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3M 850
Transparent & Colored Polyester Film Tapes

General Information
A 1.9 mil. polyester film tape that can generally be used for splicing and applications where chemical resistance and/ or clean removal is necessary. Tape is not recommended to exceed 12 months of storage under normal storage conditions at 70°F and 50% relative humidity. Prolonged exposure to sunlight or hot caustics will cause backing to become brittle and lose tensile strength. 850 transparent tape is qualified to meet federal spec.
Backing Adhesive
(unwind)		 Thickness
(total)		 Liner Type
(outer)
PET - Polyester Acrylic 1.90 mil  

Adhesion to Steel
180° Peel		 Adhesive Activation Tensile Strength Elongation Percent
29.00 oz/in Pressure 28.00 lbs/in 140.00%

Min Application
Temp		 Min Service
Temp		 Max Short-Term
Temp		 Max Long-Term
Temp
50 °F -60 °F 350 °F  
Adhesive Tape Features
  • Thin, high tensile strength
  • High moisture resistance
  • Chemical and solvent resistance
  • Wide temperature range resistance for short periods of time
  • Abrasion resistance
  • Firm, long aging
  • Polyester film backing
  • Acrylic adhseive
  • Moisture vapor transmission rate = 1.3 gms H2O/ 100 sq. in./ 24 hrs.
  • Outgassing = % TML 0.61, %CVCM 0.08
  • Reduces failures due to breakage while meeting low caliper requirements
  • Protects against moisture penetration
  • Reduces rejects produced from chemical and solvent attack
  • Reduces failure caused by film shrinkage or embrittlement
  • Provides surface protection from abrasion and rough handling
  • Reduces failure caused by adhesive oozing and loss of tack
Adhesive Tape Applications
  • Splicing and web defect marking
  • Decoration
  • Sealing, labeling and protecting
  • Edging
  • Tape hinge
  • Positive film stripping (transparent only)
Adhesive Tape Markets Served
Adhesive Tape Colors
  • Black
  • Clear
  • Gold
  • Red
  • Silver
  • White

Comparable products

3M 850 View Datasheet
Transparent & Colored Polyester Film Tapes
Backing Adhesive Thickness Adhesion
 PET - Polyester   Acrylic   1.90mil   29.00oz/in 
tesa tape inc 4129 View Datasheet
Solar Cell Securing Tape
Backing Adhesive Thickness Adhesion
 PET - Polyester   Acrylic   2.00mil   30.00oz/in 
tesa tape inc 4137 View Datasheet
Aluminized Polyester Splicing Tape
Backing Adhesive Thickness Adhesion
 PET - Polyester   Acrylic   2.00mil   15.00oz/in 
Covalence/Tyco 730 View Datasheet
Single-Coated Polypropylene Splicing Tape
Backing Adhesive Thickness Adhesion
 BOPP - Biaxially Oriented Polypropylene   Acrylic   2.00mil   25.00oz/in 

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