Gold plating gives a tarnish-free, noble surface with stable, low contact resistance for the life of the part — the standard for connectors, contacts, bonding, and high-reliability electronics. Purity and hardness are selected independently: soft pure gold for wire bonding, hardened gold for connector wear. Gleco plates gold to MIL-DTL-45204 and ASTM B488 at our AS9100D and ISO 9001:2015 certified, ITAR Registered Texas plants.
| Governing specs | MIL-DTL-45204; ASTM B488 |
|---|---|
| Purity types | Type I 99.7% Au min; Type II 99.0% (hardened, Co/Ni); Type III 99.9% (wire-bond grade) |
| Hardness grades (Knoop) | A ≤90; B 91–129; C 130–200; D 201+ |
| Thickness classes | Class 00 (20 µin) through Class 6 (1,500 µin) |
| Underplate | Nickel underplate (diffusion barrier) standard over copper alloys |
| Typical uses | Connector contacts, PCB edge fingers, wire-bond surfaces, RF/microwave, medical and space electronics |
Send the print and we’ll tell you. Quotes typically back within one business day, from either plant.
Precision metal finishing since 1979. Plating, anodizing, coatings and passivation from two Texas plants.
Gleco Rowlett
2220 Grisham Drive
Rowlett, TX 75088
972-475-4300
Gleco McAllen
3800 W. Ursula Ave
McAllen, TX 78503
956-800-4069
