Quick comparison
| Property | ABS | Aluminium | Stainless steel |
|---|---|---|---|
| Density | 1.05 g/cm³ | 2.7 g/cm³ | 7.9 g/cm³ |
| Weight class | Light | Medium | Heavy |
| Operating temp | −20 °C to +80 °C | −50 °C to +150 °C | −100 °C to +400 °C |
| Strength | |||
| Corrosion resistance | |||
| EMC shielding | No | Yes | Yes |
| Relative cost | |||
| Lead time | 5–8 working days | 7–10 working days | 10–14 working days |
How it leaves the workshop
Standard
As-machined surface — the cheapest option, suitable for internal or hidden enclosures where appearance isn't critical.
Matte
Even, low-glare finish that hides minor handling marks. The most-requested look for industrial controllers.
Glossy
Polished, light-reflecting finish. Use for consumer-facing products where the enclosure is part of the design.
Anodised
Electrochemical oxide layer on aluminium — corrosion-resistant, scratch-resistant and available in a range of colours. The standard for outdoor and harsh-environment metal enclosures.
EMC coating (internal)
Conductive paint applied to internal faces — turns a non-shielding enclosure into a faraday cage. Stackable with any material and finish.

