Question 1

What viscosity is paint?

Accepted Answer

Spray paint: 15-25 seconds (Ford cup #4). Brush paint: 60-80 seconds. Thicker for vertical surfaces.

Question 2

How is paint viscosity measured?

Accepted Answer

Flow cups (Ford, Zahn), viscometers. Time for paint to drain through standard orifice. Seconds.

Question 3

What's the difference between dynamic and kinematic viscosity?

Accepted Answer

Dynamic viscosity (Pa·s, cP) measures flow resistance. Kinematic viscosity (m²/s, cSt) is dynamic viscosity divided by density, used in flow calculations.

Question 4

How does temperature affect viscosity?

Accepted Answer

Liquids generally become less viscous (thinner) when heated. Motor oil ratings (like 10W-40) indicate viscosity at cold (W) and hot operating temperatures.

Paint Viscosity Converter

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