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SKU 7000047522
Legacy SKU 70002807215
UPC 00021200035791
Product Number 850

For splicing applications requiring quick stick and an aggressive, permanent hold, use our 3M™ Polyester Film Tape 850 Silver. Used in a variety of applications, including web processing, label protection, and marking.

  • Aggressive acrylic adhesive provides quick stick and excellent long-term holding in splicing applications
  • Thin, high strength polyester film meets low caliper requirements which won't interfere with most machinery processes
  • Polyester backing resists tearing and protects surfaces from abrasion and rough handling
  • Temperature resistance enables tape to perform in high temperature operations
  • Meets a variety of aerospace specifications
  • Silver version is highly visible for applications where marking or identification is required
  • Low modulus, low Shore A Hardness
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On it's way to you December 8   


Minimum Order 36 Rolls
Order Increment 36 Rolls
  Global Shipping
  Industry Low Price Per Roll
Product Dimensions
Imperial Metric
Width 1 in 25 mm
Length 72 yd 66 m
Shipping Dimensions
Weight 9.1271 lb
Length 10.118 in
Width 9.803 in
Height 10.433 in
Color Silver


  1. What is 3M™ Polyester Film Tape 850 used for?

    3M™ Polyester Film Tape 850 is a high-performance tape that is perfect for splicing and securing polyester film media, such as Mylar® or other plastic films. This silver tape provides a reliable bond and can be removed cleanly without leaving residue behind.

  2. Does this roll of tape come in any other sizes?

    Yes! While the size listed in the product name is Silver, 1 in x 72 yd, we offer many different widths and lengths to fit your specific needs. Be sure to check out our full selection on our website or ask your local retailer.

  3. Is there anything else I should know about this product before purchasing it?

    We highly recommend testing the tape on a small area first before applying it to a larger surface. Additionally, always use caution when removing the tape from delicate surfaces such as paper or photographic materials. If you have any questions about how best to use this product, don't hesitate to reach out – we're here to help make your project go smoothly!

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
An Aggressive and Permanent Hold

Our 3M™ Polyester Film Tape 850 is a high-strength tape that is commonly used for splicing and web applications. The tape features a thin, abrasion-resistant polyester backing that helps to reduce splice failures and resist breakdowns during rough handling and web processing. It is coated with an aggressive pressure-sensitive acrylic adhesive that grabs on contact and holds securely. The tape meets low-caliper requirements to ensure it won't interfere with most machinery. It can withstand a wide temperature range from -60°F/-50°C to 300°F/150°C.

Recommended Applications (Red, Black and White)
  • Core starting
  • Splicing and web defect marking
  • Sealing, labeling and protecting
  • Decorative edging
  • Tape hinge
Recommended Applications (Transparent)
  • Sealing and protecting against chemical intrusion
  • Label protection where readability is a concern
  • Meets a variety of specifications in the aerospace industry
  • Core starting and splicing
Recommended Applications (Silver)
  • Defect flagging where reflective sensing is required
  • Decorative striping and edging
  • Meets a variety of specifications in the aerospace industry
  • Splicing of film, including movie film
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