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.
|3M Polyester Film Tape 850|
|Backing||Adhesive||Color||Standard Roll Length|
|Polyester||Acrylic||Transparent, 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:||1.2||D-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.)
|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.|
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