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3M™ Polyester Tape 8402

3M ID 70006117389UPC 50021200056876
  • Green, 0.9 mil polyester backing
  • Removes cleanly and remains flexible after 3 hours in autoclave, flash breaker tape, mask for acid and caustic bath
  • Thin, high tear resistance, good temperature resistance, long-term aging, high strength backing
  • Electronics, Automotive, Aerospace, General Industrial, Web Processing, Solar, Composites, Military, Appliance, Transportation
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Specifications
Attribute Name
Value
Adhesive Type
Silicone
Applications
High Temperature Masking
Elongation at Break
125 Percent
Industries
Appliance, Automotive, Construction, Electronics, General Industrial, Military and Government, Print, Specialty Vehicle, Transportation
Maximum Operating Temperature (Celsius)
218 Degree Celsius
Overall Length (Metric)
66 m
Overall Width (Metric)
25,4 mm
Product Colour
Green
Product Key
8402
Tensile Strength (metric)
434 N/100mm
Total Tape Thickness without Liner (metric)
0,05 Millimetre
Product Details
  • Green, 0.9 mil polyester backing
  • Removes cleanly and remains flexible after 3 hours in autoclave, flash breaker tape, mask for acid and caustic bath
  • Thin, high tear resistance, good temperature resistance, long-term aging, high strength backing
  • Electronics, Automotive, Aerospace, General Industrial, Web Processing, Solar, Composites, Military, Appliance, Transportation
  • Splicing, insulating, edging, reinforcing, protecting, sealing, flash breaking, tabbing, roll closing, powder coat masking
  • Meets several aerospace specifications

Polyester film backing with a translucent green pigmented silicone adhesive.

3M™ Polyester Tape 8402, is ideal for masking in high temperature applications and adheres well to silicone coated surfaces. The green color and silicone adhesive make for easier identification and application when splicing silicone treated paper. Application ideas: Masking edges of overlap seams in metal bonding process where the excess epoxy (flash) flows on the tape Protective tape reduces scratches during handling prior to bonding operations Holding of parts or vacuum bags during bonding operation Maskant for metal in acid or caustic chemical milling baths Paint mask for areas subject to higher temperature bake cycles Splicing of silicone liners and papers Splicing of films subject to high temperatures This tape functions well as a masking tape or in splicing operations, such as splicing of silicone liners and papers and films subject to high temperatures. Regardless of the application, cleanup is simple; just remove the tape and the cleanup is complete. This clean removing, high strength tape helps save time and keeps operations running smoothly. Clean Application and Removal One of the main reasons why this product is known and trusted for use in so many industries is because of its broad temperature compatibility. When put to the test, this tape continues to work effectively in some of the most demanding work conditions. The pressure sensitive silicone adhesive is ideal for high temperatures up to 400°F (204°C) with clean removal during high-temperature masking operations. This product can also be used in temperatures as low as -60°F (-50°C). This represents superior heat resistance when compared with acrylic adhesives. Our 3M™ Polyester Tape 8402 has long service life and is designed to remain firmly adhered and flexible.

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