Granular Molecular Sieves For Drying Solvents , Molecular Sieve Air Dryer

Brand Name:Xi'an Lvneng
Certification:ISO9001:2008
Model Number:3A 4A 5A 13X Molecular sieve
Minimum Order Quantity:10 Kilograms
Delivery Time:3-15 work days
Payment Terms:L/C, T/T
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Address: No.1 Qinwang Road, Lintong District, Xi'an, Shannxi, China
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Product Details

Molecular Sieve For Powder Coatings Sealants & Adhesives


Overview​


Molecular sieve is an adsorbent that has the strong ability to control the moisture and humidity from liquids and gases. You must know that moisture can bring damaging effects of moisture in coating, sealants and adhesives products. The water vapors can blend with these products from fillers or ambient air during the production process. Not only this, several contaminated gases such as carbon dioxide can cause moisture related issues and may result in blistering and degradation. To overcome such problems, molecular sieve for powder coatings, sealants & adhesives is used as an active desiccant to obtain moisture-free end products.


In this process, molecular sieves are not used directly. The molecular sieves in the form of powder are mixed in oil with some active ingredients that help in reducing the atmospheric moisture during the handling and mixing of the products. Powdered3A, 4A and 5A adsorbents are used for removing the moisture from coatings, sealants and adhesives without any unwanted reactions. They are basically used from 1% to 5% of its weight depending on the level of water concentration in the polyol and other additives such as fillers, pigments etc. They are ideal adsorbent to extend the shelf and pot life, enhance the surface finish, eliminate the foaming and bubbling as well as efficient in reducing the weathering effects. These adsorbents are easy to use, give high performance and offer consistent results to solve all moisture problems.


The right type of molecular sieve needs to be used depending on the water concentration and type of solution. It is safe and convenient to use this adsorbent as it does not react with any binder.


Technical Index


Molecular Sieve 4A Typical Physical Properties
ItemsUnit8*12 Mesh4*6 Mesh
Bead Sizemm1.6-2.53.0-5.0
Bulk Densityg/ml ≥0.70-0.820.65-0.80
Equilibrium Water Capacity @ 25wt%20.5-22.520.5-22.5
Equilibrium Methanol Capacitywt%15.015.0
Heat of AdsorptionBTU/lb of H2O18001800
Crush StrengthPoint ContactN ≥30-8085-160
Variation Coefficient-0.30.3
Attrition Ratewt%0.10.1
Size Qualification%9898
Package Moisturewt%1.51.5
The interval value of the indexes above are on the basis of the different grade of Molecular Sieve 4A

Storage


Avoid moisture, avoid scrolling, throw and sharp shocking during transportation, rainproof facilities should be readied.

It should be stored in dry and ventilated warehouse to prevent contamination or moisture.


China Granular Molecular Sieves For Drying Solvents , Molecular Sieve Air Dryer supplier

Granular Molecular Sieves For Drying Solvents , Molecular Sieve Air Dryer

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