Double coated tapes

Strong adhesive type double coated tapes

Strong adhesive tapes with variation of thickness produced using Green tape ®.

  • Product name
    UT2340
  • Features
    • No solvent used at coating process. UV curable manufacturing method.
    • Volatile Organic Compounds(VOC) values are lower than the VOC Guidelines of the Ministry of Health, Labour and Welfare of Japan.
    • Ideal for 3D curved surfaces due to excellent static load resistance.
    • High heat resistance; can be used in environments of up to 100°C.
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Structure

Specifications

Product name UT2340
Main component Acrylic base
Carrier Nonwoven fabric
Color Translucent
Adhesive thickness(µm) About 400
Release paper thickness (µm) About 150
Bonding strength(N/20mm) *1 28
St'd size(width & length) 1,000mm x 50m
Warranty period from manufacturing date 12 months
  • *190° peeling strength

Ideal for bonding plastics and metals for front panels used for TV sets.

1.Bonding strength on various type of substrate (90° peeling)

Test Piece condition
Substrate:Stainless steel plate (SUS304)
Tape width:20mm
Bonding condition:One stroke with 2-kg roller
Measuring condition:23°C±5°C 60%±20%RH
Peeling speed:300mm/min
Backing material:50µm SUS foil

[Left at RT for one day before measurement]
Results

(N/20mm)

90° peeling strength Product name Substrate
SUS ABS Acrylic PC/ABS PS PC SECC Black print
UT2340 28.1 24.0 26.5 29.6 28.8 32.0 21.0 20.8

2.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
Backing material:25µm PET

[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
Creep length (mm) Product name Measurement temperature
40°C 100°C
UT2340 1.4 2.6

3. Curved surface bending

Test Piece condition

Substrate(1):Aluminum plate 0.4mm x 20mm x 180mm
Substrate(2):Polystyrene plate 2mm x 25mm x 200mm
Bonding condition:One stroke with 2-kg roller
Measuring condition:60°C

[Left at RT for one day, then lifting height of the edge after the elapsed time is measured]

Results
Lifting height (mm) Product name Elapsed time
1hour 3hours 5hours 8hours 24hours
UT2340 0 0 0 0 0

4.Amount of VOC diffusion

<Methods of analysis>
JIS A-1901:Small chamber method

Results

(µg/m3)

VOC amount

of diffusion

Product name

Volatile organic compound

The indoor concentration

guideline value *

UT2340
UT2340 Formaldehyde 100 2.5 or less
Toluene 260 0.5 or less
Xylene 870 0.5 or less
Para-dichlorobenzene 240 0.5 or less
Ethylbenzene 3,800 0.5 or less
Styrene 220 0.5 or less
Chlorpyrifos 1 0.02 or less
Dibutyl phthalate 220 0.02 or less
Tetradecane 330 0.5 or less

Bis-(2-ethylhexyl)

phthalate

120 0.02 or less
Diazinon 0.29 0.02 or less
Acetaldehyde 48 2.5 or less
Fenobucarb 33 0.02 or less
  • The indoor concentration guideline value by the Ministry of Health, Labour and Welfare of Japan

caution

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.

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