Food processing environments can be demanding on printed graphics. The decal material, adhesive, and laminate should be selected according to the actual environment. Lamination can help protect printed graphics from moisture, UV exposure, scratches, and routine handling, while different vinyl and adhesive options may be better suited to particular surfaces or applications.
Cast vinyl can be useful when decals need to conform to curves or more complex equipment surfaces, while calendered vinyl can work well on many smooth, flat equipment panels. Exposure to
aggressive cleaning chemicals or unusual temperatures should be evaluated separately rather than assuming that one vinyl material will withstand every processing environment.
For demanding applications, testing a decal on the actual equipment surface and under expected cleaning conditions can help determine whether the material, adhesive, and laminate are appropriate before a larger production run.
Placement is especially important on food processing equipment because the decal needs to remain visible without interfering with sanitation, operation, or maintenance.
Whenever possible, place decals on smooth, non-food-contact exterior surfaces such as equipment housings, frames, control panels, guards, and electrical enclosures. Identification decals should be positioned where operators and maintenance personnel can find them easily, while safety information should be located where it can be seen in relation to the hazard it addresses.
Avoid placing standard adhesive decals on direct food-contact surfaces, inside hoppers or chutes, or where a damaged or lifted decal could create an unnecessary contamination concern. Decals should also be kept away from moving components,
extremely hot surfaces, seams that prevent good adhesive contact, and locations where they interfere with equipment operation.
If equipment will be cleaned frequently, consider where spray, scrubbing, chemicals, steam, and repeated handling will occur. Moving a decal a short distance away from the harshest exposure may improve its service life while keeping the information visible. Replace any decal that starts to lift or peel, so a loose edge never becomes a contamination concern.