Have become fairly adept at applying decorating caulk were needed but even where the application has been good and subsequent paint lines good, I find that after 2-3 years, the caulk starts to crack (or more accurately speaking lift) from the edge were the plaster meets the Upvc fitting. … e.g external windows & doors…don’t have the problem anywhere else.
It’s a fairly neat lift…virtually a straight line…and where the lift is pronounced, you can tear it back in a straight line. In other areas it just shows as a hairline.
I’m guessing its to do with differing expansion rates between the plaster and Upvc?
Question is…how to fix that properly and as permanently as possible?
Whilst I’ve upgraded my filters, primers and paints and tools the last year, I’ve never been in the slightest bit selective with caulk.
… Is there a difference between differing types of caulk?..
…Is there one that’s ‘THE’ one to use? …
…Or indeed is there a special format one for this specific application?
…Is there a prep technique that can head off this lifting / cracking … or at least minimise it?
Wading through our kitchen refurbishment and want to head off this sort of stuff for future.
As always your help and input towards OCD hell is appreciated.