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Petrol resistance - 2k PU system

Q. We would like to know about the Petrol resistance of PU lacquer (2 K) system, suggest the test method to evaluate the performance in Petrol resistance test.

R S Narasimhan
Finishing Manager - Chennai, Tamil Nadu, India
2004

A. Dear sir,

The double rub test should be okay for this. Soak a cotton cloth with petrol, vigorously rub over the cured coating several times. Rubbing twice is a double rub. Calculate the number of double rubs required to soften the coating. Normally 50 double rubs is a pass. If you put stringent Quality control, then 200 double rubs may be okay.

Regards,

Dinesh [last name deleted for privacy by Editor]
- Chennai, Tamilnadu, India
2004

Q. Which standard is this petrol rub test taken from? Which product labels should use this test?

kiran jose
- United kingdom
September 15, 2015

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