5A Molecular Sieve Powder
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  • 5A molecular sieve powder



5A activated molecular sieve powder 2-4um for CO2 and H2S adsorption in special plastic and polyurethane mixtures


Chemxin Activated Molecular Sieve Powder is dehydrated synthetic powder molecular sieve. With the charater of high dispersibility and rapid adsorbability, it is used in some special adsorbability, it is used in some special adsorptive circumstances, such as being formless desiccant, being adsorbent mixed with other materials etc.

The powder is also available as pastes (50% dispersion in castor oil). Chemxin zeolite powders and pastes are added to solvent-free one-pack and two-pack polyurethane systems, primarily to remove water. Applications include coatings, adhesives, sealants, casting resins, sports floors and elastomers.

zeolite powder

5A molecular sieve activation powder:
In the production of polyurethane products, the product itself can not change the physical and chemical properties under the condition of adsorption, affecting the quality of products impurities such as water; can also be used as a selective adsorbent added to specific polymers or coatings, CO2 and H2S adsorption gas generated in the production process.

Technical Parameter:

Model Activated Molecular Sieve Powder
Color White
Nominal pore diameter 3 angstroms; 4 angstroms; 5 angstroms; 10 angstroms
Shape Powder
Diameter (mm) 3A 4A 5A 13X
CAS NO. 308080-99-1 70955-01-0 69912-79-4 63231-69-6
Size (μm) 2~4 2~4 2~4 2~4
Bulk density (g/ml) ≥0.43 ≥0.43 ≥0.43 ≥0.43
Static water absorption (%) ≥22 ≥23 ≥26 ≥28
PH value 7~9 9~11 9~11 9~11
Sieve Residue (%) (325 mesh) ≤1.0 ≤1.0 ≤1.0 ≤1.0
Water content (%) ≤2.0 ≤2.0 ≤2.0 ≤2.0
Typical Application

2K-Polyurethane coatings and mouldings
1K-Polyurethane storage protection
Storage protection for metallic pigment paint
Polysulfide and silicone systems
Carriers for chemicals for controlled release
Processing aid for polymer production
Desiccant for the production of polymer desiccant materials
Cosmetics additive
Storage protection additives for highly hygroscopic goods
Additives for flame retardants
Shift of chemical reaction by removal of water as by product


The product as a desiccant can not be exposed in the open air and should be stored in dry condition with air-proof package.

Molecular Sieve Powder Application

Activated Molecular Sieve Powder works in Polyurethane

4a zeolite powder

zeolite powder

zeolite powder package



Product Category

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Tel : +86-20-39185057
Hand phone:+86-13538980736
E-mail : info@chemxin.com
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