Hundreds of colors and patterns designers love to work with sunbrella fabrics because they are available in hundreds of. Make a solution using 1 cup of bleach, ¼ cup of little soap for each gallon of fresh water. How to Clean and Scotchguard Outdoor Sunbrella Fabric • rinse the fabric thoroughly to remove all soap residue. What is the best way to clean sunbrella fabric . Spray and leave the sunbrella for some time to. Mix up a solution of mild soap and clean water and spray on the spill. For general care of sunbrella upholstery fabric on outdoor furniture, brush off any loose dirt from the fabric and prepare a solution of 1/4 cup mild soap per gallon of lukewarm water. As summer wraps up, you might be looking at your lovely outdoor furniture with a fond heart, but a critical eye. Wax (candle) apply heated iron over towel. Disinfecting or sanitizing often requires the use of strong chemicals that might damage other fabrics. How to clean sunbrella fabric: How to cle...