1. Surf Excel | Detergent Bar is a superfine bar that removes tough stains in a jiffy and leaves no residue on your clothes. Being a superfine and fluffy powder it dissolves easily and reaches the stain and removes it easily. 2. What is the purpose of Surf Excel | Detergent Bar? washing bar tackles tough stains while being packed full of uplifting fragrance! Surf powder offers brilliant cleaning and excellent fragrance, with outstanding results even in cold water. It has brilliant cleaning power and is great on white clothes.