How to remove wood preservative from upvc?

To remove wood preservative from uPVC, start by gently scraping off any excess with a plastic scraper to avoid scratches. Then, apply a solvent like isopropyl alcohol or a dedicated uPVC cleaner using a soft cloth, ensuring to test it on a small, inconspicuous area first. For stubborn stains, you may need to use a fine abrasive pad, but be cautious not to damage the surface. Finally, rinse the area with water and dry it thoroughly.