- +971 48858090
- info@accurateedgeuae.com
- Dubai Investment Park 1
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.
FAQ about CNC Machining Services
Hard gold is specifically engineered for high-wear applications where electrical conductivity and physical durability must coexist. Unlike pure soft gold, hard gold is alloyed with small amounts of cobalt or nickel, which increases the Knoop hardness significantly. This makes it ideal for components like PCB edge connectors, battery contacts, and rotary switches that undergo frequent mating cycles. At Accurate Edge, we ensure our hard gold deposits provide the necessary lubricity to prevent galling while maintaining the exceptional oxidation resistance required for long-term signal integrity.
The decision depends entirely on the application of the component. Soft gold, which is 99.9% pure, is the better choice for lead bonding, high-temperature applications, and medical devices due to its extreme purity and biocompatibility. However, because it is soft, it wears away quickly under friction. Hard gold is the superior option for any part subjected to mechanical wear or repeated contact. We typically recommend hard gold for telecommunications and aerospace hardware where the gold layer must withstand environmental stress without sacrificing the low contact resistance essential for high-frequency signals.
Our plating processes are designed to meet the most rigorous global specifications, including MIL-DTL-45204 and ASTM B488. These standards dictate the exact purity levels and thickness grades required for mission-critical components. We provide various thickness classes ranging from flash deposits for basic protection to heavy deposits for extreme durability. By adhering to these standards, we guarantee that our gold-plated components meet the specific porosity and adhesion requirements necessary for the UAE’s demanding industrial and defense sectors.
