On 21/01/2021 14:58, Davidm wrote:

I've got a couple if uPVC double glazed windows which have become very
drafty around the opening casements. It seems at the the "nylon
looking" seal in the frame, which the casement frame closed onto, has
lost it's elasticity and is not sealing the gap. The windows are about
30 years old, BAC I think. Is it possible to replace these seals, and
are replacements available? Anyone done this and know if it's easy or
don't even try? Any other solution (apart from replace the whole
window)?

On a warm day in Autumn I spend a morning applying cheap furniture
polish to the DG seals on the openers and the frames, spraying the
polish onto a rag and rubbing that along the seals. Not only does this
remove a year's crud, but the solvents in the polish help soften and
swell the seals, hopefully making them more pliable and more likely to
seal properly. If yours haven't been done in this fashion for 30 years,
it might take a few applications for this approach to work, but it is
'cheap and cheerful' DIY...


--
Spike