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3M 850

3M 850 can generally be used for splicing and applications where chemical resistance and/or clean removal is necessary.
The silver backing is a transparent polyester with a thin layer of aluminum.

  • Backing: Polyester
  • Adhesive: Acrylic
  • Color: Transparent, Red, Black, White, Silver
  • Standard Roll Length:72 yds. (65.8 m)
Data Sheet
Features
Applications
Our Services

3M 850 Data Sheet

3M Polyester Film Tape 850
Product Construction
BackingAdhesiveColorStandard Roll Length
PolyesterAcrylicTransparent, Red,
Black, White, Silver
72 yds. (65.8 m)
Typical Physical Properties
ASTM Test Method
Adhesion to Steel:30 oz./in. width (33 N/100 mm)D-3330
Silver:42 oz./in. width (46 N/100 mm)D-3330
Tensile Strength at Break:28 lbs./in. width (491 N/100 mm)D-3759
Elongation at Break:1.2D-3759
Backing Thickness:0.9 mils (0.02 mm)D-3652
Total Thickness:1.9 mils (0.05 mm)D-3652
Water Vapor Transmission Rate:1.6 gms, H2O/100 sq. in./24 hrs.D-3833
Silver:(24.8 g/m2/24 hrs.)
0.9 gms, H2O/100 sq. in./24 hrs.
(7.75 g/m2/24 hrs.)
D-3833
Temperature Use Range:-60 - 300°F (-50 - 150°C)
Remarks: The above technical information and data should be considered representative or typical only and should not be used for specification purposes.

3M 850 Features

  • Aggressive acrylic adhesive provides a 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 the tape to perform in high-temperature operations
  • Meets a variety of aerospace specifications
  • The silver version is highly visible for applications where marking or identification is required
  • Low modulus, low Shore A Hardness
  • Prolonged exposure to sunlight or hot caustics will cause the backing to become brittle and lose tensile strength.
  • The thin, high-strength polyester film helps reduce failures due to breakage while meeting low caliper requirements.
  • Chemical and solvent resistance to help reduce rejects produced from chemical and solvent attacks.
  • Abrasion is resistant to help protect surfaces from abrasion and rough handling.
  • Variety of colors is offered when easy detection is required.

3M 850 Applications

  • 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
  • Cutting or slitting to the length and width required by the customers
  • Laminate liner or other materials
  • Die cut according to customer's drawing

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