



3M
44
Polyester Web-Reinforced Film
A 5.5 mil. electrical tape consisting of polyester film backing and thermosetting rubber adhesive primarily used for stick-wound coils/ transformers and in bobbin-wound coils. For maximum solvent resistance and holding properties, the tape should be thermoset at: 1hour for 300°F/ 2hours for 275°F or 3hours for 250°F.
Backing/Carrier | PET - Polyester |
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Adhesive | Rubber |
Thickness | 5.5 Mils |
Tensile | 40.00 lbs/in |
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Elongation | 50.00% |
Adhesive Activation | Pressure |
Adhesion (unwind) | 65 oz/in |
Min. Application Temp | 40° F |
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Min. Service Temp | 0° F |
Max Short-Term Temp | 266° F |
Max Long-Term Temp |
Product Features
- Polyester film backing
- Thermosetting, pressure-sensitive rubber adhesive
- Puncture resistance: 12lbs.
- Excellent electrical properties
- Class B- 300°F
- CTI material group: 1
- Puncture resistant
- Conformable
- Solvent resistant
- Good holding properties
Adhesive Tape Applications
- Stick-wound coils/ transformers
- Bobbin-wound coils
- Banding
- Anchoring
- Insulating
- Protective start wires
- Leads
- Terminal strips
- Insulation paper
- End turns
- Connections in motors and transformers
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.
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.