P411 is a high quality acrylic sealing primer ideal for “wet on wet” application over all metals O.E.M. (E-COAT) cataphoresis panels and plastic bumpers and parts. Easy to use with excellent final finish. You save time and money. The mixing ratio is 4 parts primer, 1 part HARDENER FOR PRIMERS H729 Normal and 1 part 740 Acrylic thinner Normal. Requires one coat 15-20 μm dries fast and can be re-coated within 20-30 minutes.