Graphite-containing conductive preparations of DODUCO GmbH

Manufacturer and supplier of precious-metal-free, graphite-pigmented conductive preparations


 

Similar to silver-pigmented conductive preparations, precious-metal-free, graphite-pigmented conductive preparations are also based on decades of experience in production. The close cooperation with the customer has enabled DODUCO as producer to develop a selection of precious-metal-free conductive preparations that cover a broad area of use.

 

DODUCO's range of precious-metal-free graphite-pigmented conductive preparations includes:

 

  • Graphite conductive varnishes
  • Graphite conductive pastes
  • Diluent

 

Packaging sizes of 1 kg product per unit have proven their worth for practical use. The diluents can be delivered in different amounts as well depending on your needs and upon request.

 

 

Both DODUCO's graphite conductive varnishes and graphite conductive pastes are sold under the brand name of GRAPHAROL®. Both product groups are made conductive by the addition of a special graphite pigment. Thus, the product will often have enough conductivity and offer a cost-efficient alternative for precious-metal-containing products. However, if you have any greater requirements to the conductive layer, you should use a silver-containing conductive product.

Similar to the silver conductive preparations, graphite conductive preparations adhere well to many plastics and other carrier materials. The solvents contained permit quick drying even at low temperatures and simple processing.

 

The thinly liquid graphite conductive varnishes are usually applied by spraying or with a brush. More viscose graphite conductive pastes are recommended for screen printing. Additional of a suitable diluent (information available on request) permits variation of the viscosities as required.

 

Depending on the area of application (carrier material, drying requirements), there are mostly two types distinguished:

  • Graphite preparations on acrylate resin basis and
  • Graphite preparations on acrylate-polymer basis

 

DODUCO's product range currently contains the following graphite conductive products:

 

GRAPHAROL® 3 graphite conductive varnish
Base Acrylate resin
Graphite content 35 %
Viskosität 100-200 mPas
Surface resistance < 500 mOhm/cm² at 100°C
Properties/use

Very good adhesion on many different bases,

Shielding against electrostatic charges

Varnish layer can be galvanically reinforced

 

GRAPHAROL® 3/II 3 graphite conductive varnish
Base Acrylate resin
Graphite content 25 %
Viskosität 100-200 mPas
Surface resistance < 500 mOhm/cm² at 100°C
Properties/use

Very good adhesion on many different bases,

Shielding against electrostatic charges

Varnish layer can be galvanically reinforced

 

GRAPHAROL® 3K3 graphite conductive varnish
Base Acrylate-polymer
Graphite content 42,5 %
Viskosität 1000-2000 mPas
Surface resistance < 300 mOhm/cm² at 100°C
Properties/use

Very good adhesion on PCB substrate,

ceramics, glass, copper

 

GRAPHAROL® 114 graphite conductive varnish
Base Acrylate-polymer
Graphite content 40 %
Viskosität 1500-2500 mPas
Surface resistance < 1000 mOhm/cm² at 120°C
Properties/use

Very good adhesion on substrates,

ceramics, glass, copper

 

 

DODUCO's graphite-pigmented conductive varnishes und conductive pastes are used for/in:

  • antistatic equipment of containers and tubes
  • Heating and warmth conductors

  • Production of high-ohmic printed circuits and contact bridges in PCB production

  • Printing over silver conduction tracks to increase corrosion and migration resistance

 

 

 

Contact person

 

Fabian Gall

Sales precious metal preparations
+49 7231 602 586

 

Contact

 

 

Sascha Haug

Technical customer consulting
+49 7231 602 538

 

Contact

 

 

Product pages

Silver ingots by DODUCO

Certification

 

 

 

 

DODUCO Contacts and Refining GmbH is an accredited Silver LBMA Good Delivery List Refiner. This logo is a trade mark of The London Bullion Market Association.

 

The gold recovered by DODUCO Contacts and Refining GmbH and used in new products is certified as conflict free by the Responsible Minerals Initiative (RMI).

 

Wiki of electrical contacts

 

 

electrical-contacts-wiki.com