Viscosity measurement cup

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 1 April 2000




(2000), "Viscosity measurement cup", Pigment & Resin Technology, Vol. 29 No. 2.



Emerald Group Publishing Limited

Copyright © 2000, MCB UP Limited

Viscosity measurement cup

Viscosity measurement cup

Keywords: Weller Patents Development, Zahn, Viscosity, Measurement

A new Zahn No. 1 viscosity measurement cup has been introduced by Weller Patents Development of London (Plate 4).

The most widely used of the Zahn flow cups is said to be the No. 2 cup, for lacquers, clears, enamels and press side adjustment of flexographic inks. However, there are occasions with low-viscosity liquids when the time of efflux is too low for accurate readings. ASTM D 4212 states that this time should not be below about 20 seconds.

Plate 4 The new No. 1 Zahn cup completes Weller Patents Development's product range

As a consequence, Weller Patents Development has introduced the Zahn No. 1 cup to provide more accurate measurement for these products. This completes their range of Zahn cups, from No. 1 to No. 5. All of these flow cups are manufactured to the same high standards that are required to ensure accurate and repeatable measurement.

Details available from: Weller Patents Development. Tel: +44 (0) 181 788 6684; Fax: +44 (0) 788 4669.

Related articles