Products

Impact force resistant type double coated tapes

Double coated tape series produced employing non-solvent manufacturing method suitable for fixing of structural components that need impact force resistance.


Comparison

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Product Name

 G9120/G9120W

Suitable use

 For impact force resistance, and fixing of acrylic windows or other parts.

Application
  • Cellular phones

Features
  • Environmentally friendly non-solvent manufacturing method.
  • High impact force resistance, and high initial adhesion.
  • High adhesion to UV coated surface.
    (G9220 recommend for adhesion to metallized surface)
non-solvent manufacturing method

Structure

Structure

Specifications

Product Name G9120 G9120W*2
Main component Acrylic base Acrylic base
Carrier Nonwoven fabric Nonwoven fabric
Color Semi transparent Semi transparent
Adhesive thickness(µm) About 200 About 200
Release paper thickness(µm) About 120 About 120+120
Bonding strength(N/20mm) 15 15
St'd size (width & length) 500mm x 50m 500mm x 50m

* UL certificated. UL file NO.MH15431
*2 G9120W: With both side release paper


Application Example

Application Example
For fixing of window frames of mobile phone LCD displays and nameplates.

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Technical Data

1.Bonding strength on various type of substrate (180° peeling)


Test Piece condition
Tape width: 20mm
Bonding condition: One stroke with 2-kg roller
Measuring condition: 23°C±5°C 60%±20%RH
Peel speed: 300mm/min
Backing material: 25µm PET
  • [Left at RT for one hour before measurement]
Results
(N/20mm)
Substrate SUS ABS Acrylic UV coated surface
Peeling strength 15.7 12.0 12.9 10.2

2.Reliability of bonding strength after adhesion under different conditions (180° peeling)


Test Piece condition
Tape width: 20mm
Bonding condition: One stroke with 2-kg roller
Peel speed: 300mm/min
Backing material: 25µm PET
  • [Left at RT for one hour and aged under each test condition before measurement]
Results
Results
(N/20mm)
Substrate condition Initial 7 days 14 days
ABS 70°C 12.0 14.7 15.1
40°C90% 12.5 14.2
40°C 14.1 14.7
Acrylic base 70°C 12.9 18.4 16.9
40°C90% 15.8 17.4
40°C 18.4 19.1

3.Holding Power at different temperatures


Test Piece condition
Substrate: Stainless steel plate (SUS304)
Bonding area: 25mm x 25mm
Bonding condition: One stroke with 2-kg roller
  • [Left at RT for one hour and then at each temperature for 30 minutes before measurement]
  • [Creep length after one-hour application of 1-kg load]
Results
Measurement temperature 40°C 60°C 80°C
Creep length(mm) 0.3 0.5 1.0

4.Ball tack test (J. Dow method)


Results

Ball No:23 to 26

5.Impact force resistance


Test Piece condition
Substrate: ABS (50 mm square)/ Acrylic plate (15 mm square)
Bonding area: 15mm x 15mm
Test atmosphere: 10°C
Impact force: Dropping 300g weight onto the ABS face from a height of 15 cm.
  • [Left at RT for one day after adhesion, and then under each test condition for 30 minutes before measurement]
  • [Check whether the acrylic plate has been dropped]
Results

Impact force resistance(n=5):No dropped nor peeled portion found

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coution
Note on the characteristic data given - Data on the characteristics of the products described in this page based on the results of evaluations carried out by the company. This does not guarantee that the characteristics of the product conform with your usage environment. Before use, review the usage conditions based on evaluation data obtained from the equipment and substrates actually used.