Perfect for curing oxidized rubber items such as yellowing soles and midsoles on sneakers. Will restore yellow rubber back to its original color.How to Use Angelus Sole Bright Using a sponge or brush apply a light coat to yellow or hazy areas (oxidized) parts of soles. Cover in a clear wrap to help quicken the process and and to prevent the product from drying out. Avoid contact with non-rubber materials as it may burn them. Leave in the sun or under a UV lamp for up to 2-6 hours. Periodically check to make sure no dripping or scarring has occurred. For yellowing on white soles, the first application will turn it white. On "icey " soles, more applications may be needed. If product comes in contact with skin, wash affected area with soap and water. In case of eye contact or ingestion, seek medical help immediately.