Description
The Viscosity Cup ISO 2431 is manufactured from anodised aluminium with a fixed stainless steel nozzle, engineered to meet the rigorous demands of paint and coating quality control. It provides customers with a standardized, reliable method to measure the flow‑time of coatings, enabling accurate determination of kinematic viscosity and ensuring repeatable coating performance across batches.
Whether used in laboratory testing or on‑site at production facilities, this cup is a cost‑effective, robust tool for viscosity control — indispensable for paint manufacturers, coating applicators, and quality assurance departments.
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How it Works
- Secure the ISO 2431 Viscosity Cup on a tripod or suitable stand, making sure it is perfectly vertical and level.
- Cover the nozzle with your finger to stop the flow temporarily,
- Pour the liquid into the cup up to the specified fill level, then level the surface of the fluid with a glass plate or straightedge.
- Remove your finger from the nozzle and start a timer as the liquid begins to flow out.
- Measure the flow time until the stream of fluid stops (flow break).
- Convert the measured flow time to kinematic viscosity (cSt) using the conversion chart or disc, under controlled temperature conditions.
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Key Features & Benefits
- ISO 2431 / DIN / EN / ISO compliant — ensures standardized viscosity measurement, supporting quality control protocols and regulatory compliance.
- Multiple nozzle/orifice options (Ø 3, 4, 5, 6, 8 mm) — enables flexible measurement across a wide range of viscosities, from thin solvent‑borne coatings to heavier high‑solids or high‑viscosity coatings.
- Durable construction — anodised aluminium body with stainless‑steel nozzle guarantees longevity and resistance to wear, solvents or cleaning procedures.
- Traceability & calibration readiness — every cup can be supplied with a factory calibration certificate on demand, supporting documentation and traceable quality control.
- Simple, quick test method — fast flow‑time measurement with stopwatch, allowing efficient QC testing on multiple batches or production lots.
- Compatible with standard cup stands & supports — ensures stable and reproducible test setups in labs or production environments.
- Cost‑effective viscosity control — provides an economical yet reliable tool for routine QC, formulation checks and batch-to-batch consistency verification.
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Technical Specifications
| Feature | Specification |
|---|---|
| Material | Anodised aluminium cup with fixed stainless steel nozzle |
| Orifice / Nozzle Diameters | Ø 3 mm, 4 mm, 5 mm, 6 mm, 8 mm |
| Calibration / Traceability | Optional factory calibration certificate on request |
| Applicable Standards | ISO 2431, DIN / EN equivalents |
| Typical Use | Viscosity measurement (flow time → kinematic viscosity) |
| Accessories (optional) | Cup stand / tripod, stopwatch, conversion chart (flow time → cSt), cleaning kit, calibration oils (if required) |
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Art. No Ori Ø Range Material Weight DxWxH
|
CSTVF2048 |
3 mm / 0,12 “ |
7–42 cSt |
Aluminium |
337 g / 11,89 oz |
92×92 x85 mm / 3,6×3,62×3,35 “ |
|
CSTVF2049 |
4 mm / 0,16 “ |
34–135 cSt |
Aluminium |
337 g / 11,89 oz |
92x92x85 mm / 3,62×3,62×3,35 “ |
|
CSTVF2183 |
5 mm / 0,2 “ |
91–326 cSt |
Aluminium |
337 g / 11,89 oz |
92x92x85 mm/ 3,62×3,62×3,35 “ |
|
CSTVF2050 |
6 mm / 0,24 “ |
188–684 cSt |
Aluminium |
337 g / 11,89 oz |
92x92x85 mm / 3,62×3,62×3,35 “ |
|
CSTVF2051 |
8 mm/ 0,31 “ |
600–2000 cSt |
Aluminium |
337g / 11,89 oz |
92x92x85m m/ 3,62×3,62×3,35 “ |
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Accessories
CSTCL0030 | Calibration Certificate (available on request)
CSTVF2061 | Tripod Stand for Viscosity Cups
CSTVF2062 | Ring Stand for Viscosity Cups
CSTVF2067 | Temperature Control Jacket for DIN & ASTM
CSTVF2068 | Temperature Control Jacket for ISO & AFNOR
CSTDI0076 | Stopwatch
CSTVF2053 | Viscosity Conversion Disc
CSTTE0027 | Precision Thermometer
CSTF2063 | Glass Plate GP20
CSTVF2061 | Tripod Stand for Viscosity Cups
CSTVF2062 | Ring Stand for Viscosity Cups
CSTVF2067 | Temperature Control Jacket for DIN & ASTM
CSTVF2068 | Temperature Control Jacket for ISO & AFNOR
CSTDI0076 | Stopwatch
CSTVF2053 | Viscosity Conversion Disc
CSTTE0027 | Precision Thermometer
CSTF2063 | Glass Plate GP20
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Manufacturing and Standards
The TQC Sheen Viscosity Cups ISO 2431 are manufactured in the Netherlands by Industrial Physics, a leading provider of coating test equipment. Each cup is produced under strict quality control and is fully compliant with ISO 2431 and equivalent DIN / EN standards, ensuring reliable, standardized, and traceable viscosity measurements for paints, coatings, and other liquid materials.
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Applications
The Viscosity Cup ISO 2431 is suitable for:
- Viscosity measurement of paints, varnishes, coatings and related liquid materials
- Quality control in paint and coating manufacturers
- Pre‑application viscosity checks in coating workshops, spraying booths or production lines
- Batch consistency checks, QA/QC documentation, formulation verification
- Laboratories and R&D departments evaluating new coating formulations or monitoring drying / application behavior
