A clear acrylic kiosk enclosure looks like a box around a screen. In service it is a thermal, optical and security problem at the same time, and each of those has a different design answer.
A retail group rolled out 60 self-service kiosks in mall corridors. By month three, four enclosures had whitened around the screen cut-out, and two screens had failed from heat. Neither problem was the acrylic itself.
Acrylic kiosk enclosure design: thickness, cut-out and bezel
- Front panel: 8 mm, cut-out 4 mm larger than the screen aperture
- Side and rear: 6 mm clear or opal acrylic
- Base: 10 mm, with a steel plate if the unit is freestanding
- Air gap behind the screen: 30 mm minimum, vented top and bottom
The cut-out is where optical problems start. Acrylic machined flush around a screen aperture shows a bright edge that catches light and reads as a glowing outline. Leaving 4 mm of clearance and masking the gap with a black gasket removes it.
Bezel flatness matters on touch screens. A front panel that bows over a 400 mm cut-out presses on the touch surface and creates ghost touches. Either thicken to 8 mm or add a stiffening rib behind the panel.
Heat, security and the public touch surface
Electronics in a sealed acrylic box run hot. A 55 inch display dissipates 150 W or more, and a mall corridor at 26 C is not a cool room. Convection slots at the base, filtered vents at the top and a 30 mm gap behind the screen are the minimum.
Security is a fixing question, not a material one. Security Torx screws, a bonded rear door and a base plate anchored to the floor stop opportunistic removal. Acrylic itself can be struck, so an unattended kiosk in a public area should be 8 mm minimum and framed.
Cleaning is a specification item on a touch surface. Public sanitisers vary widely, and the alcohol-heavy ones dull a stressed acrylic edge. Specify a neutral detergent for the acrylic and diluted IPA for the screen, and put it in the cleaning contract.
Kiosks that dispense products overlap with vending design, covered in the PETG vending machine display guide. Where the enclosure protects a medical device, the acrylic medical device enclosure guide covers the cleanability requirements.
Send your screen model, mounting height and site photos to oversales@rpplexiglass.com for an enclosure design and quote.
Frequently Asked Questions
What thickness acrylic for a kiosk enclosure?
6 mm for an indoor unattended kiosk, 8 mm to 10 mm for unsupervised public areas or where vandalism is likely. The screen bezel area usually needs 8 mm to stay flat over a large cut-out.
How do you stop the enclosure overheating?
Provide convection slots at the base and vent holes at the top with a dust filter, and keep a 30 mm air gap behind the screen. A sealed acrylic box around a running display will overheat in a warm mall corridor.
What cleaning is safe for a public touch screen enclosure?
Diluted isopropyl alcohol on the screen, neutral detergent on the acrylic, both wiped and dried. Solvent-heavy sanitisers will craze the acrylic edge over time, especially where the panel is stressed at a fixing.