hydrated zeolite sodium A powder 2-4 um 3A 4A 5A 13X activated molecular sieve powder for polyurethane to eliminate moisture
Chemxin activated molecular sieve powder is used to produce paints, varnishes, waterproofing and coatings based on polyurethane, polyurea, ceramics, epoxy, acrylic and PVA.
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.
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 |
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 |
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Attention |
The product as a desiccant can not be exposed in the open air and should be stored in dry condition with air-proof package. |