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Electronics
  • Markets & Applications
  • Electronics
  • Mobile phone(flexible display)
  • KELLOMER STA-2140
KELLOMER STA-2140
  • Description

    · Star branched polyester acrylate

  • Key features

    · Very high hardness
    · Excellent scratch resistance
    · Excellent chemical resistance
    · Fast cure response

  • Functionality No.

    40

  • Diluent (%)

    -

  • Color(APHA)

    100 max

  • Viscosity (cps, 25℃)

    4300

  • Refractive index (25℃)

    1.492

  • Polymer solid (%)

    100

  • Molecular weight (Mw, g/mol)

    14100

  • Gel content (%)

    93

  • Cure speed (dosage, mJ/cm2)

    450

  • Pencil hardness

    4H

  • Tensile strength(PSI)

    4300

  • Elongation(%)

    2

  • Solvent resistance (MEK rubbing)

    >100

  • Yellow index (ΔE)

    3.8

  • Gloss(60º)

    126

  • Reactivity

    5

  • Hardness

    4

  • Flexibility

    1

  • Adhesion

    1

  • Chemical resistance

    5

  • Scratch resistance

    4

  • Application

    · Special coatings
    · Coatings requiring scratch and chemical resistance
    · Flexible display coatings
    · High hard coatings

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