Glossary
Photo-etch
Thin, precisely etched metal sheets used for fine detail parts like seatbelts, grilles, and mesh screens.
Photo-etch, often shortened to PE, refers to detail parts cut from thin brass or steel sheet using a chemical etching process rather than moulded in plastic. Because etching can produce far finer lines and smaller holes than plastic injection moulding, photo-etch sets are used for parts that need to look genuinely thin, like seatbelt buckles, engine mesh, exterior grilles, and delicate railings on ships and vehicles.
Working with photo-etch is a different skill from plastic assembly. Parts are still attached to a metal fret and need to be cut free carefully, then bent along etched fold lines using a dedicated bending tool rather than fingers, since hand-bending tends to produce uneven or rounded folds instead of crisp corners. Because it is metal, photo-etch is glued with CA glue rather than plastic cement, which has no effect on metal surfaces.
A common mistake is trying to bend photo-etch cold with pliers or fingernails, which often distorts the fold or leaves visible tool marks on a part that is meant to look precise. Another is skipping a proper bending tool entirely for a first attempt, when even an inexpensive one produces noticeably straighter, more consistent folds than freehand bending.