noun
photosensitive resin
Technical term used in manufacturing, 3D printing, and photolithography.
この部品は感光性樹脂で作られています。
This part is made of photosensitive resin.
光硬化性樹脂 specifically refers to resins that harden when exposed to light, while 感光性樹脂 is a broader term for any resin that reacts to light.
Compound of 感光性 (photosensitivity) + 樹脂 (resin).