1205 Tape
Polyimide Film With Acrylic Adhesive
Data Sheet
Product Description
3M 1205 Tape is a 1-mil polyimide backing with
acrylic adhesive. It is designed for high-temperature
applications, in which a solvent-resistant backing is
required, used on coils, capacitors and wire harnesses.
• 1-mil polyimide Kapton backing
• Acrylic adhesive
• Supplied on 3 inch cores
3M 1205 Tape is available in standard and custom
widths and lengths. Standard length is 36 yards.
• Widths from 1/4” to 23”
• Longer lengths up to several times normal length,
dependent upon width. Check with Customer
Service.
Applications
3M 1205 Tape is used for high-temperature electrical
applications in which a tough, thin insulating material
that is solvent resistant is required for wrapping coils,
transformers, capacitors and wire harnesses. It is also
used as a cover layer material for many types of flexible
printed circuits.
Properties Typical Values
Adhesive Acrylic
Backing Polyimide
Backing Thickness1One Mil
Total Thickness 3.0 mils/.076mm
Operating Temperature (continuous) 155°C/311°F
Dielectric Breakdown17,500 Volts
Insulation Resistance1 (megohms) >1 x 106
Breaking Strength130 lbs./in. (53 n/10mm)
Elongation1 (% at break) 55
Electrolytic Corrosion Factor31.0
Adhesion to Steel135 oz./in. (3,8 n/10mm)
UL 510 Flame Retardant2Yes
*Footnote: 1. Test method ASTM D 1000
2. UL-recognized for flame retardancy per UL 510, Product Category 0ANZ2, File E17385.
3. 3M Test Method-Available on request