A google search shows some very mixed information ("key the
surface"/"don't, whatever you do key the surface") so I thought I'd
ask here to see if anyone has any first or good second-hand
This is a white plastic window frame which overlooks our garden and is
a highly conspicuous blight since it's a natural draw for the eye...we
want to minimise the impact by painting the frame a dull colour
compatible with the brickwork, the neighbour has already given his
Would keying be best? And/or are there specific primers which enhance
adhesion? A non gloss finish would be prefered.
Many thanks for any insights....
<bob> wrote in message >A google search shows some very mixed information ("key the
Making an assumption that the window belongs to neighbour, is on a
party wall overlooking your land...
Why not consider a timber framework attached to the brickwork around
the window, masking the pastic (but not the glass), and paint THAT
instead? It could then be removed at some time in the future if
needed, without too much damage...?
Don't use primers, undercoats or water based paints on the plastic - simply
From memory. Use ordinary, good quality solvent based gloss directly onto
the plastic - after first washing it down with sugar soap and 'soft'
scouring pad (this will form the 'key' for the paint) - and give it a couple
With regards to your original statement on the non-use of gloss, you could
try an oil based egg-shell paint, but I don't know if that would be as
successful as I've never used that on plastic.
You don't need any key - the paint solvent dissolves into the
surface of the uPVC and effectively solvent-welds the paint on.
At least, this is the case with the high organic volatiles paints
which became illegal to manufacture since January this year.
I haven't tried their low organic volatiles replacements, and I
could well imagine they might not work on uPVC as well. I did
find some high organic volatiles stock in a paint merchants
(Brewers) a few months ago by getting the guy to search the shelf,
but it's probably getting impossible to find now, and you won't
find it in any of the DIY outlets - they cleared out their stocks
of it last year.
[email address is not usable -- followup in the newsgroup]
It's around 12 years now since I was involved with this sort of thing (I
find other things to do in my retirement) and I take your point on the
'keying' of the plastic..
But if I remember correctly, one of the problems we used to have was a
surface 'film' that appeared on some plastics and exuded by the plastic
itself thus preventing good adhesion of the paint.
Again if I remember correctly, a wash down with sugar soap and aforesaid pad
seemed to work a treat on those - and this was suggested by the paint
suppliers technical rep who for a change, was right that time.
many thanks to all for responses.
I think the added wooded frame though ingenious would be tricky. Our
neighbour (yes it's a party wall) will be a stickler for having no
disernable change whatsoever to his 'view' through the wiindow and
this, a frame with fairly elaborate contours, would be difficult to
mask without him seeing some slight visual effect, parallax problems
I wondered about the keying and sugar soap makes sense so we'd go for
that. Pity about the lack of highly solvent paints.
Oddly enough, we bumped into the neighbour today who is now huffing
and puffing about the whole idea (lol) so it might be back to the
drawing board anyway....
Yes, this has been a long-standing plan and is exactly what we're
sorting out now. The OH gets a lot of help from her neighbour and
doesn't want to upset him too much so that screen will have to be
significantly forward from his window (sole light-providing window to
A bit of a compromise really but if we get that sorted+ some darker
colour on the window frame that should help.
Have a look at Freecycle. It's a yahoo group, or rather a whole lot of
groups. 2 words - free and -cycle from recycle, People join then post
OFFER: (something they no longer want) and WANTED: (Something they'd
like) and it's great for leftovers and unwanted tools, furniture, all
sorts of things that are too good to throw into the landfill that
someone else may want.
If you were to join and ask if anyone has some of that paint, well, you
never know what leftovers someone has on a shelf in their shed.
A L P
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