Monday
Jan112010
Stainless Steel with colored scale
Recommended Process Line for ChemPolish™ for 300 Series SS with Colored Scale
Step |
Process Line |
Concentration & Temperature |
Time |
Heater Equipment |
Process Equipment |
Exhaust Required |
---|---|---|---|---|---|---|
1. |
25% by volume 130°-180°F (45°-80°C) |
5-10 Minutes |
SS or Quartz - OK Teflon - OK Titanium - OK |
SS - OK PVC - OK at lower temps PP - OK |
No |
|
2. |
Cold Rinses, cascaded. Tap Water OK Can usually be sent to drain with only pH adjustment, if needed |
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3. |
50% by volume Part A + Part B 180°-200° F (80°-90° C) |
60-90 Minutes |
Teflon - No Titanium - OK Quartz - OK |
PVC - No SS - OK PP - OK |
Yes 180° F Max w/reinforcement |
|
4. |
Cold Rinses, cascaded Tap Water OK, Can usually be sent to drain with only pH adjustment, if needed |
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5. |
100% by volume 70°- 90°F (20°-30°C) |
30-60 Seconds |
Teflon - OK Titanium - No Quartz - OK |
PVC – OK PE - OK PP – OK |
Yes |
|
6. |
Cold Rinses, Cascaded. Tap water OK (May need to be treated for Nickel and Chromium removal & pH adjustment). |
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7. |
100% by volume 175°-185° F (78°-82° C) |
3-8 Minutes |
Titanium - ?? Quartz - OK |
CPVC - OK PP - OK PVDF - OK |
Yes |
|
8. |
Cold Rinses, cascaded. Deionized Water for best results. (Will need to be treated for Nickel and Chromium removal & pH adjustment) |
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9. |
Nitric Acid Desmut (Needed only when SS has significant Carbon Content) |
50% by Volume Commercial 42° Be’ Nitric Acid Unheated |
30-60 Seconds |
DNA |
PE - OK PP - OK PVC - OK SS - OK |
No |
10. |
Cold Rinses, cascaded Deionized Water for best results (Can usually be sent to drain with only pH adjust) |
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