3M™ Polyester Film Tape 850

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 and the gold is a pigmented polyester with a thin layer of aluminum.

PRODUCT CONSTRUCTION:

Backing	Adhesive	Color	Standard Roll Length
Polyester	Acrylic (transparent or pigmented)	Transparent, Red, Black, White, Silver, Gold	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:	30 oz./in. width (33 N/100 mm)	D-3330
Silver and Gold:	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:	120%	D-3759
Backing Thickness:	0.9 mil (0.02 mm)	D-3652
Total Tape Thickness:	1.9 mils (0.05 mm)	D-3652
Water Vapor Transmission Rate:	1.6 gms. H₂O/100 sq. in./24 hrs. (24.8 g/m²/24 hrs.)	D-3833
Silver and Gold:	0.9 gms. H₂O/100 sq. in./24 hrs. (7.75 g/m²/24 hrs.)	D-3833
Outgassing (Transparent Tape):	%TML .61, %CVCM .08

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 abrasions and rough handling.

APPLICATION IDEAS:

Transparent, Red, Black, White:

Splicing and web defect marking.
Sealing, labeling and protecting.
Positive film striping (3M™ Polyester Film Tape 850 - transparent).
Decorative edging.
Tape hinge.

Silver and Gold:

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 27°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.

PRODUCT USE:

All statements, technical information and recommendations contained in this document are based upon tests or experience that 3M believes are reliable. However, many factors beyond 3M's control can affect the use and performance of a 3M product in a particular application, including the conditions under which the product is used and the time and environmental conditions in which the product is expected to perform. Since these factors are uniquely within the user's knowledge and control, it is essential that the user evaluate the 3M product to determine whether it is fit for a particular purpose and suitable for the user's method of application.

WARRANTY AND LIMITED REMEDY:

Unless stated otherwise in 3M's product literature, packaging inserts or product packaging for individual products, 3M warrants that each 3M product meets the applicable specifications at the time 3M ships the product. Individual products may have additional or different warranties as stated on product literature, package inserts or product packages. 3M MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. User is responsible for determining whether the 3M product is fit for a particular purpose and suitable for user's application. If the 3M product is defective within the warranty period, your exclusive remedy and 3M's and seller's sole obligation will be, at 3M's option, to replace the product or refund the purchase price.

LIMITATION OF LIABILITY:

Except where prohibited by law, 3M and seller 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.

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