Yes, regularly. This is a specialty for INTA Technologies Corporation and we have been using the same process for many years.
Platinum plating is very popular for many reasons. Platinum does not oxidize or tarnish. Platinum plating is used for catalytic converters (automotive), surgical and medical equipment, and low voltage, low current applications. A thin deposit of platinum protects the substrate very well and has made platinum very popular for a coating selection. Platinum plating is used for anodes and for protecting substrates from harsh or chemical environments.
No, electrolytic only.
Platinum plating is one of the more expensive coating options. Use platinum for high-end applications and corrosive environments. Platinum is more expensive than gold but less than rhodium. Each project is unique. For an exact price quote please contact INTA Technologies.
Range from .00002 to .0002 contact our sales office for design assistance sales@intatech.com or 408-748-9955 x113
Standard lead time is five (5) days. Same day or expedite service available in many cases for an additional charge.
The two coatings are used for different applications. Platinum plating is especially important in the electrode manufacturing segment and gold would not be an adequate alternative. Platinum is more costly than gold, but often a thin coating of platinum will suffice making up for the price difference between platinum and gold. In most cases platinum plating is good for high temperature applications but is more costly than gold plating.
In general, our maximum size for platinum plating is 12 length and 6 OD although exceptions occur.
Partial list:
Copper
Steel
Copper tungsten
Graphite
Aluminum
Ceramic
Plastic
Molybdenum
Titanium
Zirconia
Kovar
Quartz
MACOR
Inconel
Alloys
In many cases platinum plating is necessary and there is not a less expensive alternative. In other cases, however, alternatives exist. For high temperature applications, platinum and rhodium are very popular. For further analysis send your drawings and requirements to:
Blake Kneedler, Manufacturing Engineer
408-748-9955 x113
408-727-3027 fax
Thermal conductivity: 71 (W/mK)
Density: 21.4 (gm/cc)
CTE: 8.8 (ppm/deg C)
Many folks consider platinum a noble metal along with these other metals:
Copper
Ruthenium
Rhodium
Silver
Rhenium
Osmium
Iridium
Gold
Mercury
However, to certain scientists (including physicists), platinum is not considered noble because not all the d-bands in the electronic structure are filled. In the view of most physicists the only noble metals are copper, silver and gold. Try this experiment: Prepare a clean platinum plated surface in high vacuum and then compare the results using the same process with a gold plated surface
See the previous answer.
INTA recommends building an undercoat followed by a platinum topcoat much thinner than .001. INTA does not have the ability to guarantee platinum coatings .001-.01 but can do research & development work for a fixed cost or by the hour.
Yes, platinum plating is bio-compatible in most cases but certain precautions must be followed to the letter. For further details contact Blake Kneedler, Manufacturing Engineer (blake@intatech.com) or Dr. Francis Honey (fhoney@intatech.com).
See the last part of the previous answer.
Yes, advice is given by the phone or email. Drawings are helpful.
Try metalfinishing.com (Metal Finishing Magazine) or finishing.com.
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Last revised: 19 JUL 2010