Showa Denko America

NPR-5 is a curable type of solder mask, consisting of epoxy resin that is suitable for FPC. The grade withstands hard crease of FPC and enables maintaining the flatness of FPC. The UV radiation process and developing process are not required.

Series Name NPR-5
Type Heat curable Flex Solder Mask
Applications FPC
  • Withstand hard crease of FPC, small springback
  • UV radiation and developing free process contributes to cost down
  • Halogen free (JPCA, IEC) and RoHS Directive are supported.
  • Maintaining a flatness of FPC after curing.