First flush the vehicle with clean water. Remove dirts and stains on car body with neutral car washing luqid. Blow off the water and keep car body dry. Unpack the product, dip suitable amount with sponge and spread thinly on the car body. Wait for drying (5 to 10 mins in Summer, 15 to 20 mins in Winter) and wip with soft clean towel. Operation points: Before operation, it is suggested to remove stains, water scale and iron powder on car paints with clay.  For engine hood and vehicle doors etc., the operation needs to be done step by step. This product only has the function of polish, not suitable for removing deep scratches. if scratch removing is necesary, please first use polishing agent. Please use specialized sponge and wiper,