High-purity desiccant for fog-free IG cavities
High-purity desiccant beads that absorb moisture within the insulating glass cavity, preventing internal fogging and preserving optical clarity for the life of the window.

3A molecular sieve desiccant beads for insulating glass spacer bars — moisture absorption that prevents internal fogging.
Custom specifications, packaging and volumes are available on request. Contact our sales team for samples, technical data sheets and distributor pricing.
Every product in this family is supplied to specification. Full technical data sheets, packaging options and OEM requirements are available on request.
Need a specific dimension or configuration? Tell us your requirement and we'll match the closest product in the range.
| Appearance | Beige or brown beads |
| Bead Size | 0.5–0.9mm / 1.0–1.5mm |
| Application | Filling of insulating glass spacer bars |
| Function | Absorbs moisture inside the IG cavity |
| Result | Prevents internal fogging, preserves optical clarity |
| Lifespan | Effective for the life of the window |
Direct filling of IG spacer bars on manual or automated desiccant filling lines.
Absorbs residual and in-service moisture inside the sealed cavity.
Prevents internal fogging so units stay optically clear for life.
High-purity beads deliver consistent moisture absorption performance.
Keeps the cavity dry so units never fog from internal condensation.
0.5–0.9mm and 1.0–1.5mm options suit different spacer profiles and fillers.
Effective moisture control for the entire service life of the window.
Everything you need to know about 3a molecular sieve.
3A molecular sieve has a precisely controlled pore size (3 angstroms) that adsorbs water molecules while excluding larger molecules. It provides stronger, more selective moisture adsorption and is the industry-standard desiccant for IG spacer bar filling.
Use 1.0–1.5mm beads for conventional spacer bar filling. Use 0.5–0.9mm beads for narrow spacer profiles or automated filling equipment that requires finer bead flow.
Molecular sieve adsorbs moisture from the air, so opened containers should be resealed promptly and used within a short window to maintain full adsorption capacity.
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This catalogue is prepared for our international distribution partners across Asia and the Middle East. Include your product family, quantities and delivery region for a faster response.
Contact our distribution team for pricing, samples, technical data sheets and delivery schedules across Asia and the Middle East.