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PCTFE Coatings (ULSHEED) Image

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

  1. Metal Free
    Extremely low metal elution from the coated surface, allowing the surface to keep clean.
  2. Excellent Corrosion Resistance
    PCTFE coating with extremely high permeability/barrier performance protects important substrates.
  3. Low Dusting
    Its high hardness and high abrasion resistance properties reduce dust emission from the coated film, preventing factors to generate particles.
  4. 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)

Graph of 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.