Viscosity Flow Cups ISO

Measuring viscosity is essential to ensure optimal paint performance, both during manufacturing and application. If the viscosity is too high, the paint may be difficult to apply. If it's too low, it can lead to uneven finishes or excessive dripping.

Understanding how viscosity behaves during the application process helps improve the final product quality and minimizes waste. The UNE ISO viscosity flow cup is the ideal tool for performing this measurement accurately and efficiently.

How Does a Viscosity Flow Cup Work?

The UNE ISO viscosity cup measures the time it takes for a fluid to flow through a standardized orifice. This flow time, expressed in seconds, provides a precise measurement of the fluid’s relative viscosity. The thicker the fluid, the longer it will take to flow.

This simple process gives you a quick reference to adjust your product’s properties according to your production or application needs.

Key Concept: Kinematic Viscosity

Kinematic viscosity is one of the most relevant metrics when it comes to viscosity measurement. It is the ratio between absolute viscosity (μ) and density (ρ) of a fluid. The formula is:

υ = μ / ρ

Common units of measurement include:

• m²/s
• Stoke (St)
• Centistoke (cSt)
  • (1 m²/s = 10,000 St = 1,000,000 cSt)

Why Choose the UNE ISO Viscosity Flow Cup?

• Accurate viscosity measurement.
• Complies with UNE ISO standards.
• Ideal for quality control of paints and varnishes.
• Easy to use and cost-effective.
• Suitable for both laboratory and production environments.

UNE ISO Viscosity Flow Cups and Other Options

While the UNE ISO viscosity flow cup is a great choice for many applications, other types of viscosity flow cups may be more suitable depending on your specific needs:

• Ford Flow Cup – Ideal for low-viscosity fluids such as inks and coatings.
• DIN Flow Cup – Commonly used in the paint and lacquer industry for high shear-rate viscosity measurements.
• Zahn Flow Cup – Best for low-viscosity liquids and inline manufacturing applications.

Each cup type is designed for specific viscosity measurement requirements. The UNE ISO flow cup is a versatile and widely accepted option, but if you need a more specialized tool, we can help you choose the viscosity cup that best fits your application.