Lubricating ES bulb threads.

[Piratepete]

Hi Guys
Client of mine has loads of these old 100 Watt ES spot fittings. Called me in to fix. Most OK, just needed screwing in further but a lubricant would help. They're blooming tight. Any recommendation considering how hot these get? Considered recommending a spot of vaseline, but that's flammable and an insulator, some wiser heads than mine might have other ideas!

Cheers

Pete

 

[Spoon]

Probably a dumb question, but are you sure the fittings are rated for 100W lamps? Most I see now-a-days are 60W.

 

[ian.settle1]

You could perhaps try a little silicone grease, as used by plumbers. It's not conductive and I think that it's stable to fairly high temperatures.

I don't think that a conductive lubricant would be a good idea in case it got onto the insulator at the base of the lamp.

Well I think a conductive lubricant would be a very good idea otherwise the lamp would not work

 

[Knobhead]

Vaseline or any grease will bake hard. Dry graphite spray so long as it kept clear of the cap insulator should be OK.

First I’d be checking the size of the ES on the replacement lamps.