Benefits
- Reliable bonding: Provides strong adhesion on various substrates, including selected plastics, metals and glass.
- Thin construction: The 100 μm thickness is suitable for applications with limited available space.
- Versatile material bonding: Can be used for foam and felt lamination and component mounting.
- Good environmental resistance: Offers very good humidity and UV ageing resistance under suitable conditions.
- Efficient converting: Suitable for further processing, including slitting and other converting operations.
- High initial tack: Helps support efficient positioning and bonding during assembly.
Technical Specifications
| Item | Specification |
|---|---|
| Product | Tesa 68644 |
| Product Type | Double-sided non-woven tape |
| Adhesive Type | Tackified acrylic |
| Backing Material | Non-woven |
| Tape Color | Translucent |
| Liner Type | Glassine |
| Liner Color | Brown |
| Liner Thickness | 71 μm |
| Total Thickness | 100 μm |
| Tack | Very good |
| Static Shear Resistance at 23°C | Good |
| Chemical Resistance | Good |
| Humidity Resistance | Very good |
| UV Ageing Resistance | Very good |
| Softener Resistance | Medium |
| Short-Term Temperature Resistance | 200°C |
| Long-Term Temperature Resistance | 80°C |
Typical Adhesion Values
| Substrate | Initial Adhesion | After 14 Days |
|---|---|---|
| ABS | 6.7 N/cm | 8.2 N/cm |
| Glass | 7.7 N/cm | 9.8 N/cm |
| Polycarbonate (PC) | 8.3 N/cm | 10.0 N/cm |
| Polyethylene (PE) | 3.4 N/cm | 3.8 N/cm |
| Steel | 8.1 N/cm | 9.4 N/cm |
Technical note: The values above are representative or typical values and should not be used as product specifications. Actual performance depends on the substrate, surface condition, application method and environmental conditions.
Applications
1. Electronic Component Assembly
- Mounting components inside electronic devices
- Fixing selected internal parts
- Bonding plastic and metal components
- Thin-layer mounting applications
2. Nameplate Mounting
- Nameplate attachment
- Label and identification plate mounting
- Sign and component fixation
- Industrial equipment identification
3. Foam and Felt Lamination
- Foam-to-substrate lamination
- Felt bonding
- Foam component assembly
- Cushioning and interior component bonding
4. Industrial Converting
- Custom slitting
- Roll-to-roll lamination
- Die-cut adhesive components
- Customized tape formats
Application suitability should be evaluated according to the substrate, bonding area, load and operating environment.
Compatible Materials
Based on the available product information and typical adhesion data, tesa® 68644 may be evaluated for use with:
Plastics
- ABS
- Polycarbonate (PC)
- Polyethylene (PE)
- Selected plastic components
Metals
- Steel
- Selected metal components
Other Materials
- Glass
- Foam materials
- Felt
- Nameplate materials
Important: PE is a low-surface-energy material. Although adhesion data is available for PE, actual bonding performance should be validated under the customer’s specific application conditions.
Industries
- Electronics and electrical equipment
- Consumer electronics
- Industrial equipment
- Automotive components
- Furniture and interior components
- Foam and felt converting
- Signage and nameplate manufacturing
- General industrial assembly
The suitability of tesa 68644 should be confirmed through application testing before use in critical or long-term bonding applications.
Why Choose tesa 68644?
Tesa 68644 combines a thin non-woven backing, tackified acrylic adhesive and good converting properties for a variety of industrial bonding applications.
With experience in adhesive tape slitting, laminating and precision die-cutting, Yousan New Materials can support customized tape formats and converted adhesive components, subject to product availability, technical evaluation and customer requirements.
Potential converting services include:
- Custom roll slitting
- Adhesive tape laminating
- Kiss cutting
- Precision die-cutting
- Customized shapes and sizes
- Component-level adhesive solutions
Yousan is not implying official authorization or direct affiliation with tesa unless separately confirmed.
Installation Guide
1. Surface Preparation
- Ensure the bonding surfaces are clean, dry and free from dust, oil and release agents.
- Remove loose particles and contaminants.
- Check whether the substrate requires special surface treatment.
2. Application
- Cut the tape to the required size.
- Apply the tape evenly to one substrate.
- Avoid wrinkles, air pockets and contamination.
- Remove the liner carefully.
- Position the second substrate accurately.
3. Pressure Application
- Apply uniform pressure across the bonding area.
- Ensure sufficient contact between the adhesive and substrate.
- Avoid excessive tension during application.
4. Bonding Evaluation
- Allow adequate dwell time before applying significant loads.
- Evaluate peel adhesion, shear resistance and environmental durability.
- Conduct application-specific testing before mass production.
Storage
For best results:
- Store the tape in its original packaging.
- Keep it in a clean and dry environment.
- Protect it from direct sunlight and contamination.
- Avoid excessive heat and humidity.
- Follow the latest tesa storage recommendations and product documentation.
Storage conditions and shelf life should be confirmed using the applicable product documentation.
FAQ
1. What type of tape is tesa 68644?
Tesa 68644 is a 100 μm double-sided translucent non-woven tape with a tackified acrylic adhesive.
2. What is the total thickness of tesa 68644?
The total tape thickness is 100 μm, excluding the liner.
3. What is the liner material?
The product uses a brown glassine liner with a typical thickness of 71 μm.
4. Is tesa 68644 suitable for electronics?
Yes. Its official application fields include mounting and assembly of components into electronic devices. Application testing is recommended for specific electronic assemblies.
5. Can tesa 68644 bond foam and felt?
Yes. Foam and felt lamination are listed among the product’s application fields.
6. What is the temperature resistance of tesa 68644?
The listed typical temperature resistance is:
- Short term: up to 200°C
- Long term: up to 80°C
These values should not be interpreted as guaranteed performance for every application.
7. Can tesa 68644 be die-cut?
The product is described as having good converting properties. Die-cutting feasibility depends on the design, liner, dimensions and processing requirements.
8. Can tesa 68644 bond PE?
The published data includes adhesion values on PE. However, PE bonding performance depends on the specific PE formulation, surface condition and application requirements. Testing is recommended.
9. Does Yousan provide custom converting?
Yousan can review requirements for slitting, laminating and precision die-cutting, subject to technical evaluation and material availability.
10. Is tesa 68644 suitable for permanent bonding?
It may be considered for selected mounting and lamination applications. Suitability for permanent bonding must be confirmed through application-specific testing.
Downloads
Available upon request:
- Tesa 68644 Technical Data Sheet (TDS)
- Safety Data Sheet (SDS)
- Product Brochure
- Precision Die-Cutting Capability Guide
Please contact our sales team if you require the latest technical documentation.
