Film-Based Double-Coated Adhesive Tape

Zhejiang Zhuolv New Materials Co., Ltd. is one of the leading manufacturers and suppliers of film-based double-coated adhesive tape in China, also supports customized service. If you're going to buy bulk durable film-based double-coated adhesive tape, welcome to get pricelist and free sample from our factory. Quality products and reasonable price are available.

Film-Based Double-Coated Adhesive Tape uses a thin film carrier coated with pressure-sensitive adhesive on both sides and protected by a release liner. The structure provides controlled thickness and dimensional support for permanent sealing, film bonding and flexible packaging conversion. PET film is a common carrier where stable handling and accurate tape construction are required.

Product Construction
PET Film Carrier
A PET carrier provides dimensional support during coating, slitting and application. Typical carrier thickness is 12–25 μm.
Double-Sided Adhesive
Pressure-sensitive adhesive is coated on both sides of the carrier. Acrylic and hot melt systems are available for different substrate and processing requirements.
Release Liner
Glassine paper or PET film protects the adhesive before use. Liner selection can follow the required release, stiffness and converting method.

Product Advantages
Controlled Gauge
The film carrier and adhesive layers form a defined tape construction, helping maintain consistent bonding thickness across the application area.
Stable Processing
The carrier supports clean slitting, rewinding and handling, particularly when narrow strips are required for packaging conversion.
Permanent Bonding
The two adhesive surfaces provide a continuous bonding interface for closure and assembly applications intended for permanent attachment.
Thin Profile
A film-based construction provides a relatively thin bonding layer for applications where additional material thickness needs to be controlled.

Typical Specifications

Adhesive Selection
Acrylic Adhesive
Acrylic systems are suitable for applications requiring stable adhesion on compatible film surfaces and consistent bonding during storage and use.
Hot Melt Adhesive
Hot melt systems provide a practical option where high initial tack and fast bonding are important during packaging conversion.
Coating Weight
Adhesive coating thickness affects total gauge, tack and bonding behavior. The coating level should be matched to the substrate and required bond area.

Substrate Compatibility
PE and PP Films
Polyolefin films should be evaluated according to film grade, surface energy and treatment condition before adhesive selection.
OPP and BOPP
Compatible oriented polypropylene films can be considered for bag closure, film joining and flexible packaging structures.
PET Films
PET provides a stable film surface for tape bonding and is suitable for film-to-film and laminated constructions.
Laminated Films
The adhesive should be selected against the actual outer bonding layer rather than the laminate name alone.

Typical Applications
Courier Bags
Applied to permanent closure areas where the tape bonds the film layers after the package is closed.
Mailing Bags
Used as a continuous sealing strip for selected polyethylene and polypropylene bag constructions.
Bubble Bags
Suitable for closure flaps and defined bonding areas where a thin permanent adhesive layer is required.
Flexible Packaging
Used for film bonding, closure and selected converting processes where the tape construction can be incorporated into the package design.

Application Conditions
Surface Preparation
Surfaces should be dry and free from dust, oil and processing residue before application.
Application Pressure
Firm pressure helps establish contact between the adhesive and substrate across the complete bonding area.
Application Temperature
The actual processing temperature should be considered when the tape is applied in cold or heated production environments.
Dwell Time
Bond development should be evaluated on the actual substrate combination before production release.

Converting Options
Slitting
Master rolls can be converted into narrow widths for defined sealing areas and application processes.
Rewinding
Core size, roll diameter and winding direction can be specified according to the required roll format.
Die Cutting
The film-based structure can be converted into strips, tabs and shaped adhesive pieces for specific packaging designs.
Roll Format
Finished roll dimensions can be matched to the available application process and material handling requirements.

Quality Control
Coating Thickness
Adhesive coating is checked against the specified coating level to maintain consistent tape construction.
Carrier Thickness
Film thickness is controlled as part of the finished structure and checked against the agreed specification.
Adhesion Testing
Peel adhesion can be tested on defined substrates using an agreed test method and test condition.
Roll Inspection
Finished rolls are checked for width, winding condition, edge quality, splice condition and overall dimensional conformity.

Custom Specification
Tape Width
Width can be specified according to the sealing area, application method and converting process.
Total Thickness
Carrier and adhesive thickness can be selected to achieve the required finished tape gauge.
Adhesive System
Acrylic or hot melt adhesive can be specified according to substrate characteristics and bonding requirements.
Liner Structure
Liner material, thickness and release characteristics can be selected for manual handling or automated application.

FAQ
What is the typical carrier material?
PET film is a common carrier for this construction because it provides dimensional support during coating, slitting and application.
Can the tape be used on PE and PP films?
Yes. PE and PP films can be considered after checking the film surface, treatment condition and adhesive compatibility.
What total thickness is available?
A typical construction is 72–125 μm without the release liner, depending on carrier and adhesive coating thickness.
Which adhesive systems can be specified?
Acrylic and hot melt pressure-sensitive adhesive systems can be selected according to substrate and application requirements.
Can the tape width and roll length be customized?
Yes. Width, roll length, core size and winding format can be specified for the intended converting or application process.
What information is required for specification?
The key details are substrate type, bonding area, tape width, total thickness, adhesive system, roll length, application method and required bonding performance.