English 
Trace water is an important issue in the production and preparation of Polyurethane (PU) products. Trace water in polyols react with isocyanate to form carbon dioxide, resulting in foaming. At the same time, a large amount of heat is released, resulting in a shorter service life.
Chemxin activated molecular sieve powders are excellent moisture scavengers for paints, varnishes, waterproofing and coatings based on polyurethane, polyurea, 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 |
| 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 | |||
| 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. | |||
Activated Molecular Sieve Powder works in Polyurethane
CHEMXIN is one of the biggest leading manufacturer of adsorbents, tower support medias and tower packings in China. Our factory covers an area of 42,000M2 with fully automatic production lines, intelligent warehouse, perfect production system, as well as excellent quality control system throughout all stages of production. We have nearly 20 years of factory production experience enables us to guarantee customer satisfaction.
At present, our company is sinopec network resource market supplier. Our products have been widely used in electricity, petroleum, chemical, metallurgy, environmental protection, pharmaceutical, aerospace, aviation and other industries throughout the country. Exports to more than 130 countries and regions overseas. We have provided products and professional services for dozens of the world's top 500 for many years, like SINOPC, AIRLIQUID, GE, BAYER, TATA GROUP, SORBEAD ect.
Trace water is an important issue in the production and preparation of Polyurethane (PU) products. Trace water in polyols react with isocyanate to form carbon dioxide, resulting in foaming. At the same time, a large amount of heat is released, resulting in a shorter service life.
Chemxin activated molecular sieve powders are excellent moisture scavengers for paints, varnishes, waterproofing and coatings based on polyurethane, polyurea, 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 |
| 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 | |||
| 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. | |||
Activated Molecular Sieve Powder works in Polyurethane
CHEMXIN is one of the biggest leading manufacturer of adsorbents, tower support medias and tower packings in China. Our factory covers an area of 42,000M2 with fully automatic production lines, intelligent warehouse, perfect production system, as well as excellent quality control system throughout all stages of production. We have nearly 20 years of factory production experience enables us to guarantee customer satisfaction.
At present, our company is sinopec network resource market supplier. Our products have been widely used in electricity, petroleum, chemical, metallurgy, environmental protection, pharmaceutical, aerospace, aviation and other industries throughout the country. Exports to more than 130 countries and regions overseas. We have provided products and professional services for dozens of the world's top 500 for many years, like SINOPC, AIRLIQUID, GE, BAYER, TATA GROUP, SORBEAD ect.
