Range of Finishes and Specifications

The following table details our full range of finishes and specifications:

PROCESS	TYPE	METHOD	BASE MATERIAL	SPECIFICATION
Palladium	Pure. Palladium/nickel	Selective, barrel and rack	Copper Alloys, Steel, Aluminium, Die Castings	Customer Specification
Rhodium	Pure	Selective, barrel and rack	Copper Alloys, Steel, Aluminium, Die Castings	DTD 931 (obsolete) ASTM B634-88
Gold	Hard. Pure. Thallium Free. Immersion Gold	Reel to Reel (all over, selective plating and spot plating), barrel and rack. Selective plating on loose parts.	Steel, Copper Alloys Zinc Die Castings Aluminium	DEF 03-17, MIL-DTL-45204D, ASTM B488, AMS 2422E, BS4292: PART 1 & PART 2 – REPLACED BY BS EN ISO 27874:2008
Silver	Semi-bright. Bright. Dull. Antimonial	Reel to Reel (all over, selective plating and spot plating), barrel and rack.	Steel, Copper Alloys Zinc Die Castings Aluminium	BS 2816 REPLACED BY BS EN ISO 4521:2008, DEF03-9, BS 4290, QQ-S-365 REPLACED BY ASTM B700
Copper	Cyanide. Acid. Pyrophosphate	Reel to Reel (selective), barrel and rack	Steel, Aluminium, Zinc Die Castings, Copper Alloys	AMS-2418, BS 2870 , BS 2874
Nickel	Dull. Bright. Semi-bright. Ductile	Reel to Reel (all over, selective plating and spot) barrel and rack	Steel, Copper Alloys, Aluminium, Zinc Die Castings	QQ-N-290, DEF 03-27, BS4758
Electroless Nickel	Low, medium, high phosphorus. Non-magnetic	Selective, rack and barrel	Steel, Copper Alloys, Aluminium, Die Castings	DEF 03-5, AMS 2404, MIL-C-26074, AMS 2405, AMS 2433, ASTM B656, ASTM B733
Tin	Bright and dull	Reel to Reel (all over, selective) barrel and rack	Steel, Copper Alloys, Aluminium	DEF 03-8, BS 1872, MIL-T-10727 REPLACED BY ASTM B545
Tin/Lead	60/40. 90/10	Reel to Reel (all over, selective), barrel and rack	Steel, Copper Alloys, Aluminium	BS6137, DEF03-15, AMS-P- 81728
White Bronze	Semi-bright	Barrel and rack	Steel, Copper Alloys	Customer Specification
Zinc Cobalt	Passivated. Clear-Colour. Black and Olive Drab	Rack	Steel, Copper Alloys, Aluminium	Customer Specification
Aluminium Conversion Coating	Alocrom 1200 Alocrom 1000 Alocrom 100 Iridite NCP	Rack	Suitable Aluminium	DEF 03-18, MIL-C-5541
OTHER PROCESSES	Heat treatment: Adhesion enhancement, hardening, stress relieving, de-embrittlement, in nitrogen