Shin-Etsu

KY-100

SHIN-ETSU SUBELYN®
Fluorinated Anti-smudge Coating KY-100 Series

KY-100 Series are coating materials consist of organofluorine group and reactive silyl group. When very thin coatings with KY-100 Series are applied onto various substrates, excellent surface characteristics are obtained.

Features of KY-100 Series

Anti-smudge
A smooth fluorinated layer is formed on the surface and prevents stains with dirt.
Removability of fingerprint
Persistent fingerprint can be removed easily by wiping.
Water and oil repellency
Repels water/oil and keeps substances clean.
Low dynamic friction
Low friction makes wiping off easy and protects surfaces from scratches.
Durability against scratches
Protects surfaces from scratches.
Very thin layer
Preserves substance’s optical properties and texture.

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Coating layer formation mechanism

Coating layer formation mechanism

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Marker ink repellency test illustrates the effect of the coating

Treatment with KY-164 provides marker ink repellency and ease of ink wiping off.

Control

KY164 Treated

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Properties

Test item Excellent smoothness
X-71-195
UV resistance
KY-1901
Soluble in common solvents
KY-108
Viscosity
at 25ºC
1.0 mm2/s 1.0 mm2/s 1.2 mm2/s
Specific gravity
at 25ºC
1.48 1.47 1.43
Solid content 20wt%
Solvent Novec 7200 (3M)
Applicable thinner Fluorinated solvents Fluorinated solvents Common solvents
(IPE , Hexane, THF, etc.)
Contact
angle
Water 117 deg 116 deg 115deg
Oleic acid 77 deg 76 deg 78deg
Sliding
angle
Oleic acid 2 deg 2 deg 10deg
Release force * 1
N/19mm * 1
0.05 0.07 1.20
Antifouling Marker ink
repellency
Ease of
fingerprint
wiping off
Dynamic friction
coefficient * 2
0.03 0.03 0.3
Steel wool rub test ×
Alkali resistance
Acid resistance
Salt spray resistance
UV resistance

◎:Excellent ○:Good △:Fair ×:No Good

KY-1901 Durability data

Test conditions

Coating process: Dipping (soaking for 10 sec → pull up at the speed of 150mm/min → cure)
Solid content of coating solution: 0.2% [thinner: Novec 7200 (3M)]
Substrate: Slide glass Cure condition: 40ºC/80%RH for 8hr
*1 No.31B adhesive tape (Nitto Denko, 19mm width); Adhesive tape pressing at 20g/cm2 for 24hr; Peal off with 180º direction and 300mm/min speed.
*2 BEMCOT unwoven cloth (Asahi Kasei, 10mm x 30mm); 100g load

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Coating process

Coating process

Vacuum deposition


Spraying


Dipping


* Please refer to the Technical Date Sheet regarding pretreatment and dilution concentration or contact us.
 We can introduce some subcontract processing manufacturers.

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Applications

Anti-smudge, water/oil repellency, fingerprint removability and low dynamic friction are realized by formation of a smooth fluorinated layer on various surfaces such as inorganic anti-reflective coating (SiO2), glass, and hard coating layer.

  • Touch screen car stereos
  • Optical lens
  • Displays
  • Anti-reflective film
  • Hardcoated film
  • China and porcelain
  • Electronic devices
  • Glass
  • Mirror

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Operationg Infomation

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