Blue Indicating Molecular Sieve 8 x 12 Mesh Type 4A

Molecular sieve is a synthetically crystalline metal alumosilicate zeolite.

Molecular sieve particles have a uniform pore structure that enables molecular sieve to separate molecules by size. This pore structure provides a high capacity for water absorption at very low humidity levels while allowing molecular sieve to retain a higher percentage of moisture capacity at elevated temperatures.

Due to its high affinity for moisture, molecular sieve is able to bring the relative humidity in packages down in the low parts per million (ppm) range.

This molecular sieve is indicating and will change color when saturated.

To determine the best size for your application, please refer to our Mesh Size Equivalents Chart.