Our Affiliated Company Provides Surface Treatment

Unison Tek has specialized in manufacturing CNC precision metal parts for our customers since 1989 for more than 36 years.

Our clients are satisfied with our products our engineering team, and our professional service from our sales team.

Not only Unison Tek provides precision metal parts, but also we provide professional surface treatment, because we help you to find the best factory which is good at surface treatment with high quality.

We can save your time and budget. You can count on Unison Tek and believe in Unison Tek, we will make you more successful in your business and save your time.

The following are the surface treatments provided by our affiliated company, we just name a few here for reference:  

Zinc Plating

Characteristic

• ♦Stable corrosion resistance.
• ♦The Zinc plating surface is bright and delicate.
• ♦Various types of passivation, black, color abd bright / clear.
• ♦The highest corrosion resistance can reach 200 hours without Zinc rust, 600 hours without red rust.
• ♦Conforming all automotive surface treatment standards, e.g.

Zinc - Nickel Alloy Plating

Surface treament process with high level corrosion protection and high-temperature tolerance.

Characteristic

• ♦Nickel contents 12 ~ 16%.
• ♦Higg-temperature tolerance(100 ~ 200℃)
• ♦Excellent corrosion resistance (More than 1500 hours without red rust)
• ♦Various types of passivation, black, color and bright / clear.
• ♦The highest corrosion resistance can reach 240 hours without zinc rust, 1500 hours without red rust.
• ♦Conforming all automotive surface treatment standards, e.g.

• SAE	AMS 2417
  ASTM	ASTM B841-99
  DIN	DIN 50962
  DIN EN ISO	ISO 4042
  HONDA	D02003-05
  VOLVO	STD 5732, 104
  GM	GMW 4700
  GM	GMW 16730
  BMW	GS 90010
  BENZ	DBL 8451
  Chrysker	PS-8955

   Zinc-Iron Alloy Plating

Zinc Iron Alloy Provides High Corrosion Resistance Sureface

Characteristic

• ♦Iron contents 0.3 ~ 0.5%
• ♦Silver-free of black passivation.
• ♦Corrosion resistance better than Zinc plating.
• ♦Various types of passivation, black, color, and bright / clear.
• ♦The highest corrosion resistance can reach 200 hours withour zinc rust, 600 hours without red rust.
• ♦Conforming all automotive surface treatment standard, e.g.  

• DIN	DIN 50962
  DIN EN ISO	ISO 4042
  VOLVO	STD 5732, 104
  GM	GMW 4700
  BMW	GS 90010
  BENZ	DBL 8451
  CHRYSLER	PS-8955

Electrodeposition Coating

Excellent Coverage Ability and Adhesion

Characteristic

• ♦Excellent corrosion resistance
• ♦Without residue paint dripping appearance.
• ♦Uniform appearance.
• ♦Excellent coverage ability and adhesion.
• ♦Coating surface is smooth and shiny
• ♦Lead-free paint
• ♦The highest corrosion resistance can reach 840 hours.
• ♦Conforming all automotive surface treatment standards, e.g.

• TOYOTA	TSH 2354G
  YAMAHA	YGK-8-501 F4
  FORD	WSK-M2P153-A1 / A6
  MITSUBISHI	EX-X71221
  NISSAN	M5083

Zinc-Tin Alloy Plating

Characteristic

• ♦Sn contents 65 ~ 85%
• ♦Excellent corrosion resistance.
• ♦Good soldering performance, place a few days in the atmosphere, it does not deteriorate adhesion.
• ♦Softer surface film was easy to secondary processing.
• ♦Casting is also easy plating.  

Main Application

• ♦Can be used to replace the electronic components of the tin or silver.
• ♦Due to the appearance of Zinc-Tin alloy plating was similar with silver and tin, can be applied to furniture or lighting.
• ♦High corrosion resistance requirements of aircraft, ships, marine machinery, auto parts and electrical parts for military ... and so on.
• ♦Requires corrosion resistance and solder parts.
• ♦Prevent scratching of precision stampings plating.
• ♦Since the low melting point, the service temperature has to less than 190℃.

Hard Chrome Plating

Characteristic

• ♦Plating layer with high hardness and wear resistance.
• ♦Provide a bright and artistic appearance.
• ♦Provide a higher mechanical strenth and heat resistance.
• ♦Coating thickness uniformity, can be controlled in the range of 0 ~100㎛.
• ♦Adhesion of the plating surface and the substrate was excellent.
• ♦Conforming all automotive surface treatment standards, e.g.  

Main Application

• ♦Hard chrome multi-application in high-precision mechanical parts, such as piston rods, hydraulic heart shot(charge), a machine, a mirror wheel, embossing rollers, printing rollers and dryer.  
• ♦In addition to hard chromium plating technique widely used in new equipment maintance, due to hard chromium plating at the time must be thickened after a long grinding after plating, and electroplating in the process will be a protective layer formed on the surface of plants, the maximum thickness of thousand microns. Enough to wear medieval mechanical repair, after grinding like new, even more durable than new.

Nickel Chrome Plating

Characteristic

• ♦Excellent corrosion resistance to acid.
• ♦Artistic silver appearance.
• ♦Provide a higher quality and longer tool life.
• ♦Conforming all automotive surface treatment standards, e.g.  

• JIS	JIS H8617
  HONDA	HES D3010-05
  YAMAHA	YGK-7-801
  SAE	AMS QQ-N-290A GRADE G
  DUCATI	ST-STR-039

Unison Tek cointinued to grow a scalable company in Taiwan, and our goal is to serve all the people who need oem customized machined metal parts.

Please get a quote from Harry Yen hyen@unisontek.com.tw or visit our Facility, Stamping Parts,  Technical Data for your reference and Quality Inspection. With much experienced engineering team, we will reply to you with feedback in two working days.

All of us are looking forward to your news and invite you to visit our factory in Taiwan. Welcome to send any inquiry to us! we'll reply to you in 24 hours, and our engineering team will have useful feedback for you.