Capability 03
Surface treatment
Proal has broad knowledge of surface treatment methods for die-cast aluminium: blasting, tumbling, ball polishing and complete chromating with subsequent powder coating. Together with you we find the solution that best fits the need.
The surface is the first thing your customer sees and the last thing protecting the part. For die-cast aluminium, choosing a treatment is as much about corrosion protection and adhesion as it is about looks.
Chromating and powder coating run on our own line at the Polish plant. Owning the process means we can adjust parameters for a specific part instead of adapting the part to an external supplier’s standard recipe.
Whether you need a matte technical finish, a high-gloss decorative surface or simply corrosion protection ahead of painting at your end — we produce samples and agree a limit specimen before the series starts.
Methods
- Mechanical
- Blasting, tumbling, ball polishing, vibratory deburring
- Chemical
- Complete chromating line
- Coating
- In-house powder coating
- Finishing
- Pad printing and marking
- Control
- Samples and an agreed limit specimen
What is included
- Advice on method based on environment and functional requirements
- Sample parts before series production
- Chromating and powder coating on our own line
- Masking of surfaces that must stay untreated
- Visual inspection against an agreed limit specimen
Plants
Where we treat surfaces
Chromating and powder coating run on our own line in Wejherowo, Poland.
Industries
Related industries
Medical technology
Enclosures, chassis and load-bearing structures for medical equipment, where the documentation matters as much as the part.
Professional foodservice
Components for manufacturers of professional kitchen equipment, where parts must survive heat, grease and daily cleaning for decades.
Industry & process
Housings, covers and load-bearing components for pumps, valves and process equipment — where tightness and accuracy decide.
Next step
Got a drawing?
Send it over. You will get a technical assessment and an indicative price from someone who will actually make the part — not from a sales organisation.
We accept STEP, IGES, 3D models and 2D drawings. Confidentiality goes without saying.