Viscosity of Aqueous Coatings

[Kaoticor]

Dear all,

I'm looking for a conversion sheet, or at least a formula, and I was hoping one of you might have it.

- Need to convert viscosity readings from a Zahn 4 to a Zahn 3 cup. (I have a recommended viscosity with a Zahn 4 but need to convert it to a 3).
- Need to know how much viscosity should be expected to change with temperature differences using a Zahn 3 (for example, a 17-19 second coating at 75 degrees. What does that translate to at 85 degrees?)

Thanks for any assistance you can provide!

-K

 

[Cold]

Do you know which series of cup you have( e.g. Signature, EZ, etc.) ?

 

[Kaoticor]

Do you know which series of cup you have( e.g. Signature, EZ, etc.) ?

EZ series

Thanks

 

[Cold]

This will be much easier and informative:

Gardco :: Viscosity Cup Equivalent Chart

Follow the link and it should have the comparison you are looking for. If you have any more questions, please post and I'll try to help out.


Best Regards,



Cold

 

[Cold]

NM you have to buy it. I have one hanging on the wall in the lab, hold on.

Ok here you go:

#4 EZ = #3 EZ
17.1 = 21.3
17.7 = 22.2
18.4 = 23.0
19.1 = 24.0

 

[Cold]

At 85F you will see faster times. Many coatings as well as other fluids do not have a linear correlation to temperature. It will usually have curvature to it. The best place to obtain temperature info will be your coating manufacturer.

 

[Kaoticor]

Thanks for the info!

-K