With Improper Care of Plastic Windows, Various Deformations May Appear on Them, The Service Life Will BEPE WILL BECOME UNATTRACTIVE. Proper Care of the Windows Will Allow Them To Please You For a Long Time. This Article Describes The Basic Rules for Caring for Plastic Windows. FIRST of All, You NEED to Monitor the Cleanliness of the Windows. IF THEY ARE POLLUTED, WASH THEM WIPY SOAPY SOLUTION OR SPECIAL DETERGENTS FOR PLASTIC Windows, Process All Rubber Seals with Silicone Lubricant and Lubricate the Fittings.