product description 3 m s f t w -203 is a 3:1 shrink ratio tubing that offers an outstanding balance of electrical, physical and chemical properties for a wide variety of industrial and military applications. SFTW-203 is made of very flexible, heat-shrinkable polyolefin which is mechanically tough, chemically resistant, and can be easily surface printed. s f t w -203 tubing has been engineered to offer a low shrink temperature of 100? (212?). t h i s allows the tubing to shrink rapidly, and minimizes heat exposure and possible damage to temperature sensitive s u b s t r a t e s . s f t w -203 tubing meets the performance requirements of mil-dtl- 23053/5 class 1, and is ul r e c o g n i z e d (file no. e48398) for flame retardance. it is rated for continuous operation from -55? (-67?) to 135? (275?), and withstands elevated temperatures of 300? (572?) for brief periods. SFTW-203 t ubing 3:1 v ery flexible polyolefin data sheet t ypical applications the extra flexibility and low shrink temperature of SFTW-203 tubing make it ideal for shrink-fit jacketing and insulation of flexible wire bundles and temperature sensitive components. t h e 3:1 shrink ratio makes SFTW-203 the insulation of choice for end terminations where the connector body is larger than the cable and for repair applications where the tubing must be slid over a c o n n e c t o r . SFTW-203 can also be used to insulate an oversized component in line to the wiring. shrink ratio s f t w -203 has a 3:1 shrink ratio. w h e n freely recovered, the tubing will shrink to 33% of its as-supplied internal diameter. the recovered wall thickness of the tubing is proportional to the degree of r e c o v e r y . standard colors b l a c k . standard packaging boxes of four-foot lengths, or lar g e spools. cut pieces subject to factory q u o t a t i o n . ordering information order SFTW-203 by product name, size equivalent to expanded inner diameter, c o l o r , and package type. always order the largest size that will shrink-fit snugly over the item to be covered. example: SFTW-203, 1/2", black, 4 ft l e n g t h s . r e c o v e re d wall ordering expanded i.d. r e c o v e r ed i.d. t h i c k n e s s s i z e ( m i n i m u m ) ( m a x i m u m ) ( n o m i n a l ) i n . ( m m ) i n . ( m m ) i n . ( m m ) 1 / 1 6 . 0 5 9 ( 1 , 5 ) . 0 2 0 ( 0 , 5 ) . 0 1 8 ( 0 , 4 5 ) 1 / 8 . 11 8 ( 3 , 0 ) . 0 3 9 ( 1 , 0 ) . 0 2 2 ( 0 , 5 5 ) 1 / 4 . 2 3 6 ( 6 , 0 ) . 0 7 9 ( 2 , 0 ) . 0 2 6 ( 0 , 6 5 ) 3 / 8 . 3 5 4 ( 9 , 0 ) . 11 8 ( 3 , 0 ) . 0 3 0 ( 0 , 7 5 ) 1 / 2 . 4 7 2 ( 1 2 , 0 ) . 1 5 7 ( 4 , 0 ) . 0 3 0 ( 0 , 7 5 ) 3 / 4 . 7 0 9 ( 1 8 , 0 ) . 2 3 6 ( 6 , 0 ) . 0 3 0 ( 0 , 7 5 ) 1 . 9 4 5 ( 2 4 , 0 ) . 3 1 5 ( 8 , 0 ) . 0 3 9 ( 1 , 0 0 ) 1 1/2 1 . 5 3 5 ( 3 9 , 0 ) . 5 1 2 ( 1 3 , 0 ) . 0 4 5 ( 1 , 1 5 ) standard sizes and dimensions note: dimensions in inches are approximate. p h y s i c a l tensile strength 2600 psi ultimate elongation 4 0 0 % longitudinal change ?5 % secant modulus (2% elong.) 8700 psi specific gravity 1 . 2 9 heat shock no cracking, (4 hrs. @ 250?) f l o w i n g or dripping water a b s o r p t i o n 0 . 2 % heat aging e l o n g a t i o n (168 hrs. @ 158?) 3 5 0 % low temperature flexibility (4 hrs. @ ?5?) no cracking f l a m m a b i l i t y self extinguishing e l e c t r i c a l dielectric strength 700 v/mil volume resistivity 1 0 1 5 o h m - c m c h e m i c a l corrosive ef f e c t n o n - c o r r o s i v e solvent resistance tensile strength 1100 psi dielectric strength 400 v/mil fungus resistance i n e r t t ypical properties t echnical 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. applicable specifications mil-dtl-23053/5, class 1; ulfile e48398; c s a lr 38227
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? option and expense, if 3m receives notice during the warranty period. defective products must be returned to 3m with proof of purchase date. w arranty exclusions the foregoing express warrantyis made in lieu of allother product w arranties, 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? warranty obligations will be customer? exclusive remedy and 3m? and seller? 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
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