copper particles
  • nickel particles
  • silver plated copper particles
  • pure silver particles  

Some advantages of using electrically conductive paints are:  

  • very best electrical conductivity
  • easy to apply
  • cost-effective 
            Coated enclosure

Unfortunately not every plastic is the same. With the variety of plastics and plastic blends it is necessary to test the adhesion of the electrically conductive paint on the substrate.
As an inimitable service to our customers we offer them to send the substrate that needs to get painted to us. In a laboratory those substrates will be applied with the suggested conductive paint. Following that process the substrate will be tested to the achievements of adhesion, surface resistivity and dry film thickness of the paint. Those measurements will then be supplied back to the customer together with the coated substrate.

MTC offers a big variety of electrically conductive paints, however following eight products developed to a sort of standard:  

 

Article number CP-5149-XX CP-5150-XX CP-5151-XX CP-5152-XX
Base material solvent solvent solvent solvent
Particles silver silver and silver plated copper silver plated copper

silver plated copper and passivated copper
Solids (% per weight +/-2) 48 36 29 19
Density (+/-0,03) 1,36 1,2 1,11 1,00
Resistivity at XX µ dry film thickness < 0,015 Ohm/cm
12.5 µ		 < 0,015 Ohm/cm
12.5 µ		 < 0,015 Ohm/cm
25 µ		 < 0,015 Ohm/cm
25 µ
Adhesion at XX µ dry film thickness at XX g weight 500 cycles
12,5 µ / 55 g		 500 cycles
12,5 µ / 55 g		 500 cycles
12,5 µ / 55 g		 500 cycles
12,5 µ / 55 g
Coverage (m² / litre)
at 12,5 µ dry film thickness
at 25 µ dry film thickness

19,3
9,5

 15,2
7,6		 13,4
6,8		 11,8
5,9
Coverage (m² / kg)
at 12,5 µ dry film thickness
at 25 µ dry film thickness		 14,2
7,0		 12,7
6,3		 12,1
6,1		 11,8
5,9
delivery form: container with XX litre 5 / 20 5/20 5/20 5/20

 

Article number CP-5155-XX CP-5156-XX CP-5198-XX
Base material water water water
Particles silver plated copper silver and silver plated copper silver
Solids (% per weight +/-2) 47 29 50
Density (+/-0,03) 1,41 1,02 1,40
Resistivity at XX µ dry film thickness < 0,02 Ohm/cm
25 µ		 < 0,05 Ohm/cm
25 µ		 < 0,025 Ohm/cm
25 µ
Adhesion at XX µ
dry film thickness at XX g weight		 500 cycles
12,5 µ / 55 g		 500 cycles
25 µ / 55 g		 500 cycles
25 µ / 55 g
Coverage (m² / litre)
at 12,5 µ dry film thickness
at 25 µ dry film thickness		 18,0
9,0		 20,2
10,2		 23,8
12,0
Coverage (m² / kg)
at 12,5 µ dry film thickness
at 25 µ dry film thickness		 12,8
6,4		 19,8
10,0		 17,0
8,6
Delivery form: container with XX litre 5 / 20 5/20 5/20