



3M
8403
Polyester Composite Bonding and Silicone Splicing
A 2.3 mil. polyester film tape with a silicone adhesive for composite bonding and splicing of many silicone coated release papers. Not recommended to exceed one year from date of manufacture when stored under normal conditions at 70°F and 50% R.H. Tape is useful in many applications where clean removal is necessary, where the surface contains silicone and/ or where extended high temperatures resistance is desired.
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 |
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Adhesive | Silicone |
Thickness | 2.3 Mils |
Tensile | 44.00 lbs/in |
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Elongation | 150.00% |
Adhesive Activation | Pressure |
Adhesion (unwind) | 27 oz/in |
Min. Application Temp | 40° F |
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Min. Service Temp | -60° F |
Max Short-Term Temp | 400° F |
Max Long-Term Temp |
Product Features
- Silicone adhesive with a green pigment
- Color is translucent green
- Polyester film is abrasion, chemical and thermal resistant
- Polyester film also retains flexibility from -60°F to 400°F
- Silicone adhesive has higher heat resistance than acrylic adhesive
- Silicone adhesive is also chemical resistant
- Reduces failures due to backing deterioration
- Reduces failures due to cracking
- Reduces failures due to softening, oozing, adhesive transfer and high temperature splice slippage
- Reduces failures due to undercutting
Adhesive Tape Applications
- Masking edges of overlap seams in metal bonding process where excess epoxy ("flash") flows onto tape
- Clean up is complete upon tape removal
- Protective overall mask on panels subject to mild caustic or acid bath etching
- Prevents scratches during handling and provides desired masking during metal bonding and fabrication
- Holding parts or vacuum bags during bonding process
Adhesive Tape Colors
- Green
Comparable Products
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.