Surtec 650

SurTec 650 TCP is a Trivalent chromate, the coating is clear to colourless and is depending upon application conditions is used for corrosion resistance or low electrical contact resistance. It is also specified as a RoHS compliant pre-treatment before painting.

When specifying Surtec 650, wherever possible we recommend referring to published standards, providing at least the following information;

• Specification reference
• The grade and temper condition of the material
• Significant surfaces
• Type/grade of conversion coating required
• Any areas that cannot be used for jigging
• Any special inspection and packing requirements

If parts are to be painted after processing there are restrictions on the time delay between conversion coating and painting.

SurTec 650 TCP is Hexavalent chromium free.

We chromate to the standards shown below. We also hold a large library of customer-specific, superseded and legacy specifications so contact us if you need any help.

• AMS 03-18 (Def Stan 03-18)
• Mil-DTL-5541 (MIL-C-5541)

For more information download our Chromating info sheet or contact us for a quote.