SFTW-203 Tubing 3:1 Very Flexible Polyolefin Data Sheet Product Description Typical Applications Standard Colors 3M ™SF T W -203 is a 3:1 shrink ratio The extra flexibility and low shrink Bl a c k . tubing that offers an outstanding balance temperature of SFTW-203 tubing make it of electrical, physical and chemical ideal for shrink-fit jacketing and Standard Packaging properties for a wide variety of industrial insulation of flexible wire bundles and Boxes of four-foot lengths, or large and military applications. SFTW-203 is temperature sensitive components. Th e spools. Cut pieces subject to factory made of very flexible, heat-shrinkable 3:1 shrink ratio makes SFTW-203 the qu o t a t i o n . polyolefin which is mechanically tough, insulation of choice for end terminations chemically resistant, and can be easily where the connector body is larger than Ordering Information surface printed. the cable and for repair applications SF T W -203 tubing has been where the tubing must be slid over a Order SFTW-203 by product name, size engineered to offer a low shrink co n n e c t o r . SFTW-203 can also be used equivalent to expanded inner diameter, temperature of 100°C (212°F). Th i s to insulate an oversized component in co l o r , and package type. Always order allows the tubing to shrink rapidly, and line to the wiring. the largest size that will shrink-fit snugly minimizes heat exposure and possible over the item to be covered. damage to temperature sensitive Example: SFTW-203, 1/2", black, 4 ft Shrink Ratio su b s t r a t e s . le n g t h s . SF T W -203 tubing meets the SF T W -203 has a 3:1 shrink ratio. Wh e n performance requirements of MIL-DTL- freely recovered, the tubing will shrink to 23053/5 Class 1, and is ULRe c o g n i z e d 33% of its as-supplied internal diameter. (File No. E48398) for flame retardance. The recovered wall thickness of the It is rated for continuous operation from tubing is proportional to the degree of -55°C (-67°F) to 135°C (275°F), and re c o v e r y . withstands elevated temperatures of 300°C (572°F) for brief periods. Typical Properties Applicable Specifications MIL-DTL-23053/5, Class 1; ULFile E48398; CS A LR 38227 Standard Sizes and Dimensions Ph y s i c a l El e c t r i c a l Tensile Strength 2600 PSI Dielectric Strength 700 V/mil Re c o v e r ed Ultimate Elongation 40 0 % Volume Resistivity 10 15 oh m - c m Wall Longitudinal Change ±5 % Ordering Expanded I.D. Re c o v e r ed I.D. Th i c k n e s s Secant Modulus Ch e m i c a l Si z e (M i n i m u m ) (M a x i m u m ) (N o m i n a l ) (2% elong.) 8700 PSI in . (m m ) in . (m m ) in . (m m ) Corrosive effe c t No n - c o r r o s i v e Specific Gravity 1. 2 9 Solvent Resistance 1/ 1 6 .0 5 9 (1 , 5 ) .0 2 0 (0 , 5 ) .0 1 8 (0 , 4 5 ) Heat Shock No cracking, Tensile Strength 1100 PSI 1/ 8 .1 18 (3 , 0 ) .0 3 9 (1 , 0 ) .0 2 2 (0 , 5 5 ) (4 hrs. @ 250°C) fl o w i n g Dielectric Strength 400 V/mil 1/ 4 .2 3 6 (6 , 0 ) .0 7 9 (2 , 0 ) .0 2 6 (0 , 6 5 ) or dripping Fungus Resistance In e r t 3/ 8 .3 5 4 (9 , 0 ) .1 18 (3 , 0 ) .0 3 0 (0 , 7 5 ) Water Ab s o r p t i o n 0. 2 % 1/ 2 .4 7 2 (1 2 , 0 ) .1 5 7 (4 , 0 ) .0 3 0 (0 , 7 5 ) Heat Aging El o n g a t i o n 3/ 4 .7 0 9 (1 8 , 0 ) .2 3 6 (6 , 0 ) .0 3 0 (0 , 7 5 ) (168 hrs. @ 158°C) 35 0 % 1 .9 4 5 (2 4 , 0 ) .3 1 5 (8 , 0 ) .0 3 9 (1 , 0 0 ) Low Temperature Flexibility 1 1/2 1. 5 3 5 (3 9 , 0 ) .5 1 2 (1 3 , 0 ) .0 4 5 (1 , 1 5 ) (4 hrs. @ –55°C) No cracking Fl a m m a b i l i t y Self extinguishing Note: Dimensions in inches are approximate. Technical information provided consists of typical product data and should not be used for specification purposes. Unless otherwise noted, all tests are performed at room temperature.

Limited Warranty– 3M expressly warrants that for a period of ninety days from the date of purchase, 3M static control products will be free of defects in materials (parts) and workmanship (labor). Defects occurring during the warranty period will be repaired or products will be replaced at 3M’s option and expense, if 3M receives notice during the warranty period. Defective products must be returned to 3M with proof of purchase date. Warranty Exclusions–THE FOREGOING EXPRESS WARRANTYIS MADE IN LIEU OF ALLOTHER PRODUCTWARRANTIES, EXPRESS AND IMPLIED, INCLUDING FITNESS AND MERCHANTIBILITY. The express warranty will not apply to defects or damage due to accidents, neglect, misuse, alterations, operator error, or failure to properly maintain, clean, or repair products. Limit of Liability– In no event will 3M or Seller be responsible or liable for special, incidental, or consequential losses or damages, whether based in tort or contract. Fulfillment of 3M’s warranty obligations will be Customer’s exclusive remedy and 3M’s and Seller’s limit of liability for any breach of warranty or otherwise. For your nearest distributor or to order, call 1-800-328-1368 3M Electrical Specialties Division 6801 River Place Blvd. Austin, TX 78726-9000 © 3M March 1997