HCH-PCB applys Coating to PCB assembly according to customer requests.
The coating process is usually very important to protect the circuit board from moisture and contaminants (which may cause leakage).
These products are usually used in wet applications such as bathrooms, kitchens, outdoor applications, etc.
We have professional team and Advanced machine for coating.
The coating is a solid continuous film obtained by a one-time coating application. It is coated with a thin layer of plastic on metal, fabric,
plastic and other substrates to protect, insulate, and decorate. The coating can be gas, liquid or solid. Generally, the type and state of
the coating are determined according to the substrate to be sprayed.
1. Mainly methods:
(2). Electroless Ni/AU
(3). Immersion Tin
(4). OSP: Oragnic Solderability Preservative
2. Function of coating:
Protect from moisture and pollutants (which may cause electricity leakage);
Resistant to salt spray and mildew;
Anti-corrosion (such as alkali), improve resistance to dissolution and friction;
Improve fatigue resistance of lead-free solder joints;
Suppress arc and halo discharge;
Reduce the impact of mechanical vibration and shock;
High temperature resistance, release stress due to temperature change
3. Application of coating:
SMT & PCB assembly
Surface Mounted Package Adhesive Solutions
PCB Coating Solution
Component Encapsulation Solution
Portable electronic products and parts
LED assembly and application
New energy industry
PCB Board Coating Solution
4. Process characteristics:
In terms of the process of PCB surface coating, PCB manufacturers always face the challenge of balancing output,
materials, labor investment and safety. At the same time, they must consider the regulatory and environmental
issues involved in the process. Traditional surface coating methods, such as dipping and air gun spraying, usually
require high materials (input and waste) and labor costs (a lot of labor and labor safety protection). Solvent-free
surface coating materials increase costs.
5. The Advantage of coating:
The absolute speed is fast.
Durable and reliable.
Good selectivity accuracy (edge definition, thickness, efficiency) can be achieved.
The software supports changing the spraying mode in flight state,
and the spraying efficiency is High spraying efficiency.