Patent ID: 8147917

Claim:
A manufacturing method for a sealing member for fuel, comprising the steps of: coating a fluororubber base surface of the sealing member for fuel with a paint composition which comprises a matrix comprising a fluororubber, a first particulate solid lubricant comprising a tetrafluoroethylene-hexafluoropropylene copolymer that can be melted, and a second particulate solid lubricant comprising a polytetrafluoroethylene having a molecular weight of 300,000 or less, and baking the paint composition after coated at a temperature which is higher than a melting point of the first particulate solid lubricant and lower than a melting point of the second particulate solid lubricant, whereby forming a sliding-treated layer coated on the base surface, wherein an amount of the first particulate solid lubricant is from 50 to 200 parts by mass for 100 parts by mass of the matrix, and an amount of the second particulate solid lubricant is from 5 to 30 parts by mass for 100 parts by mass of the matrix, based on dry mass.