I am building a bathroom cabinet from MDF which will get water splashes on
from the shower .
I have been told by this group to use yachting varnish to coat before
Will gloss or emulsion do alright and will I have to prep the varnish any
accept the paint. ?
Varnish will seal the surface so primer shouldn't be necessary. I would rub
the varnish lightly with fine grade abrasive, then apply undercoat, rub that
with fine grade abrasive, then finish with gloss. Emulsion is not very water
resistant although you can get bathroom/kitchen emulsion that is supposed to
be more moisture resistant than ordinary emulsion.
I put a babies changing cupboard made of MDF in our bathroom. First
undercoated with slightly thinned undercoat to basically seal MDF surface,
then two coats of mix and match emulsion (to match bathroom walls you
see....) then rollered with one or two layers varnish to seal. I thought it
wouldn't last being in the bathroom and being widdled on etc by babies etc,
but survived two offspring getting it wet and other numerous spillages
without any sign of MDF getting damaged. I revarnished the joints after
moving house and is currently being used by my brother and his smallest.
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