Best Product for Lubricating Locks on uPVC Doors Post your questions and get answers concerning many areas of this subject

[polypody]

What would be the best lubricant for lock mechanism on uPVC doors please? The window company that supplied the doors suggest WD-40 or silicone spray but I read somewhere that use of WD-40 is not recommended & graphite powder is preferable.

[welsh brickie]

lithium grease,or you can use Vaseline

[ellanvannin54]

use Graphite grease (its a powder). Use WD-40 or Vasaline they will work but they attract dirt and you will then get more problems with stiff or sticking locks!

[polypody]

Thanks for your help. I've now got some graphite powder & that has improved the lock operation.

[Skid Sprocket]

I would use silicone spray not WD40.