Electronics
- Markets & Applications
- Electronics
- Mobile phone(flexible display)
- KELLOMER STA-2140
KELLOMER STA-2140
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Description
· Star branched polyester acrylate
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Key features
· Very high hardness
· Excellent scratch resistance
· Excellent chemical resistance
· Fast cure response -
Functionality No.
40
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Diluent (%)
-
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Color(APHA)
100 max
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Viscosity (cps, 25℃)
4300
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Refractive index (25℃)
1.492
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Polymer solid (%)
100
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Molecular weight (Mw, g/mol)
14100
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Gel content (%)
93
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Cure speed (dosage, mJ/cm2)
450
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Pencil hardness
4H
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Tensile strength(PSI)
4300
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Elongation(%)
2
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Solvent resistance (MEK rubbing)
>100
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Yellow index (ΔE)
3.8
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Gloss(60º)
126
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Reactivity
5
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Hardness
4
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Flexibility
1
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Adhesion
1
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Chemical resistance
5
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Scratch resistance
4
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Application
· Special coatings
· Coatings requiring scratch and chemical resistance
· Flexible display coatings
· High hard coatings