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what heat resistant lubricant is best for moving head lights


marklew productions

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You shouldn't need much in your career so ask Martin where they get theirs from,or buy some from Martin. I've also heard of pure graphite powder being used -usually available from locksmiths in tiny bottles.

 

Added

Solid lubricant like Molybdenum sulphide, PTFE, or graphite will likely be what Martin want, they are dry to apply so don't accumulate dust from the fanned airstream so they don't get stiffer with age.

 

Let google loose on "solid dry lubricant" and " solid powder lubricant"

 

The are used by locksmiths because they don't accumulate water that can later freeze, because there is no oil present there is nothing for dust to stick to.

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We use a brand called Versalube….

http://www.wellworthproducts.com/index.cfm?fuseaction=product.display&Product_ID=1647

 

I can't find the exact one we use, but as far as I'm aware it's the same as the link above but in a toothpaste-style tube http://www.blue-room.org.uk/public/style_emoticons/default/smile.gif

 

We use it for greasing linear accuators, bearings, and just generally anything that needs a bit of lubrication (with exception of CMY colour modules). The only bad thing with it is that after 2-3 years of being sat in a hot fixture it can clog up, so it needs cleaning off with this, and then reapplying every now and then. But we use it on Vari*Lite and Martin fixtures and it works a treat.

 

Just a tip, use it VERRRRRRRY sparingly! *Voice of experience*…. http://www.blue-room.org.uk/public/style_emoticons/default/wink.gif

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pure graphite powder being used

 

Hi

 

Graphite-based products are absolutely the last thing you want to use inside a moving head. Or anything that uses electricity. Not only does graphite powder conduct, the heat causes the carbon to become very sticky.

 

In one of my containers I have 18 Wybron Nexera CMY modules and a followspot that was destroyed by a technician using graphite to lube the moving bits.

 

All the best

Timmeh

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I think the real answer to the original question is "lots".

 

Dry graphite is conductive so best not used near logic boards or high voltage areas, but can operate at 450 degrees Celsius or higher.

 

Any oily substance is going to attract dirt and dust. And even when high temperature oils or greases are used, the contaminants that stick to them can burn and cake up into a very hard surface.

 

Silicone oil tends to creep everywhere and is reputed to cause problems with low voltage contacts like buttons, interconnects and DIP switches.

 

The ideal lubricating regime for any light is to use the "area appropriate" stuff sparingly on each critical point if needed.

 

I've seen followspot iris assemblies absolutely destroyed by the reckless application of aerosol graphite based lubricants where the carrier itself seems to be a big factor in the damage. But I'm not sure I know of ANY lubricant that is suited to the leaves of an iris. If it's stiff then maybe it needs a proper service.

 

I should add that WD40 isn't really fit for anything. I've tested it on various things in the past, but even in it's intended moisture displacing capacity it's not very good. It's better just to keep the water out in the first place.

 

However I did once apply WD40 liberally to a very annoying old Vari-Lite knowing full well it was going to be an absolute smoke-fest. And it was. It was hilarious. It was absolutely intentional too. :rolleyes:

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Irises and shutters are nearly always permanently lubricated using special coatings on the metal.

 

If you've scratched that off, then it goes in the recycling and you get a new set.

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Getting rid of any old dust loaded lubricant is your first priority. Lint free swabs and the right solvent are a good start. Replacing the old lube with fresh is possibly done as my Hassleblad repairer friend with a fine hypodermic with needle putting only the smallest spot exactly where it is wanted. If Martin say Teflon lube then that's what you should use, and the best place to start sourcing it is Martin spares dept.

 

Just remember that as soon as the new lube gets dusty it will thicken til parts no longer move freely.

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