Frequently Asked Questions

Surface Treatments

• How do I select the most appropriate treatment for my application?
  
• What materials can be surface treated?
  
• Can ferrules be treated?
  
• What are the operating temperatures for Restek treated surfaces?
  
• How can I receive pricing for custom surface treatment?
  
• How will Restek surface treatments work in my acidic environment?
  
• What is Siltek® Deactivation?
  
• What are the unique benefits of Siltek® deactivation?
  
• Does anyone else offer an equivalent to Siltek® deactivation?
  
• Why is Siltek® on glass gold in color?
  
• How thick is the Siltek® layer?
  
• What is the maximum temperature limit for Siltek® deactivated glass?
  
• Does Restek offer custom Siltek® treatment?
  
• Why do Silcosteel® treated pieces have different colors?
  
• Can you coat my Varian ion trap with a Silcosteel® layer?
  
• Which Swagelok® ball valves can you coat and which do you not accept for custom coating?
  
• I have a Swagelok® metering valve; can you custom coat it?
  
• Will you re-deactivate my Siltek® treated glass liners or treated Siltek® metal liners after I clean them?
  
• Are secondary deactivations available for Sulfinert® treated materials?
  
• Are Silcosteel® treated parts coated with secondary deactivations?
  
• How tightly can the tubing be bent?