My upvc window frames were fitted about 15 years ago. I am having problems on the inside where the individual pieces of plastic meet at right angles. There is a sealant in and around the joint. It is now discoloured and/or cracking and breaking away. Is it possible to clean it away completely and start again? I would be grateful to receive advice.
JSGJ
I am not familiar with sealant in the joints where the frames meet at a right angle, upvc joints are normally heat welded to form a fixed mitred joint, but presumably the old sealant can be removed and replaced with new sealant in the same way that old bath edge sealant can be removed and replaced.
Ah, I see, that makes sense.
I've had another look at my frames.In the kitchen the interior mastic / sealant is definitely between 2 vertical pieces of upvc in the bay window. It is a very thin film and I wonder if there is a chemical that I can buy to remove it? In the bath room it is between the main frame and a thin fascia piece where the frame meets the window ledge. In places it is quite thick and would scrape out but there are also areas that have just a thin film that is difficult to remove. Again is there something that I can buy that will remove this sealant?
JSGJ
Yes,
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