Polyester Film Tape
850
Technical Data
July, 2011
Product Description
3M™ Polyester Film Tape 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.
Product Construction
Backing
Polyester
Adhesive
Acrylic (transparent)
Color
Transparent, Red,
Black, White, Silver
Standard Roll Length
72 yds. (66 m)
Typical Physical
Properties
Note: The following technical information and data should be considered representative
or typical only and should not be used for specification purposes.
ASTM Test Method
Adhesion to Steel:
Silver:
Tensile Strength at Break:
Elongation at Break:
Backing Thickness:
Total Tape Thickness:
Water Vapor Transmission Rate:
Silver:
Temperature Use Range:
30 oz./in. width (33 N/100 mm)
42 oz./in. width (46 N/100 mm)
28 lbs./in. width (491 N/100 mm)
120%
0.9 mil (0.02 mm)
1.9 mils (0.05 mm)
1.6 gms. H
2
O/100 sq. in./24 hrs.
(24.8 g/m
2
/24 hrs.)
0.9 gms. H
2
O/100 sq. in./24 hrs.
(7.75 g/m
2
/24 hrs.)
-60°F to 300°F (-50°C to 150°C)
D-3330
D-3330
D-3759
D-3759
D-3652
D-3652
D-3833
D-3833
Features
• Prolonged exposure to sunlight or hot caustics will cause backing to become
brittle and lose tensile strength.
• 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 attack.
• Abrasion resistant to help protect surface from abrasion and rough handling.
3M
™
Polyester Film Tape
850
Application Ideas
Transparent, Red, Black, White:
• Splicing and web defect marking.
• Sealing, labeling and protecting.
• Positive film striping (transparent).
• Decorative edging.
• Tape hinge.
Silver:
• Post splicing movie film.
• Deflect flagging where reflective
sensing is required.
• Decorative striping and die cutting.
• Decorative edging.
Storage
Store under normal conditions of 60° to 80°F (16° to 21°C) and 40 to 50% R.H. in
the original carton.
Shelf Life
To obtain best performance, use this product within 18 months from date of
manufacture.
Technical Information
The technical information, recommendations and other statements contained in this document are
based upon tests or experience that 3M believes are reliable, but the accuracy or completeness of such
information is not guaranteed.
Product Use
Many factors beyond 3M’s control and uniquely within user’s knowledge and control can affect the use
and performance of a 3M product in a particular application. Given the variety of factors that can affect
the use and performance of a 3M product, user is solely responsible for evaluating the 3M product and
determining whether it is fit for a particular purpose and suitable for user’s method of application.
Warranty,
Limited Remedy,
and Disclaimer
Unless an additional warranty is specifically stated on the applicable 3M product packaging or product
literature, 3M warrants that each 3M product meets the applicable 3M product specification at the time
3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY
OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE.
If the 3M product does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s
option, replacement of the 3M product or refund of the purchase price.
Limitation of Liability
Except where prohibited by law, 3M will not be liable for any loss or damage arising from the 3M product,
whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted,
including warranty, contract, negligence or strict liability.
ISO 9001: 2008
This Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001: 2008 standards.
Industrial Adhesives and Tapes Division
3M Center, Building 225-3S-06
St. Paul, MN 55144-1000
800-362-3550 • 877-369-2923 (Fax)
www.3M.com/industrial
Recycled Paper
40% pre-consumer
10% post-consumer
3M is a trademark of 3M Company.
Printed in U.S.A.
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