PFUND CRYPTOMETER
This practical instrument measures accurately the hiding power of paints, in relation to their thickness.
A small quantity of product is laid down on a flat opaque glass plate, black or white depending on the model, bearing a scale graduated from 0 to 50 mm.
A second transparent glass (or cursor), fitted with two very short studs, traps the film in a corner shape.
The cursor is moved forwards and backwards, and it is observed from which graduation the film fully covers the background.
Pfund cryptomer can gives estimate of coverage in square meters per liter anf is very suitable for uwe with coatings containing pigments
Description
The Pfund cryptometer consists of a glass plate, half black half white as the base.
Each half of this base has a scale engraved from 0-50 mm along one ede starting from the division in the center.
Two glass top plates are included with each instrument and these have two metal supports at one end so that these transparent top plates rest at an angle when placed upon the black and white area of the base plate.
The top plates differ in the length of their tiny supports so that different angles are formed between the top plates and the base plate.
A wedge angle constant(K)is given to each top plate.
These range from the smallest angle K=0.002 to K= 0.0035, K= 0.004, K= 0.007 and the largest K=0 .008, the popular constants being K=0.004 and K=0.008.
Characteristics :
Reflectance of white part 80±2
Reflectance of black part ≤2
Weight 1.0 Kg
Dimensions 100mm×170mm×20mm. (L×W×H)
Ordering Information:
298-4500---Pfund Cryptometer
298-4500/20K-----Glass Plate(K=0.002)
298-4500/35K----- Glass Plate(K=0.0035)
298-4500/40K----- Glass Plate(K=0.004)
298-4500/70K----- Glass Plate(K=0.007)
298-4500/80K----- Glass Plate(K=0.008)
