Condensation on Cylinder Locks!

Frank99

I notice my cylinder upvc door lock barrels are soaking wet in the mornings, it looks like condensation is hitting the lock from the outside and traveling in around the cylinder, i have a cylinder on the front door and have recently changed it to Diamond version and condensation has never come through, the locks seem to fit flush.
Wondering if to use sealant on the outside but never known a locksmith to do this!:mad:

jk0

The condensation will be from moisture in the air of your house, hitting a cold surface, won't it?


Putting sealant round the cylinder won't help with that.

Aylesbury_Duck

As jk0 says, it's not condensation travelling in from outside, it's warm moist air in your house condensing on the coldest available surfaces, one of which is the lock because it forms a thermal bridge between the cold outside and the inside, being made of a good thermally conducting material, metal. There's not much you can do about it. Adding sealant certainly won't help.

chrisw

The metal lock barrels are an excellent conductor of heat, so if the outside face of the barrel is sat in outdoor temperatures of say 5 degrees, then the inside face will be at a similar temperature. Touch it on a cold day and you'll notice it.

This will cause condensation from the warmer room to easily form on it.

No way of stopping it really and it shouldn't cause any harm if the lock is properly lubricated.

Frank99

Okay, this all makes perfect sense now but as i don't get it on my front door with the Ultion cylinder i thought there was a problem, i hope there is no chance of these locks rusting over time with the wet.

Gloomendoom

An occasional spray with with WD40 should stop them rusting internally.