I have some very dirty window frames on my new house. I have tried bleach
and it was no good, CIF was OK but hard work, I then tried T-CUT and it was
superb, much easier and made them look super.
Is there any long term problems known with using TCUT? I will make sure once
they are clean I wax them with Collinite 476 or Mer Polish after they have
I haven't a clue what's on them. They are black with dirt. Have tried
Bleach, CIF does work but it's difficult and I have even tried some UPVC
solvent stuff, smelled like pears. That worked but took ages, T_Cut was the
best to use overall. Would it not work if I polished or waxed on top to
prevent further dirt?
IPA alcohol is worth a try in these cases. It removes a moderate range of
organic stains and is relatively non disruptive to plastic. Tip - great way
to take finger marks and grease off electrical plates.
Managers, politicians and environmentalists: Nature's carbon buffer.
IIRC T-cut is an abrasive? - why not just use the stuff designed to clean
pvcu frames? - it's available from any windown manufacturer and is a
solvent, probably the same one used in nail polish remover.
It comes in litre bottles and it's about a fiver
BTDT years ago - no longer shiny plastic is far worse re getting dirty
and trying to clean it. Don't do it.
Since the standard detergents are failing you I'd be tempted to try
some stronger but less general removers such as hydrochloric acid
Some years ago I worked in a uPVC window/door factory and it was very
common for us to have to sand down frames etc. which were marked and
scratched in the cutting/welding section.
After final sanding with 800 grit discs, we used uPVC solvent and a
cream very similar to T-cut for polishing. The trick was buffing the
surface with a polishing disc after the abrasive clean. They used to
shine like new pins and stayed cleaner than the original unpolished
You could always try the 476S, makes the car much easier to clean and
lasts ages. Haven't tried it personally but I might do after reading
this, at the moment we use 'HG Powerful UPVC cleaner' or something
along those lines.
I have just waxed our car with Collinite 476 and it is superb. I am going to
buy some more specialist cleaners so as not to make the surface rough.
Perhaps the one I have just isn't up to the job. I did notice on the CIF
bottle I have it does say NON Abrasive so may give that a go first.
Thanks everyone for your help. I won't try the T_Cit although it was much
easier the long term problems I may incur won't be worth the ease of doing
it now. So CIF first, no abrasive, then a UPVC cleaner if that fails.
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