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Author Topic: Viscosity cup Zahn #2 or Dupont M50  (Read 3365 times)

Offline kcwis

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Viscosity cup Zahn #2 or Dupont M50
« on: June 20, 2017, 06:02:28 pm »
Are they the same spec?  I have a M50, the Urethane primer calls for a Zahn #2
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Offline zieg85

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Re: Viscosity cup Zahn #2 or Dupont M50
« Reply #1 on: June 20, 2017, 09:32:40 pm »
Quote from: kcwis on June 20, 2017, 06:02:28 pm
Are they the same spec?  I have a M50, the Urethane primer calls for a Zahn #2

Close enough probably but not the same.  There are so many versions of Zahn #2 viscosity cups and they all measure differently unless you get the ultra calibrated $200 ones like I carry for work
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