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.


Fineshut SP



Ships within 1~2 weeks

*Please note that we are unable to ship to PO boxes & military addresses. 

With Standard Tape
With Thinner Tape
No Tape
Fineshut SP 0.2
Fineshut SP 0.4


Close up image of Fineshut SP, using an electron microscope

Product Specifications

Usage Precautions

  • In order to maximize the light-absorption effect by the grooved shape on the surface, please make sure that the direction of the grooves are perpendicular to the light source.
  • There is light transmission due to micro foaming and grooved structure, which makes the material semi-transparent. Therefore it can not be used to block the transmission of light.
  • We cannot provide the raw material, this product always needs to be backed with double-sided tape.
  • For omni-directional light absorption, please check out our Fineshut SP variant.

Custom Cutting Service

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