Surface Treatment

Protonautics’ surface treatment services are in house. To ensure we have complete control over Milspec and corrosion protection coatings, we have established an internal Anodising line capable of meeting Mil Spec 8625F, Type 2 and Type 3 coatings. We also provide Chemical conversion of aluminium using a ROHS compliant system.

To ensure routine control our processes and expedite developmental iterations, we have also established an internal test laboratory and corrosion resistance testing (salt spray/Salt fog test) as per ASTM-B-117.

Although larger components can be treated by negotiation, current physical process limits are:

  • Anodising (both Types) 850mm
  • Chemical Conversion 550mm
  • Passivation of 450mmᶟ
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Protonautics CNC Machined components used in laser eye surgery equipment with paint infill & clear anodising surface finishing
Hard, gold, purple, clear, red, black Anodised CNC Machined parts; with paint in-fill

Our procedures are developed by highly trained personnel and have passed regular auditing. We can confidently offer the following services to you:

  • Mil Spec compliant chemical surface finishing to:
    • MIL-DTL-5541 Type II, Class 1A and 3 using SurTec 650 and a range of other related treatments
    • MIL-A-8625 Types II (Class 1 and 2) and type III (Hard Anodizing)
  • Passivation of stainless steel to AMS2700 Method l: Nitric (replaces superseded QQ-P-35) and AMS2700 Method II: Citric acid.
  • Electropolishing of Stainless Steel
  • AS 9100 Scope includes Chemical Surface treatments for specialized aerospace & Defence applications
  • Internal test laboratory and corrosion resistance testing (salt spray/Salt fog test) as per ASTM-B-117
  • Paint infill

The benefits of Protonautics machining and treating your components in-house:

  • We reduce risk, time and cost when we machine and treat your components
  • Surface treatment is included in the scope of our AS9100 certification; meaning it has been externally audited with the subsequent confidence in its efficacy
  • Removes the need to go through a process to approve Electroplater subcontractor and their special processes
  • Cost and time are saved due to minimising transport of components – in addition, the risk of transportation damage is reduced with a one-stop-shop
  • Damage at the subcontracting stage is eliminated