Fineshut SP is a light-absorbing polyurethane foam sheet originally developed by our predecessor, Koyo Kogyo Co. It combines excellent optical properties with an amazing thinness
of roughly 0.22 mm. Fineshut SP has a long track record of high performance and reliability that can withstand mass production and is REACH & RoHS 2.0 compliant. It has been
primarily used for stray light prevention in the mirror boxes of industry-leading single-lens reflex cameras.