Molecular Sieve dessicants are good for unique and very demanding applications. It will adsorb more water than clay or silica gel at very low humidity levels.
Molecular Sieve dessicant material is a synthetically produced crystalline metal alumosilicate zeolite. Good choice for the most demanding/unique applications. The pore structures provide a higher capacity for water adsorption than clay or silica gel at very low humidity levels. Retains a higher percentage of moisture capacity at elevated temperatures (well past 450°F)