An acrylic trophy plaque gets judged in three seconds and then kept for twenty years, which sets two very different requirements: it has to photograph well and it has to survive storage in a cupboard.
A regional design awards programme ordered 140 blocks at 20 mm with sub-surface engraving. Half came back within a month because the bases were supplied unweighted and the blocks tipped on the gala table.
Acrylic trophy plaque body and engraving
- Flat award: 10 mm, surface laser engraving
- Freestanding block: 20 to 30 mm, sub-surface
- Base: minimum one third of plaque height, weighted
- Edge: flame polished, chamfer optional
Sub-surface engraving is the technique that sells these pieces. The laser marks inside the block and the mark is then viewed through 10 mm of clear material, so lettering appears to float. It only works if the block is thick enough and the back face is polished.
Stands, bases and the drop test
Stability is geometry plus mass. A tall block with a light base is a tipping hazard at every awards dinner, and a chip on a polished corner cannot be repaired invisibly. Specify a base that is at least a third of the height and add a steel insert.
The drop test is worth doing before an event, not after. A 20 mm block dropped from table height onto a hard floor usually survives with an edge scuff; a 10 mm flat award dropped the same way often splits along the engraving if the engraving crosses the full width. Leave a 15 mm clear margin.
For display hardware that suits these pieces, see museum display case glazing, which covers the optical and lighting side of showing an object at its best.
Send your artwork, plaque size and quantity to oversales@rpplexiglass.com for an award quotation.
Frequently Asked Questions
What thickness acrylic trophy plaque?
10 mm for a flat award with surface engraving, 20 to 30 mm for a freestanding block with sub-surface engraving. The thickness is what gives the floating lettering its depth.
Does laser engraving fade on acrylic?
No, the mark is in the material, not on it. Frosted laser engraving stays legible for the life of the piece as long as it is not abraded; paint-filled engraving can wear at the edges over decades.
Why does a plaque stand fall over?
Base too light and centre of mass too high. A 20 mm block on a 60 mm base tips at a nudge; the base should be at least a third of the plaque height and weighted.