Use of commercial aerosol lubricants
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Use of commercial aerosol lubricants
Are commercial aerosol lubricants like WD-40 used for applications such as lubricating cabin and cockpit seat tracks?
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Actually WD-40 is a Water Dispersant, and took 40 recepies before they got it right; WD-40 is useless as a lubricant. There are a whole lot of good lubricants out there. The best ones are dry film lubricants for your applications on seats and such. Won't smell, and won't pick-up dust, lint, and dirt, and won't mar your pant legs.
Graphite in spray cans,( black in color) Teflon in spray cans ( colorless) are excellent, and widely used.
Cheers,
Graphite in spray cans,( black in color) Teflon in spray cans ( colorless) are excellent, and widely used.
Cheers,
Thread Starter
Actually WD-40 is a Water Dispersant, and took 40 recepies before they got it right; WD-40 is useless as a lubricant. There are a whole lot of good lubricants out there. The best ones are dry film lubricants for your applications on seats and such. Won't smell, and won't pick-up dust, lint, and dirt, and won't mar your pant legs.
Graphite in spray cans,( black in color) Teflon in spray cans ( colorless) are excellent, and widely used.
Cheers,
Graphite in spray cans,( black in color) Teflon in spray cans ( colorless) are excellent, and widely used.
Cheers,
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It is widely believed one of the largest constituents of WD-40 is fish oil - which is the reason why the spray is water-repelling, and leaves a protective coating. As a lubricant, it is on the lower levels of lubricating ability.
There are better seat slide track products available. Look for some of the door lock spray lubricants, that leave a lubricant coating.
My personal choice is the spray lubricants that contain PTFE and Molybdenum Disulphide. MoS2 is well known for its dry lubricating abilities.
Greases are constructed from heavy-consistency metallic soap fillers, that contain mineral oils suspended in the filler material.
Over time (a month or two) the oils will drain away from the metallic soap filler, which then can no longer carry out its job of lubrication.
There are better seat slide track products available. Look for some of the door lock spray lubricants, that leave a lubricant coating.
My personal choice is the spray lubricants that contain PTFE and Molybdenum Disulphide. MoS2 is well known for its dry lubricating abilities.
Greases are constructed from heavy-consistency metallic soap fillers, that contain mineral oils suspended in the filler material.
Over time (a month or two) the oils will drain away from the metallic soap filler, which then can no longer carry out its job of lubrication.
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It is widely believed one of the largest constituents of WD-40 is fish oil - which is the reason why the spray is water-repelling, and leaves a protective coating. As a lubricant, it is on the lower levels of lubricating ability.
There are better seat slide track products available. Look for some of the door lock spray lubricants, that leave a lubricant coating.
My personal choice is the spray lubricants that contain PTFE and Molybdenum Disulphide. MoS2 is well known for its dry lubricating abilities.
Greases are constructed from heavy-consistency metallic soap fillers, that contain mineral oils suspended in the filler material.
Over time (a month or two) the oils will drain away from the metallic soap filler, which then can no longer carry out its job of lubrication.
There are better seat slide track products available. Look for some of the door lock spray lubricants, that leave a lubricant coating.
My personal choice is the spray lubricants that contain PTFE and Molybdenum Disulphide. MoS2 is well known for its dry lubricating abilities.
Greases are constructed from heavy-consistency metallic soap fillers, that contain mineral oils suspended in the filler material.
Over time (a month or two) the oils will drain away from the metallic soap filler, which then can no longer carry out its job of lubrication.
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I think I know where this thread might be headed! Are you trying to link the demise of MH 370 with a possible explosion due to the reaction of a cockpit crew oxygen leak with a hydrocarbon source like WD40?
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I think you might be right. I'm not thinking explosion (that would not be consistent with any of the data or physical evidence), I'm thinking fire - oxygen enriched atmosphere, cockpit foot heaters, seat track grease or other hydrocarbon-based lubricant, ...
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I'd looked up the safety data sheet for WD-40 a while back, by weight it's >60% naphtha (petroleum), hydrodesulfurized heavy (CAS #64742-82-1). Naphtha has basically the same flash point (47 °C) and upper/lower flammability limits (1. 4 - 7. 6 % (V)) as petrol (motor spirit, gasoline).
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I think it unlikely that a gradual leak in the 02 system could cause the problem. The equipment cooling/aircond would disperse that limited amount of 02 very quickly. Though you couldn't argue that a major leak might not cause a reaction "if all the holes in the cheese lined up"!
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I think it unlikely that a gradual leak in the 02 system could cause the problem. The equipment cooling/aircond would disperse that limited amount of 02 very quickly. Though you couldn't argue that a major leak might not cause a reaction "if all the holes in the cheese lined up"!
And it takes far less oxygen (by weight or number of molecules) to raise the concentration of an 8,000,foot atmosphere to 23% than would be required to achieve the same result at sea level.
However, as interesting as that might be it is all largely irrelevant if WD-40 or a similar compound isn't present. Which brings me back to my original question:
Are commercial aerosol lubricants like WD-40 used for applications such as lubricating cabin and cockpit seat tracks?
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I might add, WD-40 is regularly used as a tractor diesel/industrial diesel engine, aid to cold starting, in place of the ether-based starting aids.
It is quite flammable - but no more so than diesel - and it has the benefit of not burning explosively as large doses of ether do, which quite often results in broken piston rings.
Well, I can't answer that question precisely - nor can I definitely say it's in use in Malaysian aviation - but it sure looks like the Bulgarian agents for WD-40 are happy to recommend it for aviation purposes. 
http://bomarbg.eu/wd-40_aviation.html
It is quite flammable - but no more so than diesel - and it has the benefit of not burning explosively as large doses of ether do, which quite often results in broken piston rings.
Are commercial aerosol lubricants like WD-40 used for applications such as lubricating cabin and cockpit seat tracks?
http://bomarbg.eu/wd-40_aviation.html
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Not come across it in use on AIRBUS/BOEING for any applications , don't believe its in the list of materials for either. Recall its use in the military at least 25 years ago , spraying it down Buccaneer engines after low level sea trips .Got stopped when it was found to attack different rubbers and insulation on cables