Budnick Converting ®
3M
668EG
***Discontinued*** Thermo-Bond Film
Discontinued A 2.5 mil. flexible, light colored, thermoplastic adhesive bonding film that exibits good adhesion to a variety of substrates. The bonding film is removable from the release coated paper carrier. The type of application equipment used to bond 3M™ thermo-bond film tape will depend on the application involved and on the type of equipment available to the user. Thin films and flexible substrates can be bonded using a heated roll laminator where heat and pressure can be varied to suit the application. Larger, thicker substrates can be bonded using a heated static press or, in some cases, an autoclave. For applications where a shaped adhesive is to be transferred to a flat of three-dimensional part, a hot shoe or thermode method may be appropriate. See 3M data sheet for Directions for Use and Typical Methods for Bonding 3M™ Thermo-Bond Film Adhesives charts.
Converting Services
- Precision Cutting
- Die Cutting
- Slitting
- Printing
- Laminating and Coating
- Spooling and Finishing
- Consulting & Process Audit
- Prototyping
- Inventory Management
At Budnick, we specialize in custom converting these materials into labor saving, user-friendly parts.
| Backing/Carrier | PET - Polyester |
|---|---|
| Adhesive | Acrylic |
| Thickness | 2.5 Mils |
| Tensile | 2400.00 lbs/in |
|---|---|
| Elongation | 1000.00% |
| Adhesion (liner) | 336 oz/in |
| Adhesion (unwind) | 336 oz/in |
| Min. Application Temp | 50° F |
|---|---|
| Min. Service Temp | 0° F |
| Max Short-Term Temp | 260° F |
| Max Long-Term Temp |
Product Features
- Thermoplastic polyester (non-curing) backing
- 2.5 mil. thermoplastic acrylic adhesive
- Slight surface tack for temporary holding
- Suitable for kiss or through die cutting
- Specific gravity: 1.00
- Solids: 100%
- Ball and ring softening range: 300°F to 320°F
- 90° peel adhesion to cold rolled steel: 324 oz./in.
- 90° peel adhesion to aluminum: 168 oz./in.
- 90° peel adhesion to polycarbonate: 216 oz./in.
- 90° peel adhesion to acrylic: 288 oz./in.
- Dielectric constant: 3.3 at 1 kilohertz
- Dissipation factor: 0.035 at 10 kilohertz; 0.030 at 500 kilohertz; 0.030 at 1000 kilohertz
- Volume resistivity: 5.6 x 10 the the 13th power ohm-cm
- Excellent adhesion to many substrates
- Bonding film is removable from carrier
- Excellent heat resistance
- Quick fixturing/ holding strength
- Solvent-free
Adhesive Tape Applications
- Bonds thin films and flexible substrates with a heated roll laminator
- Bonds thicker substrates with a heated static press
- Transfers shaped adhesives
Adhesive Tape Colors
- Clear
- Tan
Data provided by Budnick Converting, Inc.
The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.
It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.
Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.
Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.