... with good sealing.Its material is imported, which consists of paraffine, special preservtive, filler, synthetic fiber.Application Instruction ... and sagging.(Manual painting: 10-12 square meter pipeline area/ per primer. Machanical spraying: 18-20 square meter pipeline area ... with good sealing.Its material is imported, which consists of paraffine, special preservtive, filler, synthetic fiber.Application ...