Cleaning Polycarbonate

Clean with warm, mild soapy water, such as dish soap. If any dirt remains, wipe with soft cloth. Do not scrub, scrape or use solvents. Rinse and dry with soft cloth. Cleaning will extend sheet life.
The best approach is to simply hose down every week. No soap required. See complete instructions and Chemical Resistance

Polycarbonate Greenhouse and Sunroom Building Supplies