4A 8x12 Molecular Sieve Desiccant High-Performance Zeolite for Industrial Drying
4A 8x12 Molecular Sieve Desiccant High-Performance Zeolite for Industrial Drying - 100kg (220.46 lbs) Pallet (Vendor MOQ) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
(Vendor MOQ) Buy 2+ 100kg pallets to save 10%, or 6+ 100kg pallets to save 20% — auto-applied at checkout.
| Qty | Discount |
|---|---|
| Buy 2 | 10% off each |
| Buy 6 | 20% off each |
Overview
4A 8x12 Molecular Sieve Desiccant by Delta Adsorbents is a high-performance zeolite desiccant designed for selective moisture removal in industrial and commercial processes. With a pore size of ~4 Å, it efficiently adsorbs water molecules while excluding larger compounds, making it ideal for drying gases, liquids, and air streams where moisture control is critical.
Where it fits
- Gas drying: moisture removal from natural gas, hydrogen, and industrial process gases
- Liquid drying: efficient dehydration of solvents, refrigerants, and specialty liquids
- Air drying: moisture control in compressed air and pneumatic systems
- Insulated glass units: prevents fogging and condensation in double-pane glass
- Cryogenic operations: reliable performance in low-temperature dehydration processes
Key advantages
- High adsorption capacity for water vapor at standard conditions
- Selective 4 Å pore size excludes hydrocarbons and larger molecules
- Durable crystalline structure with strong crush resistance
- Regenerable by heat for extended service life
- Available in multiple industrial packaging formats (220 lb drums, 2000 lb bulk bags)
Typical specifications
| Form | Spherical beads |
| Mesh size | 8x12 |
| Nominal pore opening | 4 Å |
| Equilibrium water capacity @ 25 °C | ~20% wt |
| Heat of adsorption | ~1800 BTU/lb H₂O |
| Bulk density | ~0.70 g/mL (~44 lb/ft³) |
| Crush strength | ≥35 N (≥8 lb) |
| Size qualification | ≥97% |
| Package moisture (as shipped) | ≤1.5% wt |
| Manufacturer | Delta Adsorbents |
| Lead time | 1–2 weeks (confirmed at quote) |
Values are typical and provided for reference. Final specifications are confirmed at quote or via COA.
Packaging & availability
- MOQ: 100 kg (vendor packaging constraint)
- Formats: 220 lb drums and 2000 lb bulk bags; smaller stock sizes may be available on request
- Lead time: typically 1–2 weeks
Documentation & support
SDS, COA, and technical data sheets are available for this product. Visit our Documentation page or contact us to request documentation or discuss your project requirements.
Questions & Answers
Q: What is the pore size of 4A molecular sieves?
A: Approximately 4 angstroms, allowing for selective adsorption of water molecules while excluding larger compounds.
Q: Can 4A sieves be regenerated?
A: Yes, they can be regenerated by heating to remove moisture, restoring adsorption capacity.
Q: What packaging options are available?
A: Standard formats include 220 lb drums and 2000 lb bulk bags, with a minimum order of 100 kg.
Q: What industries commonly use 4A molecular sieves?
A: They are widely used in natural gas dehydration, solvent drying, air compression systems, insulated glass, and cryogenic processes.
Q: What is the standard lead time?
A: Typically 1–2 weeks, though larger orders may require confirmation.

