Surface Treatment

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

AnodizingMIL-A-8625Type 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 PlatingAMS 2406 / AMS 2460 / AMS-QQ-C-320 / QQ-C-320Nickel Chrome  

Hard Chrome

Silver PlatingFED-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-416Type 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.

ProcessProcess Classification

Powder Coating

Epoxy Powder Coating
Polyester Powder Coating

Epoxy Polyester Hybrid Powder Coating

Polyester TGIC Powder Coating

Thermosetting Powder Coating
Spray PaintingHigh 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. 


Surface Treatment
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GD Tech (Dongguan) Co., Ltd
Conrad Hi-Tech Park Blk B6, Shang Sha Section of Zhen An Road, Chang An Town, Dongguan City, Guangdong province, China 523870.
+86-769-88611555
GD Precision (Shanghai) Co., Ltd
Unit 92, Liuzao Luji Rd, Chuan Sha New Town, Pudong New Area, Shanghai, China 201322.
+86-21-58591999
GD Tech Pte., Ltd
Blk 4008, Ang Mo Kio Ave 10, #02-12, Tech Place 1, Singapore 569625.
+65-69095155

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