Surface treatment
For targeted protection and an individual look
In housing technology, surface treatment primarily pursues two goals. On the one hand, protection from external influences, and on the other hand, giving the design an individual touch.
In the case of die-cast aluminium, extruded aluminium profiles or sheet metal, surface finishing is unavoidable. The surface treatment protects against corrosion or rust and thus ensures the longevity of the housing.
Moreover, the conductivity can be increased by surface treatment. Partial treatment is also possible – for example, for contact points of connectors or of components that require a conductive connection to the housing.
Probably the best known surface treatment is painting, which we offer in wet paint or powder coating process.
Our surface treatment services
Painting / powder coating – Stand out from the crowd
We paint aluminium die castings as requested in RAL, Pantone or special colours using powder coating or wet paint process. The structure and gloss level of the lacquer provide a special feel and an individual housing design.
Passivating – High corrosion protection and EMC conductivity
After washing, the aluminium housings are passivated by SurTec650 chromium(VI). Passivation creates a thin protective layer on the aluminium, which provides high corrosion protection and EMC conductivity. It also provides an excellent adhesion primer for subsequent painting. SurTec650 passivation is RoHS compliant and an alternative to a chromium containing Alodine treatment.
Anodisation – The noble surface for aluminium
Protects the aluminium parts from corrosion and also provides a noble design. Coloured anodising is also possible perfectly well. However, anodising is only suitable for aluminium profiless or milled parts from solid aluminium. This process is unsuitable for aluminium die casting or chill casting.
EMC coatings – Protection from electromagnetic interference
Plastic surfaces are conductively coated by means of copper conductive lacquer or an aluminium vapor deposition. An additional conductive EMC gasket can be used between the housing parts to ensure even greater shielding.
What customers say about us
Success Stories
IoT Button Injection Molding
Development and production of a housing for an IoT button using plastic injection moulding. From design, electronics assembly to delivery in the final packaging.
Mail order pen
A LoRaWANⓇ-based smart button in plastic injection molding. Electronic developed by Miromico together with Swiss Post, with an optical identification code (OID codes).
Housing plastic injection
Sensor electronics and LED built into a compact injection-molded plastic housing with translucent plastic front. Control in an extruded aluminium profile.
Send us a sketch or STEP file for a price enquiry.
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