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What are the Differences between UV Glue and Three Conformal Coating used in PCBA Processing

Jun 29, 2024

UV three anti-adhesive and three conformal coating are both materials used for product surface protection, but they are significantly different in several ways.

Curing method: The curing of UV rubber mainly depends on ultraviolet radiation, which can be cured and hardened rapidly in a few seconds. The three conformal coating requires a period of air drying or drying after coating to completely dry and harden.

Strength and durability: UV three-proof adhesive has high hardness and durability, which can maintain the integrity and appearance of the paint film under long-term ultraviolet irradiation. In contrast, the weather resistance, chemical erosion resistance and wear resistance of ordinary three conformal coating may be relatively low.

Coating method: The three conformal coating can be coated by brush coating, spray coating, roll coating and other ways. The UV three anti-adhesive is mainly through the role of photosensitizer, which requires the use of ultraviolet lamps for ultraviolet curing.

Application: Ordinary three conformal coating is widely used for the protection and decoration of various materials, including metal, wood, plastic and so on. The UV three anti adhesive is mainly used for the protection of plastics, electronic products, wood and other materials with special needs, especially in the need for rapid curing scenes.

Protection function: Three conformal coating has good resistance to high and low temperature performance, after curing into a transparent protective film, with superior insulation, moisture, leakage, shock, dust, corrosion, aging, corona resistance and other properties. In addition to the functions of waterproof, dustproof and shock-proof, UV three anti-rubber can also provide comprehensive protection for the product, extend the service life of the product, and improve the quality and stability of the product.