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- 29 Aug 2020
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Hi when I wash my windows the black rubber seal is leaving black marks on the cloth and subsequently the white upvc frame.
I understand it's about 20 years old so it's obviously started to perish but it still feels soft and flexible . Is there anything I could put on the rubber seal to stop it giving off black stuff ?
I understand it's about 20 years old so it's obviously started to perish but it still feels soft and flexible . Is there anything I could put on the rubber seal to stop it giving off black stuff ?