A2: To remain adhesive, here are some daily maintenance tips for your CIGS solar panel: 1. Wipe the panel stains using a clean, moist, soft, non-abrasive fine fiber or sponge when cleaning the components. 2. When disassembling the panel, remove any residue stains on the mounting substrate surface using industrial alcohol. 3. Replace the adhesive backing when you find the solar panel and the surface of the mounting substrate have gaps, which results in a decrease in adhesion during daily use.