Nilco H5 UPVC Cleaner is a neutral, solvent enhanced, semi-abrasive aqueous paste cleanser for un-plasticized [rigid] polyvinyl chloride PVC. Where to use On uPVC surfaces including single and double glazed window fittings and doors, garden furniture etc... This product is also a very effective external automotive glass cleaner and light-duty metal polish. Where not to use Plasticized PVC, soft plastics, bathroom fixtures, and fittings.