Tape 1218 Polyimide Film Tape with Acrylic Pressure- Sensitive Adhesive for use as Insulation Tape Data Sheet Product Description Applications 3M Tape 1218 is used for high temperature electrical 3M Tape 1218 is a one mil polyimide backing with acrylic adhesive. It is designed for high temperature applications in which a tough, thin insulating material that is solvent-resistant is required for wrapping coils, applications, in which a solvent resistant backing is required, used on coils, capacitors and wire harnesses. transformers, capacitors and wire harnesses. It is also used as a cover layer material for many types of flexible 1 mil polyimide backing printed circuits. Acrylic adhesive Supplied on 3 inch cores 3M Tape 1218 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. Typical Properties Properties Typical Value Adhesive Acrylic Pressure Sensitive Backing Polyimide 1 Total thickness 3.0 mils / 0.076 mm Operating Temperature 180C (356F) 1 Adhesion to Steel 19 oz/in (0.50Kg/in) 1 Breaking strength 30 lbs./in (14 Kg/in) 1 6 Insulation Resistance >1 x 10 megohms 1 Elongation (% at break) 55 % 1 Dielectric Breakdown 6.0 KV CTI Group IIb 2 Electrolytic Corrosion Factor 1.0 Footnote: 1. Test method ASTM D 1000 2. 3M Test Method-Available on request 1 of 2 3M is a trademark of 3M Company. Important Notice All statements, technical information, and recommendations related to 3Ms products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the product which are not contained in 3Ms current publications, or any contrary statements contained on your purchase order shall have no force or effect unless expressly agreed upon, in writing, by an authorized ofcer of 3M. Warranty Limited Remedy Limited Liability. This product will be free from defects in material and manufacture for a period of one (1) year from the time of purchase. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3Ms option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of the legal theory asserted. Electrical Markets Division 6801 River Place Blvd. Austin, TX 78726-9000 800-626-8381 Fax 800-828-9329 Litho in USA 3M 2006 78-8126-9084-6-A www.3M.com/electrical 2 of 2