Andy Dingley wrote:
Merryterry wrote:

Can anyone suggest the best way of sealing in rust stains from cut
nails that were used to fix the skirting in my 30 year old house?

Scrub off what you can, then apply shellac knotting to seal. "Knotting"
is just low-grade shellac - always handy stuff to use as a sealer over
anything a bit grotty.


Just use any old oil paint you have lying around. Shellac isn't all that
water resistant