Reflective Sheeting for Traffic Signs

Which reflective sheeting is used on traffic signs?

Permanent traffic and street signs typically specify a performance class (ASTM Type and/or EN RA class), not only a structure name. Many programs land in HIP or microprismatic traffic families; engineer grade appears more often on commercial or lower-demand signage.

Recommended grade path (demo)

Need	Start with	Then verify
Standard road / street signs	HIP sheeting	Type III/IV family per SKU TDS
Higher-performance permanent signs	Microprismatic traffic	Type IV/VIII/IX/XI per report
Long approach / wide geometry	Long-distance films	Type VIII–XI class candidates
Daytime conspicuity accents	Fluorescent films	Per-color RA geometry

Substrate and process notes

• Common substrate: clean, smooth aluminum sign blanks.
• Application temperature and surface prep follow the TDS (demo card fields show where this lives).
• Printing: screen and some UV digital systems are SKU-specific — never promised at category level.

RFQ fields for this application

Agency specification reference, ASTM Type, colors, legend/print process, blank size or roll goods, quantity, destination, and whether a sample panel is required.

Catalog path on this site

Start from the reflective sheeting hub, then pick a grade family. Compare families in engineer grade vs HIP vs higher prismatic. For optics basics see what is retroreflective material?.

Commercial advertising faces (not agency traffic specs) use the advertising and sign shops path instead.