VONCOAT W-26 & W-386

Functional Products

Electronics

Automotive

Packaging

Health Care

Color

Display

House Equipment / Infrastructure

Functional Materials

Environment-friendry water-based emulsion pressure sensitive adhesive / 1 component / Strong adhesion and heat resistance

Features

  • Environment-friendly (Low VOC)

  • Heat resistance

  • Curved-surface adhesion

  • 1 component

Performance

Product name W-26 W-386
Appearance Milky white emulsion Milky white emulsion
Nonvolatile content (%) 48.0-52.0 48.0-52.0
Viscosity (mPa・s @25℃) 12,000-16,000 12,000-16,000
pH 7.5-8.5 7.5-8.5
Compositions Double sided tape Double sided tape
Peel strength
[N/20mm]
SUS
(Exfoliation)
18
(AF)
22
(AF)
PP
(Exfoliation)
16
(AF)
19
(AF)
PE type PU foam
(Exfoliation)
4
(Material broken)
6
(Material Broken)
Ball tack 14 10
Holding power SUS 70℃ 1kg 24h< 24h<
Constant load holding power SUS 3h 5mm 2mm
PP 3h 15mm 10mm
Curved surface adhesion PE type 
PU foam
SUS No peel off No peel off
PP No peel off No peel off
PEs type
PU foam
SUS No peel off No peel off
PP No peel off No peel off

Process conditions

Double-sided tape

  • Processing method: Transfer method
  • Composition: Coating substrate: Release paper/ Core substrate: Rayon NWF(14g/㎡)/ Coating amount: each 63g/㎡(dry)
  • Drying condition: 80℃ x 3 minutes
  • Aging condition: 40℃ x 3days
  • Backing substrate: PET Film(25μm)…for cureved surface holding refer to below

Measurement conditions

Peel strength:

  • Adherends: SUS, PP, Test piece: 20mm width
  • Lamination: 2kg roller X 1 back and forth, Aging conditions:23℃, 50%RH X 30min.
  • Measurement conditions: 23℃, 50%RH, Peel angle: 180°, Peel speed: 300mm/min.

Ball tack:

  • J. Dow Method (23℃, 50%RH)

Holding power:

  • Adherends: SUS, PP, Lamination size: 10mm X 50mm
  • Lamination: 2kg roller X 1 back and forth, Aging conditions: 23℃, 50%RH X 30min.
  • Measurement conditions:70℃, 1kg load, Keep 24hrs or note the time for drop

Constant load holding power:

  • Adherends: SUS, PP, Paste Size: 10mmx50mm
  • Measurement conditions: 23℃, 300g load, peel distance after 3h or note the time for drop

Curved surface adhesion:

  • Backing substrate: Ether type urethane foam 6mm thickness, density 0.02g/c㎥ and Esther type urethane foam 6mm thickness, density 0.03g/c㎥
  • Adherends: SUS, PP, Test Piece: 40mm X 40mm
  • Measurement conditions: With urethane form as backing substrates, winding double-sided tape on adherends like U shaped and 23℃ X 24h keep, then measure peel distance after 24h at 80℃

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