UV varnish is a kind of circuit board protection adhesive or coating adhesive, is through the ultraviolet light (UV light) irradiation fast curing varnish. The conventional three-proof paint silicone three-proof paint, acrylic three-proof paint, polyurethane three-proof paint, these types of three-proof paint is usually a solvent-type three-proof paint, due to the presence of benzene and other organic solvents, has a flammable, VOC emissions and other hazards, and hazards to human health, long-term exposure to induce occupational diseases. With the improvement of environmental protection requirements, and domestic and foreign restrictions on the use of volatile solvents, new environmentally friendly solvent-free three-proof paint has become an urgent requirement of the market.

Compared with ordinary three-proof paint, UV three-proof paint mainly has the following differences:

1, The hardening mode is different: ordinary three-proof paint after coating has to go through a period of air drying or drying to be completely dry and hardened, while UV three-proof paint can be rapidly cured and hardened in a few seconds by UV irradiation. Moisture curing is possible for the shaded part. It improves the production efficiency, and it is easier to realise the flow operation.

2, Paint film thickness can be selected from different viscosities according to customers' needs, and the film thickness can be controlled at 50~200um.

3, Environmental protection: 100% solid content, no VOC emissions, will not produce harmful gases and odours, in line with ROHS/REACH requirements

4,  Better improve the shock resistance of electronic components, protect the reliability and stability of electronic products.

Three-proof paint is widely used in electronic and electrical equipment circuit board protection, such as intelligent home appliances, automotive electronics, power supply / frequency conversion, intelligent industrial control, military ships, outdoor precision equipment. Three-proof paint coated on the surface of the circuit board, cured to form a layer of dense protective film, to protect the circuit board from corrosion of the external environment (moisture, mould, salt spray, high dust, vibration, corrosive gases, etc.), to improve the reliability of the product, and increase the use of the safety factor.

If you need to know more about the resins for UV triple-proof paint, please feel free to contact us!