3M
8991
Polyester Tape
3M™ Polyester Tape 8991 is a blue polyester tape with a silicone adhesive. It can be used in a large variety of high temperature applications including powdercoat masking, flashbreaker, and bag sealing applications. Additional applications include, splicing, tabbing, or roll closing silicone treated liners or materials. 8991 is an alternative to 3M 8951 (Discontinued)
| Backing/Carrier | PET - Polyester |
|---|---|
| Adhesive | Silicone |
| Thickness | 2.4 Mils |
| Tensile | 29.00 lbs/in |
|---|---|
| Elongation | 100.00% |
| Adhesive Activation | Pressure |
| Adhesion (unwind) | 31 oz/in |
| Min. Application Temp | |
|---|---|
| Min. Service Temp | |
| Max Short-Term Temp | |
| Max Long-Term Temp |
Product Features
- Polyester films offer excellent thermal, abrasion, and chemical resistance while maintaining their flexibility
- Blue color makes tape placement obvious for both application and removal
- Thin backing leaves a sharp paint line and some conformability
- Silicone adhesives offer high heat resistance compared to many rubber and acrylic adhesives, reducing failure due to softening, oozing, and adhesive transfer
- Silicone adhesives adhere well to tough-to-stick-to surfaces like silicone liners and fixtures coated with mold release
- Silicone adhesives adhere well to tough-to-stick-to surfaces like silicone liners and fixtures coated with mold release
- Linered version available for die-cuts
- Alternative to 3M 8951 (Discontinued)
Markets Served
- Industrial
- Aerospace
- Commercial printing
- Signage, Banners, & Printing
- Medical Device
Adhesive Tape Applications
- Powdercoat masking
- High temperature applications
- Flashbreaker and bag sealing
- Splicing
- Tabbing
- Roll closing silicone treated liners or materials
Adhesive Tape Colors
- Blue
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.