Backlit lightboxes.
48%light through
Scenes are concept visualizations, not Epic's facility or material.
What the numbers have to be
Light through
at least 40 %
Below about 40% a standard-depth box has to work too hard: the face reads dull and the fix is usually more lamps, which brings the hot-spotting back.
Basis weight
no more than 260 g/m²
A heavy face loads the frame and holds creases from the roll longer. Under 260 g/m² tensions cleanly on standard extrusion.
Stock width
at least 300 cm
A seam in a lit panel is a line nobody stops seeing. Width is the only thing that removes it.
These are Epic's recommendations for a job of this shape, not a published standard. A deeper box tolerates a higher transmission; a very shallow one needs less.
What clears it
| Fabric | Light through | Basis weight | Stock width | Verdict |
|---|---|---|---|---|
| Eos | ✗0.0* | ✓260 | ✓320 | Not for this |
| Rio | ✓59.0* | ✓175 | ✓320 | Clears it |
| Lumex | ✓48.0* | ✓195 | ✓320 | Clears it |
| Aureline | ✗39.0* | ✓260 | ✓320 | Not for this |
| Halo | ✓48.0 | ✓180 | ✓320 | Clears it |
| Tesa | ✓40.0* | ✓230 | ✓320 | Clears it |
✓ meets it ✗ does not – not measured yet, so not claimed either way * derived from the published figure at the other end of the same measurement
Getting it right on site
Depth does more work than any specification. Lamps sitting 80 mm behind a face at 48% transmission will read evenly; the same face at 40 mm will show every LED. If the box is fixed and shallow, change the fabric rather than the lamps.
Hot-cut the edge where the construction allows it. A sealed edge going into a keder channel means no hem bulk at the frame, and on a lit panel any thickness at the edge shows as a dark line.
Size the panel against published shrinkage, not against the frame. Transfer heat moves the cloth, and a panel cut to the extrusion before printing will not fit it after.
Get in touch
Talk to Epic
Where we are
725 E. Debra Ln.Anaheim, CA 92805