Available Surface Finishes
· Deburr · Mechanical Polishing · Chemical Polishing · Electropolis | · Sandblasting
· Knurling · Brushing · Tumbling
| · Shot Peening · Surface Grindin |
Available Surface Treatments
We offer a wide variety of surface finishing to meet customer performance or cosmetic needs. Metal finishing services including plating of zinc, nickel, chromium, gold, silver, various type of anodizing for aluminum, conversion coating such as passivating and phosphating. We also provide powder coating and wet painting services.
Nadcap Accredited Processe | Specification | Process Classification |
| Anodizing | MIL-A-8625 | Type I - Class 1 & Class 2 |
Type II - Class 1 & Class 2 |
Type III - Class 1 & Class 2 |
| Electroless Nickel | AMS 2404 / ASTM B 733 / AMS-C-26074 / MIL-C-26074 | Mid phosphorous E |
| High phosphorous EN |
EN Telfon |
Electropolish | ASTM B 91 |
|
| Chrome Plating | AMS 2406 / AMS 2460 / AMS-QQ-C-320 / QQ-C-320 | Nickel Chrome Â
|
Hard Chrome |
| Silver Plating | FED-QQ-S-365 / ASTM - B 700 | Matt Silver Plating |
| Semi- Bright Silver Plating |
| Bright Silver Plating |
| Passivation | AMS 2700 / AMS - QQ - P – 3 | Type II & VII |
| ASTM A 967 | NITRIC 1 & NITRIC 3 |
Cadmium Plating | AMS-QQ-P-416 | Type I |
| Type II |
| Type III |
Chromate Conversion Coating | MIL-C-5541 / MIL-DTL-81706 / ASTM B 449 | Clear |
Yello |
Surtec 650 |
Coating & Painting
Powder coating is a coating that is applied as a free-flowing, dry powder. The coating is mainly applied electrostatically and thermal curing. The powder may be a thermoplastic or a thermoset polymer. It is usually used to create a hard finish that is tougher than conventional paint. Powder coating is mainly used for coating of metals.
| Process | Process Classification |
Powder Coating | Epoxy Powder Coating |
| Polyester Powder Coating |
Epoxy Polyester Hybrid Powder Coating |
Polyester TGIC Powder Coating |
| Thermosetting Powder Coating |
| Spray Painting | High Build Tar Free Coating |
High Solid Aliphatic/ Aromatic Polyester Polyurethane Coating |
Polyurethane Coating |
| ESD Painting |
Nano Coating |
Dry / Solid Film Lubricants |
Ultrasonic Cleaning
Ultrasonic cleaning is a cleaning method that uses ultrasound, usually from 20–400 kHz, with an appropriate cleaning solvent to clean delicate items. The ultrasound can be used with just water, but the use of a solvent appropriate for the item to be cleaned enhances the effect. Ultrasonic cleaning can be used for a wide range of workpiece shapes, sizes and materials, and may not require the part to be disassembled prior to cleaning. Most hard, non-absorbent materials not chemically attacked by the cleaning fluid are suitable for ultrasonic cleaning.
GD Tech cleans new (OEM parts) and components and assemblies for the semiconductor, optical, medical, vacuum and related industries. In medical applications, sterilization normally follows ultrasonic cleaning as a separate step to remove spores and viruses on the objects surface after cleaning.
| Process | Tank Size (mm) |
Ultrasonic Cleaning | 740 (L) x 480 (W) x 1040 (H) |
Chemical Cleaning
Chemical Cleaning of materials is vital part of many high tech operations such as disk drive, semiconductor, aerospace and medical industries.
The purpose of any cleaning process is to remove contaminants from a part that needs to be rendered clean. Contaminant removal, through chemical means, involves a chemical reaction that modifies the chemical composition of contaminants. Contaminant depositions could be in multi-layers which may be impossible to obtain a chemical solution to remove all contaminants in one step process.