Introduction – Ultraviolet (UV) market –

The UV industry is growing in equipment business such as UV irradiators and in material business such as UV adhesives and inks. It is expected to expand its market to living space with various sterilization applications as well as to medical equipment. By utilizing its existing business infrastructure on optical products, ASAHI RUBBER continues to propose innovative products to the UV industry.

Product selection

White silicone inks for UV are available for near-ultraviolet (NUV) and deep-ultra (DUV).

	DUV	NUV
	250~365nm	385~405nm
Hard type	FR-UV-xx / PR-UV-xx (Under development)	FR-6203-N
Soft type	SWR-UV-xx (Under development)	SWR-PK-03-NUV

Resistance against ultraviolet irradiation

White silicone ink for UV has extremely strong resistance to UV and at the same time protects the object to be coated from UV light, so it improves UV resistance by painting in places where deterioration by UV light is a concern.

PCB（FR-4）（with“no ink coated”）

PCB（FR-4） with SWR-PK-03-NUV coated

Compared with “no ink coated”, neither discoloration nor visual/appearance deterioration on the test piece surface are observed.