PCTFE Coating (ULSHEED)
What is ULSHEED?
Original metal-free fluoropolymer coating with high chemical resistance and low dusting.
This offers a superior performance to general corrosion resistant fluoropolymer coatings (PFA etc.) in every aspects and has been used in a wide variety of situations.
Features
-
- Metal Free
- Extremely low metal elution from the coated surface, allowing the surface to keep clean.
-
- Excellent Corrosion Resistance
- PCTFE coating with extremely high permeability/barrier performance protects important substrates.
-
- Low Dusting
- Its high hardness and high abrasion resistance properties reduce dust emission from the coated film, preventing factors to generate particles.
- Various Services Available
- Recoating of coated films and minor repairing of substrates are available.
Results of Metal Elution Test
Unit : ppb
| Element | Period of Immersion (days) | |||
|---|---|---|---|---|
| Blank | 1st day | 3rd day | 8th day | |
| Li |
＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Na | ＜0.01 | ＜0.01 | 0.01 | ＜0.01 |
| Mg | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Al | ＜0.01 | 0.01 | 0.01 | ＜0.01 |
| K | ＜0.01 | 0.01 | 0.01 | ＜0.01 |
| Ca | ＜0.01 | 0.01 | 0.01 | ＜0.01 |
| Ti | ＜0.01 | 0.01 | 0.01 | 0.01 |
| Cr | 0.01 | 0.01 | 0.01 | 0.01 |
| Mn | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Fe | ＜0.01 | 0.01 | 0.01 | ＜0.01 |
| Ni | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Cu | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Zn | ＜0.01 | 0.01 | 0.01 | 0.01 |
| Ag | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Cd | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Pb | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Element | Period of Immersion (days) | |||
|---|---|---|---|---|
| Blank | 1st day | 3rd day | 8th day | |
| Au |
＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Ba | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Be | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Bi | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Co | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Ga | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Ge | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Mo | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Nb | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Sb | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Sn | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Sr | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Ta | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Tl | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| V | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
| Zr | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 |
- Immersion Conditions
- 50% hydrofluoric acid, R.T.
- Sample (specimen)
- SUS304＋ULSHEED
- Analysis Method
- ICP mass spectrometry
- Number of Elements
- 32
Comparison of He Permeability Coefficient (vs. PFA)
- Test Sample
- ULSHEED, PFA Coated Films (Surface Layer)
- Test Equipment
- Quadrupole Mass Spectrometer (Qmass), Qulee with YTP (From ULVA)
- Measurement Method
- Differential Pressure Method (JIS K 7126-1 Standard)
- Test Temperature
- 25～300[℃]
- Test Gas
- General Industrial He, High Purity Air
- Purge Gas
- General Industrial N2
Various Service Systems
- Recoating of coated films
- Replacement of other coatings such as PFA (stripping of coated film and then recoating with ULSHEED)
Application Examples
- Coating onto semiconductor wet equipment components
- Coating of corrosion-resistant components, etc.