Should I oil wood before or after caulking the gap?

[leadem]

Hi,

I’ve stripped my window frames back to bare wood and patched around them with new plaster, leaving a small gap for movement. I’m going to fill the gap with Toupret Fill-Flex and then oil the wood with Rubio oil.

But what’s the right order for the oil?
Do I oil the wood first, then caulk? Or do I caulk onto the bare wood, let it dry, and oil at the end?

I’m worried the mastic won’t stick properly if I oil first.
N
Thanks a lot!

 

[accelerator]

I'm no expert but personally I would oil the wood first, then let it dry fully, and possibly give a light sand where the Fill-Flex will adhere. The oil should seep into the wood, and you won't actually get an oily surface, it will be dry.

If this doesn't work, don't blame me!