【Prototype】 Exp. STF-14S & Exp. STF-15H
Functional Products
Electronics
Automotive
Packaging
Health Care
Color
Display
House Equipment / Infrastructure
Functional Materials
Solvent-based pressure sensitive adhesive / 2 component / Strong adhesion for thin layer
Features
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Strong adhesion without zipping for thin layer coating on polyolefin
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High tack and excellent stickability at room and low temperature
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STF-14S
Flexibility
Suitable for applications requied stress relaxation, adhesion for rough surface and adhesion at low temperature -
STF-15H
Balanced for cohesive power and flexibility
Suitable for applications requied holding power at high temperature and anti-repulsion
Performance
| Product name | Exp.STF-14S Flexibility, Stress relaxation resistance |
Exp.STF-15H Cohesion and Flexibility, Anti-repulsion |
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|---|---|---|---|---|---|---|---|---|---|---|
| Appearance | Light yellowish viscidity liquid | Light yellowish viscidity liquid | ||||||||
| Nonvolatile content (%) | 44.0-46.0 | 41.0-43.0 | ||||||||
| Viscosity (mPa・s @25℃) | 3,000-10,000 | 6,000-16,000 | ||||||||
| Solvent | Ethyl acetate | Ethyl acetate | ||||||||
| Hardener | D-40 | D-40 | ||||||||
| Hardener amount (Wet) | 1.2 | 1.2 | ||||||||
| Components | Thin layer Single side |
Thin layer Double-sided |
Normal layer Single side |
Normal layer Double-sided |
Thin layer Single side |
Thin layer Double-sided |
Normal layer Single side |
Normal layer Double-sided |
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| Peel strength (Single side) [N/25mm] (Double-sided) [N/20mm] |
SUS (Exfoliation) |
10 (AF) |
10 (AF) |
22 (CF) |
25 (CF) |
10 (AF) |
10 (AF) |
20 (AF) |
24(AF) | |
| PP (Exfoliation) |
8 (AF) |
9 (AF) |
16 (AF) |
16 (AF) |
9 (AF) |
10 (AF) |
15 (AF) |
16(AF) | ||
| Ball tack | ＜2 | ＜2 | 5 | 16 | ＜2 | ＜2 | 5 | 15 | ||
| Constant load holding power | SUS | 1h | － | 8mm | － | 5mm | － | 7mm | － | 2mm |
| 3h | － | 20mm | － | 11mm | － | 20mm | － | 3mm | ||
| PP | 1h | － | 13mm | － | 6mm | － | 14mm | － | 3mm | |
| 3h | － | 37mm | － | 11mm | － | 33mm | － | 8mm | ||
| Holding power | SUS | 70℃ 1kg | － | 24h＜ | 24h＜ | － | － | 24h＜ | 24h＜ | － |
Process conditions
Single side
- Processing method: Transfer method
- Composition(Thin layer single side): Coating substrate: Release PET Film(50μm)/ Paste substrate: PET Film(25μm)/ Coating amount: 2g/㎡(dry)
- Composition (Normal layer single side): Coating substrate: Release PET Film(50μm)/ Paste substrate: PET Film(25μm)/ Coating amount: 25g/㎡(dry)
- Drying condition: 80℃ x 3 minutes
- Aging condition: 40℃ x 3days
Double-sided
- Processing method: Transfer method
- Composition(Thin layer double-sided): Coating substrate: Release PET Film(50μm)/ Core substrate: PET Film(6μm)/ Coating amount: each 2g/㎡(ry)
- Composition(Normal layer double-sided): 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)
Measurement conditions
Peel strength:
- Adherends: SUS, PP, Test piece (Single side) 25mm width, (Double-sided) 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.
Holding power:
- Adherends: SUS, Lamination size (Single side) 25mm X 25mm, (Double-sided) 20mm X 20mm
- 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, Lamination size: 20mm X 50mm
- Measurement conditions: 23℃, 100g load, peel distance after 1h and 3h or note the time for drop
Ball tack:
- J. Dow Method (23℃, 50%RH)
Inquiry About This Product
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Inquiry on website
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