Is there any maintenance or cleaning required?

The best method of cleaning your outdoor vinyl banner is to lay it flat (if possible) on a clean area, table or floor. It is recommended that you use a mild dishwashing liquid and warm water to rinse. Do not use any harsh abrasive or petroleum type cleaners. Clean and dry each side before storing. You must ensure it is completely dry prior to roll up and storage. Place your banner back in box and store it flat, not vertical. If it is standing up vertically, it may wilt and warp causing wrinkles over time.