Insulstretch®

Magnet Wire Insulation Insulstretch® 42HCF, 32HCF, 22HCF lnsulstretch 42HCF is a 3 mil, highly densified, thermally upgraded, creped/calendered electrical paper with 15-20 percent MD elongation. This grade exhibits very high tensile strength with precision thickness and density. This premium magnet wire insulation is well suited for high speeds and tensions in wire wrapping operations. After the wire is wrapped, this grade will give the maximum amount of protection for small radius bends in the coil winding process. Cindus grade 42HCF has proven to be a superior creped/ calendered magnet wire insulation. lnsulstretch 32HCFis a 3 mil companion product to 42 HCF. This grade is a lower cost alternative that provides superior tear strength but reduced tensile strength. This grade also offers improved impulse characteristics because of higher density. lnsulstretch 22HCF is a 2 mil, highly densified, thermally upgraded, creped/ calendered electrical paper with 15-20 percent elongation. This grade is offered to accommodate different insulation systems that call for space saving 2 mil thickness. This grade also supplies excellent mechanical and insulating characteristics comparable to 42HCF. The densification process at Cindus Corporation can achieve densitieswell in excess of 1.0 gmlcc to provide higher impulse strengths. Cindus can customize the above grades to varying densities by altering the finished thickness. The thermal upgrading system used on all magnet wire grades is INSULDUR. Other upgrading systems can be furnished with appropriate quantities. All magnet wire grades can be prepared as precision slit pads as narrow as 3/8" and as master rolls of up to 22 1/2" wide. MECHANICAL PROPERTIES 42HCF 32HCF 22HCF Caliper (inches) Elongation (percent) Apparent Density (gm/cc) Tensile Strength (lbs/in) Edge Tear, inch (lbs-5/8" width) Toughness, T.E.A. (lbs-ft/ft2) Basis Weight (lbs/3000 ft3) Moisture (Percent) 0.003 15-20 1.15 45 30 35 54 5.5 0.003 15-20 1.15 35 32 30 50 5.5 0.002 15-20 1.15 35 25 28 36 5.5   Thermal upgrading using alternative systems is available with appropriate quantities. Nitrogen content is varied depending on customer needs. All tests are certified to conform to specific requirements

Cindus aging performance meets all specifications and performance of competitive papers.

Cindus is less stiff and protects against compressive forces.

Cindus has a better TEA for wire wrapping and coil winding.

Expert Remarks: If the objective of these studies was to compare the Cindus and our competitors upgraded papers, it has been accomplished. Both papers are very similar in properites, although there are minor differences: The competitor crepe is stiffer than Cindus crepe. However, the stretch properties are most important only during taping. Aged insulation on the conductors do not experience tensile forces, but short circuit events exert compressive forces, and we do not have a comparative evaluation of these properties. 12/15/2005

Insulstretch Tubes Cindus Insulstretch Tubes are made from electrical grade creped paper, wound convolutely for maximum flexibility. Available in a number of different sizes and wall thicknesses, Insulstretch Tubes are tested for conformance to industry standards. Seams Seams made of specialized adhesive are strong and durable, designed to resist splitting while retaining optimum flexibility. Power Factor stability is insured by the chemical nature of the adhesive and the use of only the amount necessary to properly fabricate the tubes. Performance Insulstretch Tubes are designed for maximum performance in all applications. Contact us at 1-800-543-4691 with your requirements. Dielectric Strength in Oil Convolute Crepe Layers Normal Wall Thickness 60 Hz 1 min. Hold Withstand kV 1.2 x 50 Microsecond Impulse Withstand kV 3 1/32" (0.8mm) 15 47 5 1/16" (1.6mm) 28 87 10 1/8" (3.2mm) 43 126 16 3/16" (4.8mm) 50 150 The values listed should only be used as a guide and are not intended for design purposes

Insulstretch Hand Tape These products are used for a variety of end uses from automotive starter motors and electric motors to static rings, high voltage cable and coil separation sheets. The base paper used is either 3 or 5 mil high density or low density stock. The stretch and thickness is varied to meet the needs of the end user. Thermal upgrading to INSULDUR, GETP or other systems is available with appropriate quantities. Laminate grades of 51OH are available for specific needs. High Density: 55H, 55HC, 510H, 510HC, 35H, 35HC, 310H, 310HC Low Density: 35,310,55,510, 510C. Automotive starter motors, electric motors, static rings, high voltage cable wrap and other hand taping applications have used Cindus Insulstretch products. These grades are also used for coil separation in the coil winding process. Either high or low density grades can be calendered to precise thicknesses. X-Crepe has also been used in starter motor applications where greater flexibility is needed for convolute wire wraps that must endure extreme radius bending. Sample grades of X-Crepe are available upon request.

High Density 35H 35HC 310H 310HC 55H 55HC 510 510HC Roll Width 1/2" 1" 1/2" 1" 1/2" 1" 1/2" 1 1/2" 1" 1/2" 1" 1/2" 1" 1/2" 1" Ft./Lb 1042 521 1042 521 782 391 782 391 630 315 630 31 474 23 474 237 Low Density 35 310 52 55 510 510C Roll Width 1/2" 1" 1/2" 1" 1/2" 1" 1/2" 1" 1/2" 1" 1/2" 1" Ft./Lb 1333 667 1000 500 1091 546 867 434 655 32 655 328

Grade No. Elongation Tensile Strength (lbs./in) Yield (lbs./sq.yd) Thickness (mils) 35H 50 40 .21 15 35HC 50 40 .21 7 310H 100 40 .28 18 310HC 100 60 .28 12 55H 50 60 .34 21 55HC 50 60 .34 11 510H 100 60 .46 29 510HC 100 20 .46 15 35 50 20 .16 12 310 100 25 .21 16 52 20 25 .20 16 55 50 25 .25 18 510 100 25 .33 21 510C 100 25 .33 13

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