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Topic: Kapton

	Information Notice No. 88-89: DEGRADATION OF KAPTON ELECTRICAL INSULATION
		Kapton is used extensively in nuclear power plants as wire insulation in con-tainment penetrations and cable entrance seals manufactured by Conax Buffalo Corporation, and in various insulation systems in products supplied by other vendors.
		This is because Kapton tends to degrade when exposed to high temperature steam or to certain volatile chemicals such as sodium hydroxide.
		Since the film consists of 0.001 inch of Kapton sandwiched between two 0.0005-inch layers of Teflon (a du Pont trademark for FEP fluorocarbon), and each wrap is overlapped 50-percent, the total insulation thickness is 0.008 inch.
	www.nrc.gov /reading-rm/doc-collections/gen-comm/info-notices/1988/in88089.html (2037 words)

	Kapton Tape: Can Do Tape
		Kapton tape can either be amber or clear in color, and the film thickness ranges between 1 and 5 mils while the adhesive may range from 1 to 2 mils thick.
		Some of Kapton tape’s primary uses are in electrical applications such as coil insulation, capacitor and transformer wrapping or insulation, magnetic wire insulation, and in gold leaf masking during wave soldering.
		Kapton tape is also used in the auto industry for wrapping switches, diaphragms, sensors and coils in seat heaters.
	www.can-dotape.com /kapton-tape.htm (308 words)

	DuPont Kapton® Polyimide Film: What's New
		Hundreds of Kapton® strip heaters are used throughout the rovers for thermal control, ensuring critical warmth needed to maintain operations in the extremely cold martian atmosphere.
		Kapton® strip heaters significantly reduce that risk and allow the rovers to use smaller solar panels and batteries.
		Kapton® strip heaters are wrapped around each of the motors on the robotic arm to keep the motors and gearboxes running at optimum temperature and efficiency.
	www.dupont.com /kapton/news/marsrovers.html (776 words)

	DuPont Product (Kapton]
		Kapton® FCR is used as the primary insulation in this AC traction motor.
		Kapton® FN is used as the primary insulation in this DC traction motor.
		Kapton® is used as primary insulation on the conductors and between conductor layers.
	www.iec-international.com /dupont/kapton.htm (305 words)

	KaptonÒ Wiring Report
		Airbus uses Kapton® as slot liner for the stator in the alternator, which functions as a back-up to the generators in case of a major electrical failure.
		Kapton® is used for diaphragms, insulators, gaskets and parts that must withstand adverse operating conditions in automotive applications.
		Kapton® polyimide film was designed to function as an excellent adhesive and bonding sheet for high temperature performance material constructions.
	www.eng.buffalo.edu /Courses/ce435/2001ZGu/Kapton_Wires/KaptonWiresReport.htm (2618 words)

	Kapton Film - American Durafilm (Site not responding. Last check: 2007-10-26)
		Kapton is synthesized by polymerizing an aromatic dinahydride and an aromatic diamine.
		The outstanding properties of Kapton permit it to be used at both high and low temperature extremes where other organic polymeric materials would not be funtional.
		Kapton film can be used in a variety of electrical and electronic insulation applications: wire and cable tapes, formed coil insulation, substrates for flexible printed circuits, motor slot liners, magnet wire insulation, transformer and capacitor insulation, magnetic and pressure-sensitive tapes, and tubing.
	www.americandurafilm.com /9kapton.htm (495 words)

	KAPTON: Dangerous aircraft wire
		Kapton insulation (a DuPont trade name, although their patent has now expired and they are no longer the sole manufacturers) seemed to be the dream wire insulation for commercial and military fleets in the 1970s and '80s.
		By now, Kapton had been widely installed in civilian airliners, and the industry comforted itself by claiming that military planes underwent unusual stresses that were inapplicable to their civilian counterparts.
		He "cooked" the Kapton in the oven to prematurely age it, then he nicked it, wound it round a nail and inserted it into a mug of water heated to 200 degrees (the operating temperature of the wire).
	www.vision.net.au /~apaterson/aviation/kapton_mangold.htm (3119 words)

	KaptonOnline: Kapton tapes, Polyimide, kapton tape, 1 mil kapton tape, 2 mil kapton tape, 5 mil kapton tape, double ...
		Kapton® tapes are polyimide polymers in the form of a film.
		Kapton® polyimide tapes are also known as high temperature tape or polyimide tape.
		Kapton tapes are produced in 1, 2 and 5 mil thickness.
	www.kaptononline.com (157 words)

	Kapton - Precision Paper Tube Company
		General Description: Kapton® polyimide film is an extremely strong, transparent (amber) film that retains its high dielectric strength over a very wide range of temperatures.
		It remains flexible at liquid helium temperature (-269°C) and does not lose its strength until it reaches a temperature of +815°C. The tubing properties shown below are in a lower range as the sealing agent used to produce Kapton® tubing limits its high temperature usage.
		Kapton® is flame resistant and begins to char only above 8OO°C. It does not melt and is self-extinguishing.
	www.pptube.com /products/prod_kapton.html (161 words)

	Wiring - the Original Challenge
		The aromatic polyimide (Kapton) wiring on the aircraft, although resistant to burning at lower temperatures, flares brilliantly under the intense 10,000 degrees F heat of an electrical short circuit.
		At the extreme temperatures of an electrical fire, Kapton changes into carbon and becomes a conductor...You do not have a lot of time to isolate which bus is causing the smoke/fire.
		Unlike Kapton, it is not fireproof in the face of chemical (as opposed to electrical) fires.
	www.iasa.com.au /folders/Safety_Issues/Aircraft_Wire/tkt.html (1015 words)

	Fralock: DuPont Kapton HN, Kapton VN, Kapton HPP-ST, Kapton MT, and Kapton MTB
		Kapton is synthesized by polymerizing an aromatic dianhydride and an aromatic diamine.
		The outstanding properties of Kapton permit it to be used at both high and low temperature extremes where other organic polymeric materials would not be functional.
		Kapton polyimide film can be used in a variety of electrical and electronic insulation applications: wire and cable tapes, formed coil insulation, substrates for flexible printed circuits, motor slot liners, magnet wire insulation, transformer and capacitor insulation, magnetic and pressure-sensitive tapes, and tubing.
	www.fralock.com /materials/kapton.asp (249 words)

	Kapton polyimide film, Kapton, Kapton tape, Kapton Film, polyimide film, Kapton Polyimide Film Spec
		Kapton® type HN is a tough, aromatic polyimide film, exhibiting an excellent balance of physical, chemical, and electrical properties over a wide temperature range, particularly at unusually high temperatures.
		The outstanding properties of Kapton® permit it to be used at both high and low temperature extremes where other organic polymeric materials would not be functional.
		Kapton® polyimide film can be used in a variety of electrical and electronic insulation applications: wire and cable tapes, formed coil insulation, substrates for flexible printed circuits, motor slot liners, magnet wire insulation, magnetic and pressure sensitive tapes, and tubing.
	www.plasticshimsandgaskets.co.uk /psg_apps/stage1/kapton.htm (307 words)

	Kapton
		KAPTON® is chemically inert to a high degree, and has no known organic solvent.
		KAPTON® is the only known film material which is stable with respect to corona discharge (for type CR).
		KAPTON® polyimide film is especially suitable for applications in which high operating temperatures are encountered, where other plastic film materials fail.
	www.krempel.com /krempel_2002_gb/kapton_gb.htm (522 words)

	Kapton (Site not responding. Last check: 2007-10-26)
		High watt densities possible due to a minimum of insulation between element and surface to be heated.
		Kapton™ is a clear amber colored polyimide film.
		The standard elements for HEATFLEX Kapton™ heaters are the same etched circuits used in the silicone rubber heaters.
	www.kelvintech.com /heatflex1.htm (112 words)

	Kapton tape, Polyimide kapton Tapes, kapton masking tapes, 1 mil kapton tapes, 2 mil kapton tapes, 5 mil kapton tapes, ...
		Kapton tape is made of polyimide film with heat resistant silicone adhesive to withstand temperature up to 500°F. Some of Kapton products are:
		Low static kapton tape is made of 1 mil polyimide film backed by silicone adhesive.This tape can withstand temperature up to 500°F. Adhesive is 1.6mil thick.
		Kapton tape is cut to specific size for masking in Electrical and thermal insulation applications, in particular for the masking of Gold fingers on circuit boards during wave soldering.
	www.kaptontape.com (293 words)

	Kapton Ribbon Tweeter (Site not responding. Last check: 2007-10-26)
		While most ribbon tweeters are constructed of mylar, the latest ribbon tweeters use a material invented by Dupont called Kapton.
		Kapton has been around a while but has only recently become affordable for home audio use.
		It is very strong and heat resistant, even at only.01mm thick (the human hair is about.07mm in diameter).
	www.htd.com /Kapton-Ribbon-Tweeter (163 words)

	Kapton Polyimide Film and Tapes, Die Cut - JJ Orly
		Kapton® polyimide film is used on the windings of large coils for motors, flexible circuits, electrical insulation, thermal barrier in electronics and aerospace applications.
		Kapton® polyimide film is compatible with many high-temperature impregnating varnishes, including polyimides, esterimides, epoxies, silicones, amides-imides and organo-silicones, used to make today’s electrical equipment.
		Kapton® is a registerd trademark of the Dupont Company.
	www.jjorly.com /kapton_polyimide_parts_fabrication.htm (264 words)

	[No title]
		Kapton Discs 500 Deg.F (260 Deg.C) Size: 1/4 in X 36 yards Quantity: 36 rolls per case - Excellent chemical resistance.
		Kapton Discs 500 Deg.F (260 Deg.C) Size: 5/16 in X 36 yards Quantity: 36 rolls per case - Excellent chemical resistance.
		Kapton Discs 500 Deg.F (260 Deg.C) Size: 3/8 in X 36 yards Quantity: 24 rolls per case - Excellent chemical resistance.
	www.epttool.com /cat148_1.htm (428 words)

	Kapton Tape and Kapton Dots supplied by Warton Metals Limited
		Adhesive KaptonÒ tape is an insulation tape for extreme temperatures, with excellent resistance to thermal radiation.
		KaptonÒ Tape is available in 3, 6, 9, 12, 19 and 25mm width rolls (Other sizes may be available).
		KaptonÒ Dots are available in 4, 6, 9 and 12mm diameter and supplied per 1000 dots.
	www.warton-metals.co.uk /kapton.html (197 words)

	Re: Where do you find kapton tape? - Trains.com Forums
		The Kapton tape is the Yellow tape holding the decoder on the Styrofoam.
		Kapton tape is the recommended tape for this because it is a lot thinner than fl electrical tape, is a lot less messy, and is way stronger than other thin tapes like clear scotch tape.
		Kapton® tape is made from polyimide film, it is used to make flexible circuits used in disk drives and many other applications.
	www.trains.com /TRC/CS/forums/1069431/ShowPost.aspx (641 words)

	Re: Kapton - E2E Engineer Discussion Forum
		Kapton is used extensively in the aerospace industry.
		It does not affect Kapton sheet laminates which are used to make flexible heaters, flexible circuits and surface mount style temperature sensors.
		Kapton (in sheet form) is the material specified by NASA for insulation of heating elements (See GSFC Spec S311-P-079) and some sensors that go into mission-critical applications.
	www.minco.com /community/forums/109/ShowPost.aspx (485 words)

	Kapton Insulated Thermocouple Wire
		Fused Kapton tape applied to conductors and jackets.
		20 gage, type J, solid, kapton insulated thermocouple wire in 100 ft. spools.
		24 gage, type J, stranded, kapton insulated thermocouple wire in 50 ft. spools.
	www.omega.com /pptst/KK_WIRE.html (331 words)

	The Effects of Kapton on Fire: Mother Jones on Ford's Switch Problem - Jalopnik
		The problem, apparently, is Kapton, a DuPont-manufactured material that has been banned from use in US military aircraft due to its propensity to catch fire.
		I think the deal actually is that Kapton and the other polyimides are, themselves, not flammable (or indeed reactive in pretty much any other way), but that Kapton's wear properties have turned out not to be good enough for use in wiring looms where stuff rubs on other stuff.
		At that point, the kapton becomes conductive, and the current from the short circuit continues to flow - through the kapton.
	www.jalopnik.com /cars/news/the-effects-of-kapton-on-fire-mother-jones-on-fords-switch-problem-167791.php (694 words)

	Aircraft Electrical Wire Types by Alex Paterson
		Acknowledge that Kapton wire is a particularly dangerous hazard to aircraft and insist upon its its removal from aircraft where practical.
		Flash-over is the self propagation and catastrophic escalation of an arc tracking event through the instant creation of a major carbon char pathway associated with the heat that is generated during the initial arc track event (i.e.
		However, according to the America's foremost independent aircraft wire expert, Edward Block, this type of wire is "just Kapton with a cosmetic coating of Teflon which is used for marking purposes only and does little to reduce Kapton's propensity to explosively arc track".
	www.vision.net.au /~apaterson/aviation/wire_types.htm (3180 words)

	Kapton Wiring: The Silent Menace
		The culprit finally was found; it was bad Kapton wiring behind the caution panel.
		Despite our maintainers' successes in dealing with Kapton wiring, in time, the failures will increase and, unfortunately, could lead to a catastrophic failure or a mishap.
		The most difficult part about flying an aircraft prone to faulty Kapton wiring is the unpredictability of the electrical system.
	www.safetycenter.navy.mil /media/mech/issues/summer02/kaptonwiring.htm (545 words)

	diyAudio Forums Archive - Kapton Tape problems
		Kapton is frighteningly easy to cut, and 1 mil is mighty thin.
		I found a few (1 or2) SS amps that had burn thru on there Kapton, but I also found metal debris under the Kapton indicating unclean assembly or reassembly from after market repair services from less qualified tech's.
		Kapton has served me well for many years now with zero failures on properly prep'ed surfaces.
	www.diyaudio.com /forums/showthread/t-87185.html (1107 words)

	Barcode Labels, Kapton Labels, Polyimide Labels
		Kapton labels are great for printed circuit board labeling, pc boards, small components and finishes.
		Kapton is known for it's resistance to extreme temperatures, chemical resistance and anti-smudging.
		We recommend that you are using a printer with a minimum resolution of 300 DPI and our premium resin ribbon.
	www.eversio.com /barcode_labels/kapton_labels.html (87 words)

	Kapton® Class C electrical insulating materials 220° C (UL E39505)
		It has excellent physical properties and dielectric strength suitable for applications in heat-sink insulation for power transistor and power supplies.
		CR polymide film was developed specifically to withstand the demanging effects of "corona", which can cause ionization and eventual breakdown of an insulation material or system when the voltage stress reaches a critical level.
		HN film is the ideal insualtion material for use in space application.
	www.isocom.it /ENG/kapton.htm (906 words)

	The RAF's Kapton wiring experiences
		The investigation revealed that this highly dangerous situation was the result of a phenomenon known as carbon arc tracking.
		Kapton insulation) each scintillation will deposit a micro-spot of carbon char (see Fig 3) with a thermally stable conducting graphitic structure.
		There is no change in leakage current at this stage and the formation of spots will continue, often with a characteristic ‘tree’ pattern until a sufficiently complete path has formed to enable the next flashover to be sustained as a ‘power arc’ (see Fig 4) through the newly formed low resistance graphitic carbon track.
	www.iasa.com.au /folders/Safety_Issues/Aircraft_Wire/RAFKapton.html (2429 words)

	Corona Resistant - Kapton ® CR Film
		At a voltage stress of 20 kV/mm,(500 V/mil) AC at 50 Hz, for example, Kapton ® CR has a life endurance in excess of 100,000 hr (11 1/2 years), compareed to 200 hours for Kapton ®HN.
		Choose from a veriety of width - from 3.0mm to 1,200mm - in 25 micron thickness.
		Kapton ®, Mylar ®, Teonex ® are registered trademarks of DuPont Teijin Films.
	www.pleo.com /dupont/kapton_cr.htm (428 words)

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