



Zahn Dip Viscosity Cups (ASTM D4212)
Immersion viscosity cups measuring efflux time — fast on-site and shop-floor checks per ASTM D4212.
Overview
Zahn cups are immersion-type viscosity cups — fast and convenient for on-site or in-line checks. You simply dip the cup into the liquid, lift it out and time how long it takes to drain through the bottom orifice; the efflux time (seconds) reflects the sample's viscosity. With a handy wire loop and a durable stainless-steel body, the Zahn cup is a familiar tool for quick viscosity control of paints and inks. The set comes in several sizes (#1 – #5) for different viscosity ranges, per ASTM D4212. All BYK‑Gardner instruments supplied by K&K carry a 12-month manufacturer warranty.
Key Features
- Immersion type — fast on-site and in-line checks
- Measures viscosity via efflux time (seconds)
- Durable stainless-steel body with a handy wire loop
- Several cup sizes (#1 – #5) for different viscosity ranges
- Simple, no power required
Key specifications
Specifications
Viscosity measurement
| Method | Dip cup, efflux time |
| Cup sizes | #1 – #5 |
| Material | Stainless steel |
| Warranty | 12 months |
Compliant standards
Where it fits
Paints & coatings
Printing inks
On-site checks
Shop floor
Scope of Supply
- Zahn cup (per chosen size) with wire loop
- Manual
Video
Watch demos and how-to guides for BYK-Gardner instruments on the manufacturer's official YouTube channel.



