The drying rate of air-drying systems is, as already mentioned, slow and even for reacted oils as alkyds, the drying is too slow for commercial applications. The drying time is therefore commonly reduced, by adding metal driers to the system, as these act as catalysts and thereby accelerate the drying process. The drying time can thereby be reduced from days to hours. The presence of efficient driers is therefore essential for the drying of air-drying coating systems.

combination driers in pakistan

There are two types of combination Driers