Product Info

Spot Plating is a selective gold plating technique that helps manufacturers reduce material costs while maintaining performance. This method is highly suitable for the electronics, automotive, and communication industries in Thailand and beyond.


1. What is Spot Plating?
Spot Plating refers to the precise application of precious metals — like gold — to specific functional areas of components. This method avoids coating unnecessary surfaces, making it cost-effective while still ensuring electrical performance and corrosion resistance where needed.

The accuracy in thickness and placement makes it ideal for industries where cost-efficiency and precision are equally critical.


2. Why It’s Better Than Full-Surface Plating
Full-surface gold plating can be wasteful and expensive. In contrast, Spot Plating uses gold only where it's technically required, typically on contact points.

Key benefits include:

- Reduced gold usage: Minimize waste by plating only targeted zones
- Lower costs: Less precious metal, lower production expenses
- High accuracy: Controlled plating position and thickness
- Production scalability: Integrates well with high-speed automation


3. Applications in Major Industries
Spot Plating has become standard practice in industries where cost and precision matter:

- Electronics: For terminal pins, connectors, and contact pads
- Automotive: For electronic sensors and control systems
- Communications: For compact, high-precision signal interfaces

These sectors benefit from cost savings without compromising quality or performance.


4. Made in Thailand With Strict Quality Control
Bangkok Sanyo Spring Co., Ltd. conducts all Spot Plating processes in Thailand with full in-house quality control — from surface prep to final inspection — ensuring reliable and defect-free results. Local production also helps reduce shipping time and logistics costs.


■ Final Tip: Who Should Consider Spot Plating?
If your factory is searching for a way to cut gold costs while maintaining reliability, Spot Plating from Bangkok Sanyo Spring Co., Ltd. is a proven solution. Backed by years of plating expertise, their process supports both small-lot and high-volume production with international-grade precision.


Contact us now or download the full brochure for specifications and service details.


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