PS-570 4:1 Filler Primer (GREY) 4L + PSH-507 Filler Primer Hardener 1L

High Quality 2K Urethane Primer (Grey) 4L

Mixing ratio
Base : Hardener : Reducer = 4 : 1 : 1 (by vol)

Mixinig viscosity
15-20 sec. Viscosity(A+B+T) Ford Cup #4 at 77°F (25°C)

Drying time
Pot life 4 hours at 77°F (25°C) after mixing
Time to sand(20°C) within 2.5 hours
Time to sand(60°C) within 30 mins

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HIQ PSH-507 Filler Primer Hardener 1L Hardener for PS-570