Hard Gold Plating Services

High-Reliability Gold Plating for Electrical and Industrial Applications

Accurate Edge offers hard gold plating services that meet the most demanding industry standards for corrosion resistance, solderability, and wear performance. Our plating process is ideal for electrical switch contacts, connector pins, barrels, and other components requiring intermittent electrical contact and long-term durability.

We specialize in Type I, Type II, and Type III hard gold plating, compliant with specifications such as MIL-DTL-45204, ASTM B488, AMS 2422, and AMS 2425.

Key Features

• Compliant with MIL-G-45204, MIL-DTL-45204, ASTM B488, AMS 2422, AMS 2425
• Type I: 99.7% gold minimum – general-purpose, high-reliability electrical contacts
• Type II: 99.0% gold minimum – wear-resistant, not suitable for high temperatures
• Type III: 99.9% gold minimum – ideal for semiconductors and high-temperature applications
• Coating thickness: 50–100 microinches (0.00005–0.0001 inch)
• Hardness grades: A (≤90 knoop), B (91–129), C (130–200), D (≥201)

Benefits

• Excellent Corrosion Resistance: Gold’s inert nature protects components in harsh environments.
• Superior Solderability: High-purity coatings ensure reliable solder joints.
• Wear Resistance: When alloyed with cobalt, gold plating offers enhanced durability.
• Electrical Reliability: Maintains conductivity and contact integrity over time.
• Custom Finishing: Thickness and hardness tailored to application requirements.

Underplate Recommendations

To prevent diffusion of base metal ions into the gold layer, we recommend:

• Electroless Nickel: Ideal for rigid parts where a bright finish is preferred.
• Sulfamate Nickel: Recommended for parts subject to flexing or deformation due to its higher ductility.

These underplates are essential when plating over copper-rich substrates like brass, bronze, or beryllium copper.

Why Choose Accurate Edge?

• Specification-Driven Process: Fully compliant with MIL-DTL-45204 Type III and other global standards.
• Material Expertise: Proven experience with a wide range of base metals and alloys.
• Precision Control: Tight control over purity, thickness, and hardness grades.
• Trusted by Industry: A reliable provider of gold plating in UAE for critical electrical and industrial applications.
• End-to-End Support: From consultation to final inspection, we ensure quality and consistency.

Ready to Enhance Your Components with Hard Gold Plating?

Partner with Accurate Edge for specification-grade hard gold plating in the UAE.
Let’s discuss your application and deliver a coating solution that meets your exact needs.

Frequently Asked Questions

Q1. What is hard gold plating?

Hard gold plating is an electroplating process where gold is alloyed with elements like cobalt to improve wear resistance, commonly used in electrical and electronic components.

Q2. What is Type III hard gold plating?

Type III hard gold plating contains 99.9% pure gold and is used for high-temperature and high-reliability applications such as semiconductors and thermo-compression bonding.

Q3. What is the difference between Type I and Type II gold plating?

Type I offers the highest purity (99.7%) and is ideal for high-reliability electrical contacts. Type II is slightly less pure (99.0%) but more wear-resistant, suitable for general-purpose applications.

Q4. Do you offer gold plating for custom components?

Yes, we provide tailored hard gold plating services based on your design, material, and performance requirements.