|
|
|
Drying Time Recorders
 | When developing a process, it is often important to know the exact time it takes for the coating to dry or cure. There are many stages to the coating drying time. Once a coating has been applied, the first stage is that the coating levels off under gravity. Once a coating begins to cure, a thin dry film appears on the surface. The coating then continues to dry and finally after a period of time, the coating is totally cured. But how do you know when a coating is totally dry. |
The Elcometer 5300 is designed to determine paint drying time by linear recording, with up to 10 positions (5 each side of the centre column) tested simultaneously.
Ten rods with hemispherical tips, fitted to a carriage, are brought into contact with the fresh films at one end of the test piece and moved lengthwise.
The drying time is calculated from the distance travelled, measured using a graduated rule along the edge, corresponding to the various stages observed on the trace.
The coatings are applied beforehand on glass strips 25mm (0.98") wide and 700mm (27.5") long.
Using the Elcometer 3505 Cube Film Applicators, it is possible to apply up to five coatings simultaneously on a glass plate.
- The drying time recorder automatically stops at the end of travel
- The load on each ball is 11g (0.37oz), although additional weights can bring this load up to 21g (0.71oz)
|
|
|
|
|
|
