Our uPVC window frames are in need of a good clean on the outside with
some areas of what looks like mildew outside the bedroom window which is
always left slightly open.
Other than WD40 and an angle grinder, is there a recommended cleaner?
I've seen Stardrops with ammonia and Cif mentioned elsewhere.
You can get uPVC cleaner spray from a PVC window wholesaler in a
local industrial estate for very little, and this works very well.
Otherwise, try washing-up liquid in warm water and a soft (plastic)
brush. (Use a good washing-up liquid like Fairy, and not some
cheap/weak/eco type which will just waste your time.)
For encrusted dirt, wet it with this and leave a while for it to
soak through the dirt before brushing off, and rinse the brush
often to prevent loosened dirt in it from scratching the polished
Never use anything abrasive - this makes the surface get dirty
much faster, and more difficult to clean in the future. Also, some
solvents can damage the surface.
[email address is not usable -- followup in the newsgroup]
I find the missus's nail varnish remover works well, but it is melting the
plastic ever so slightly (it contains acetone) so you have to work it
quickly, as it were. I tried some acetone on its own, and that is a bit too
strong - one day I'm going to find out the best amount of water to add to it
to get the balance right.
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