Zeolum NSA Synthetic zeolite Tosoh Moisture Scavengers >> Synthetic zeolyte PU - Prepolymers SEALANT ADHESIVE >> Hot-melt >> Pressure sensitive (HMPSA) Type F-9 Zeolum is a synthetic zeolite processing strong selective absorption properties. Zeolum is suitable for drying, purifying and separating a wider variety of feeds than any other adsorbent. Used as moisture scavenger for sealants. Synthetic zeolite. Used as moisture scavenger in urethane sealants and pressure sensitive adhesives. Provides drying and purifying.