



Here’s the English translation of the Mild Self‑Adhesive Cover Tape with Adhesive Edges (1.2mm / 1.5mm) product description.
Title: Mild Self‑Adhesive Cover Tape with Adhesive Edges (1.2mm / 1.5mm) | Electronic Carrier Tape Cover Tape
Specifications: 5.4mm / 9.1mm / 9.3mm / 13.3mm / 21.3mm / 25.5mm / 37.5mm / 49.5mm | Stable adhesion | Anti‑static | Transparent | No adhesive bleed, no adhesive break
Product Name: Mild Self‑Adhesive Cover Tape with Adhesive Edges (1.2mm / 1.5mm) | Electronic Carrier Tape Cover Tape
Product Overview
This product is a mild self‑adhesive cover tape specially designed for electronic component carrier tape packaging. Made of high‑quality transparent PET substrate with adhesive edge widths of 1.2mm or 1.5mm, it offers stable adhesion, excellent anti‑static properties, and high transparency. Suitable for SMT carrier tape sealing of IC chips, LEDs, crystal oscillators, sensors, connectors, and other electronic components – no heating required, it can be applied by pressure at room temperature. Especially ideal for heat‑sensitive components and manual / semi‑automatic packaging lines. The adhesive edge design ensures that the adhesive is only present along the two edges of the carrier tape, leaving a glue‑free zone in the middle, preventing adhesive contact with components and leaving no residue upon peeling.
Key Specifications
| Parameter | Description |
|---|---|
| Product Name | Mild Self‑Adhesive Cover Tape / Self‑Adhesive Electronic Carrier Tape Cover Tape |
| Adhesive Edge Width | 1.2mm / 1.5mm |
| Total Cover Tape Width | 5.4mm / 9.1mm / 9.3mm / 13.3mm / 21.3mm / 25.5mm / 37.5mm / 49.5mm |
| Substrate | PET (Polyester Film) |
| Color | Transparent |
| Adhesion Characteristics | Mild, stable, uniform adhesion |
| Anti‑Static Performance | Surface resistance 10⁶ – 10⁹ Ω |
| Application Method | Pressure‑sensitive self‑adhesive at room temperature (no heat required) |
| Adhesive Layer Properties | No bleed, no break, no residue |
| Reel Length | Customizable (200m / 300m / 480m / 500m, etc.) |
Applications
- IC Chip Packaging: SOP, SSOP, QFP, QFN, etc.
- LED Packaging: SMD LED, COB LED
- Passive Components: Capacitors, resistors, inductors
- Discrete Devices: Diodes, transistors, crystal oscillators, sensors
- Connectors / Relays: Precision connectors, relays
- Heat‑Sensitive Components: Temperature‑sensitive electronic components (no heating required)
- Manual / Semi‑Automatic Packaging Lines: Small‑batch, high‑mix production
Product Advantages
1. Adhesive Edge Design – Component Protection
- Adhesive is applied only along the two edges of the cover tape (1.2mm or 1.5mm)
- The center is a glue‑free zone where the component sits
- When peeling, the adhesive does not contact the component – no damage to component surface or leads
2. Mild Adhesion – Stable Peel Force
- Moderate tack (low / slight tack) – easy to peel
- Uniform and consistent peel force – no fluctuations
- Ensures the cover tape stays sealed during transport while allowing smooth peeling on the machine
3. No Adhesive Bleed, No Adhesive Break
- Precision coating process – clean, well‑defined adhesive edges
- No adhesive overflow that could contaminate the cover tape surface or components
- No adhesive break or separation during long‑term storage or transport
4. Anti‑Static Performance
- Surface resistance 10⁶ – 10⁹ Ω
- Effectively dissipates static charge – protects sensitive electronic components
- Suitable for cleanrooms and ESD‑protected environments
5. Transparent Design – Easy Inspection
- High transparency – component status visible at a glance
- Visual inspection possible without peeling the cover tape
- Compatible with AOI (Automated Optical Inspection) systems
6. Room‑Temperature Application – No Heating Required
- Pressure‑sensitive self‑adhesive – applied at room temperature
- Reduces equipment cost (no heat sealing equipment needed)
- Suitable for packaging heat‑sensitive components
7. Multiple Widths – Full Coverage
| Cover Tape Width | Adhesive Edge Width | Compatible Carrier Tape Width | Glue‑Free Zone Width |
|---|---|---|---|
| 5.4mm | 1.2mm | 8mm | 3.0mm |
| 9.1mm | 1.2mm | 12mm | 6.7mm |
| 9.3mm | 1.2mm | 12mm | 6.9mm |
| 13.3mm | 1.2mm | 16mm | 10.9mm |
| 21.3mm | 1.5mm | 24mm | 18.3mm |
| 25.5mm | 1.5mm | 32mm | 22.5mm |
| 37.5mm | 1.5mm | 44mm | 34.5mm |
| 49.5mm | 1.5mm | 56mm | 46.5mm |
Technical Data Sheet
| Parameter | Specification |
|---|---|
| Substrate | PET (Polyester Film) |
| Color | Transparent |
| Thickness | 0.06 – 0.08 mm |
| Adhesive Edge Width | 1.2 mm / 1.5 mm ± 0.1 mm |
| Adhesive Edge Position | Both edges of the cover tape |
| Total Width Tolerance | ±0.15 mm |
| Peel Force | 15 – 40 gf (mild type, customizable) |
| Peel Force Stability | Fluctuation across reel ≤ ±5 gf |
| Surface Resistance | 10⁶ – 10⁹ Ω |
| Anti‑Static Type | Permanent anti‑static (masterbatch added) |
| Application Temperature | Room temperature (10‑40℃) |
| Application Pressure | 2‑4 kg/cm² |
| Holding Adhesion | ≥ 24 hours (25℃, 1kg load) |
| Adhesive Residue | None |
| Adhesive Bleed | None |
| Adhesive Break | None |
| Shelf Life | 12 months (unopened original packaging, 25℃/50% RH) |
Product Structure Diagram
Cover tape width (5.4 ~ 49.5mm)
┌──────────────────────────────────────┐
│ │
│ ██████████░░░░░░░░░░░░░░░░██████████│
│ Edge 1.2/1.5│ Glue‑free zone │Edge 1.2/1.5 │
│ ██████████░░░░░░░░░░░░░░░░██████████│
│ │
└──────────────────────────────────────┘
↑ ↑
Adhesive edge 1.2/1.5 Adhesive edge 1.2/1.5
Component sits above glue‑free zone; adhesive does not contact component during peeling
┌────────────────────────────────────┐
│ ████ ←edge Component → ████ ←edge │
│ ████ ████ │
└────────────────────────────────────┘
┌────────────────────────────────────┐
│ Carrier tape │
└────────────────────────────────────┘
Width Specification Reference Table
| No. | Cover Tape Width | Adhesive Edge Width | Compatible Carrier Tape Width | Typical Reel Length | Component Types |
|---|---|---|---|---|---|
| 1 | 5.4mm | 1.2mm | 8mm | 300‑500m | 0402/0603/0805, SOT‑23 |
| 2 | 9.1mm | 1.2mm | 12mm | 300‑500m | Small ICs, LEDs |
| 3 | 9.3mm | 1.2mm | 12mm | 300‑500m | Small ICs, LEDs (common) |
| 4 | 13.3mm | 1.2mm | 16mm | 200‑400m | SOP‑8, crystal oscillators, sensors |
| 5 | 21.3mm | 1.5mm | 24mm | 200‑300m | SOP‑16, connectors |
| 6 | 25.5mm | 1.5mm | 32mm | 150‑300m | QFP‑32/44, QFN |
| 7 | 37.5mm | 1.5mm | 44mm | 100‑200m | Large ICs, BGA, MCU |
| 8 | 49.5mm | 1.5mm | 56mm | 100‑150m | Power modules, large connectors |
Adhesive Edge Selection Guide (1.2mm vs 1.5mm)
| Comparison | 1.2mm Edge | 1.5mm Edge |
|---|---|---|
| Compatible Carrier Tape Width | 8mm / 12mm / 16mm | 24mm / 32mm / 44mm / 56mm |
| Adhesive Width | Narrower | Slightly wider |
| Sealing Strength | Moderate | Slightly stronger |
| Suitable Component Size | Small components | Medium / large components |
| Recommended Applications | LEDs, resistors, capacitors, small ICs | QFP, BGA, connectors, modules |
Peel Force Stability Diagram
Peel force test curve (full reel)
┌─────────────────────────────────────┐
│ 40 ┤ │
│ 30 ┤ ████████████████████████████ │ Target: 25gf
│ 20 ┤ ████████████████████████████ │ Fluctuation: ±5gf
│ 10 ┤ │
│ 0 └──────────────────────────────→ │
│ Start Middle End │
└─────────────────────────────────────┘
✓ Uniform and stable peel force across the entire reel
✓ No excessively high or low adhesion at start
✓ No adhesion decay at the end
No Adhesive Bleed, No Adhesive Break Guarantee
| Quality Characteristic | Standard | Inspection Method |
|---|---|---|
| No adhesive bleed | Clean, well‑defined adhesive edges | Visual under 50x magnifier |
| No adhesive break | Continuous adhesive layer, no gaps | In‑line coating inspection |
| No residue | No adhesive left on carrier tape after peeling | Tape test / Microscope inspection |
| Uniform adhesive thickness | Consistent thickness | Thickness gauge / Optical thickness meter |
Usage Instructions
1. Application Method:
- Align the cover tape with the carrier tape (adhesive edges aligned with the two edges of the carrier tape)
- Apply pressure of 2‑4 kg/cm² using a pressure roller or laminator
- Apply at room temperature – no heating required
2. Peeling Method:
- Normal peeling by SMT cover tape peeling mechanism
- For manual peeling, peel at 180° angle uniformly
3. Recommended Application Pressure:
| Carrier Tape Width | Recommended Pressure |
|---|---|
| 8‑16mm | 2‑3 kg/cm² |
| 24‑44mm | 3‑4 kg/cm² |
| 56mm and above | 4 kg/cm² |
Usage Precautions
- Storage Conditions: Store in a cool, dry place (15‑30℃, 40‑70% RH), away from direct sunlight, high temperature, and high humidity.
- Moisture Protection: After opening, it is recommended to use the entire reel at once. If not fully used, reseal for moisture protection.
- ESD Protection: Ensure equipment is properly grounded during use.
- Avoid Contamination: Keep the cover tape surface and adhesive edges away from oil, dust, and other contaminants that may affect adhesion.
- Shelf Life: Use within 12 months of unopened original packaging. After expiry, re‑validate adhesion.
- Temperature Effect: Adhesion may decrease at low temperatures (<10℃). Allow to return to room temperature before use.
Packaging Method
- Winding: Customer‑specified length per reel (100m, 200m, 300m, 480m, 500m, etc.)
- Reel Size: Standard plastic reel (7‑inch or 10‑inch) compatible with cover tape width
- Inner Packaging: Anti‑static aluminum foil bag, vacuum or heat‑sealed
- Outer Packaging: High‑strength corrugated carton
- Labeling: Each reel/carton marked with width, adhesive edge width, length, lot number, peel force range
Width Selection Advice (9.1mm vs 9.3mm)
| Specification | Characteristic | Recommended Scenario |
|---|---|---|
| 9.1mm | Slightly narrower adhesive spacing | Conventional 12mm carrier tape |
| 9.3mm | Slightly wider spacing, strong versatility | Most common standard for 12mm carrier tape |
Both are compatible with 12mm carrier tape. 9.3mm is the industry standard – recommended as the first choice.
Customization Services
| Customization Item | Options |
|---|---|
| Cover Tape Width | Any width from 4mm to 80mm |
| Adhesive Edge Width | Adjustable from 0.8mm to 2.5mm |
| Peel Force | Customizable from 10 to 80 gf |
| Reel Length | 100m / 200m / 300m / 480m / 500m / 800m |
| Substrate Thickness | 0.05mm – 0.10mm |
| Anti‑Static Level | 10⁶‑10⁹Ω / 10⁴‑10⁶Ω / Non‑anti‑static |
| Color | Transparent / Semi‑transparent / Brown |
Quality Assurance
✓ Peel force test report provided with each batch (measured at beginning, middle, and end of reel)
✓ Adhesive edge width inspection report provided with each batch
✓ Surface resistance test report provided with each batch
✓ Adhesive bleed / break inspection record available
✓ Compliant with RoHS, REACH, Halogen‑free environmental standards
✓ Third‑party testing can be arranged upon request
Why Choose Our Mild Self‑Adhesive Cover Tape?
| Advantage | Description |
|---|---|
| 🛡️ Adhesive Edge Protection | 1.2/1.5mm edge design – component never contacts adhesive |
| 🎯 Stable Adhesion | Uniform peel force across reel – fluctuation ≤ ±5gf |
| 🚫 No Adhesive Bleed | Precision coating – clean, sharp adhesive edges |
| 🔗 No Adhesive Break | Continuous coating without gaps – consistent quality |
| ⚡ Anti‑Static | Surface resistance 10⁶‑10⁹Ω – ESD protection |
| 🔍 High Transparency | Components visible – easy quality inspection |
| ❄️ Room‑Temperature Application | No heating required – saves equipment cost |
| 📏 Full Size Range | 8 widths – compatible with 8‑56mm carrier tapes |
Contact Information (Example)
For sample testing, adhesion tuning, or bulk purchasing, please contact us for a quotation and more technical documentation.