Thompsons tdsb5l drive seal is a high performance acrylic coating specifically designed to enhance the appearance of tarmac drives and obliterate existing stains its quick drying formulation means that the drive can be back in use in as little as 4 hours once dry thompsons drive seal reaches its optimum performance after a few days and gives an attractive low sheen slip resistant finish which provides unrivalled protection from weather damage and prevents oil and petrol spills leaving unsightly