Pressure-sensitive cover tape

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

ParameterDescription
Product NameMild Self‑Adhesive Cover Tape / Self‑Adhesive Electronic Carrier Tape Cover Tape
Adhesive Edge Width1.2mm / 1.5mm
Total Cover Tape Width5.4mm / 9.1mm / 9.3mm / 13.3mm / 21.3mm / 25.5mm / 37.5mm / 49.5mm
SubstratePET (Polyester Film)
ColorTransparent
Adhesion CharacteristicsMild, stable, uniform adhesion
Anti‑Static PerformanceSurface resistance 10⁶ – 10⁹ Ω
Application MethodPressure‑sensitive self‑adhesive at room temperature (no heat required)
Adhesive Layer PropertiesNo bleed, no break, no residue
Reel LengthCustomizable (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 WidthAdhesive Edge WidthCompatible Carrier Tape WidthGlue‑Free Zone Width
5.4mm1.2mm8mm3.0mm
9.1mm1.2mm12mm6.7mm
9.3mm1.2mm12mm6.9mm
13.3mm1.2mm16mm10.9mm
21.3mm1.5mm24mm18.3mm
25.5mm1.5mm32mm22.5mm
37.5mm1.5mm44mm34.5mm
49.5mm1.5mm56mm46.5mm

Technical Data Sheet

ParameterSpecification
SubstratePET (Polyester Film)
ColorTransparent
Thickness0.06 – 0.08 mm
Adhesive Edge Width1.2 mm / 1.5 mm ± 0.1 mm
Adhesive Edge PositionBoth edges of the cover tape
Total Width Tolerance±0.15 mm
Peel Force15 – 40 gf (mild type, customizable)
Peel Force StabilityFluctuation across reel ≤ ±5 gf
Surface Resistance10⁶ – 10⁹ Ω
Anti‑Static TypePermanent anti‑static (masterbatch added)
Application TemperatureRoom temperature (10‑40℃)
Application Pressure2‑4 kg/cm²
Holding Adhesion≥ 24 hours (25℃, 1kg load)
Adhesive ResidueNone
Adhesive BleedNone
Adhesive BreakNone
Shelf Life12 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 WidthAdhesive Edge WidthCompatible Carrier Tape WidthTypical Reel LengthComponent Types
15.4mm1.2mm8mm300‑500m0402/0603/0805, SOT‑23
29.1mm1.2mm12mm300‑500mSmall ICs, LEDs
39.3mm1.2mm12mm300‑500mSmall ICs, LEDs (common)
413.3mm1.2mm16mm200‑400mSOP‑8, crystal oscillators, sensors
521.3mm1.5mm24mm200‑300mSOP‑16, connectors
625.5mm1.5mm32mm150‑300mQFP‑32/44, QFN
737.5mm1.5mm44mm100‑200mLarge ICs, BGA, MCU
849.5mm1.5mm56mm100‑150mPower modules, large connectors

Adhesive Edge Selection Guide (1.2mm vs 1.5mm)

Comparison1.2mm Edge1.5mm Edge
Compatible Carrier Tape Width8mm / 12mm / 16mm24mm / 32mm / 44mm / 56mm
Adhesive WidthNarrowerSlightly wider
Sealing StrengthModerateSlightly stronger
Suitable Component SizeSmall componentsMedium / large components
Recommended ApplicationsLEDs, resistors, capacitors, small ICsQFP, 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 CharacteristicStandardInspection Method
No adhesive bleedClean, well‑defined adhesive edgesVisual under 50x magnifier
No adhesive breakContinuous adhesive layer, no gapsIn‑line coating inspection
No residueNo adhesive left on carrier tape after peelingTape test / Microscope inspection
Uniform adhesive thicknessConsistent thicknessThickness 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 WidthRecommended Pressure
8‑16mm2‑3 kg/cm²
24‑44mm3‑4 kg/cm²
56mm and above4 kg/cm²

Usage Precautions

  1. Storage Conditions: Store in a cool, dry place (15‑30℃, 40‑70% RH), away from direct sunlight, high temperature, and high humidity.
  2. Moisture Protection: After opening, it is recommended to use the entire reel at once. If not fully used, reseal for moisture protection.
  3. ESD Protection: Ensure equipment is properly grounded during use.
  4. Avoid Contamination: Keep the cover tape surface and adhesive edges away from oil, dust, and other contaminants that may affect adhesion.
  5. Shelf Life: Use within 12 months of unopened original packaging. After expiry, re‑validate adhesion.
  6. 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)

SpecificationCharacteristicRecommended Scenario
9.1mmSlightly narrower adhesive spacingConventional 12mm carrier tape
9.3mmSlightly wider spacing, strong versatilityMost 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 ItemOptions
Cover Tape WidthAny width from 4mm to 80mm
Adhesive Edge WidthAdjustable from 0.8mm to 2.5mm
Peel ForceCustomizable from 10 to 80 gf
Reel Length100m / 200m / 300m / 480m / 500m / 800m
Substrate Thickness0.05mm – 0.10mm
Anti‑Static Level10⁶‑10⁹Ω / 10⁴‑10⁶Ω / Non‑anti‑static
ColorTransparent / 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?

AdvantageDescription
🛡️ Adhesive Edge Protection1.2/1.5mm edge design – component never contacts adhesive
🎯 Stable AdhesionUniform peel force across reel – fluctuation ≤ ±5gf
🚫 No Adhesive BleedPrecision coating – clean, sharp adhesive edges
🔗 No Adhesive BreakContinuous coating without gaps – consistent quality
⚡ Anti‑StaticSurface resistance 10⁶‑10⁹Ω – ESD protection
🔍 High TransparencyComponents visible – easy quality inspection
❄️ Room‑Temperature ApplicationNo heating required – saves equipment cost
📏 Full Size Range8 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.