Molecular Sieve 3A for Insulated Glass

Sorbead India molecular sieves protect the insulating glass units for years thanks to a 

genuine 3A zeolite structure, high adsorption capacity, and higher physical properties

Why Molecular Sieve 3a using an Insulated glass.?

•an insulated glass unit is composed of two glass lines at least. These are separated by a space filled with air or a special gas (argon, krypton, SF6, etc.).

The lines are supported and separated by a spacer and then sealed,

•water from the air and solvents from the sealant can be confined inside the unit during production. Water can also breach through the sealant during the life of the insulated glass unit,

•both phenomena lead to confusing (water or solvent condensation on glass lite).

Benefits of Sorbead India molecular Sieve 3a

Molecular Sieve 3a avoid the fogging, a desiccant is introduced between the two glass lines to ensure the gas space is water-free

there is the number of adsorbents available in the market, but only molecular Sieve 3a adsorbents desiccants, guarantee a water-free space for years in industry condition.

Focus on aluminum spacer bar systems

Which type of molecular sieves needs to use?

In the traditional systems, the lites are supported and separated by an aluminum spacer bar and then sealed. 3A Molecular sieves in beads of 0.7mm to 2.0mm are used in this technology. The molecular Sieves beads are filled below the aluminum spacer by means of dedicated equipment.
 

Key requirements

·         Molecular sieves must show a high water adsorption capacity at low moisture levels (below 10%) that will ensure high durability of the glass.

·         It is a must that 3A molecular sieves are used to avoid co-adsorption of air which would translate into glass deflection and deflection of the glass panel.

·         The molecular sieve should be free of dust and static electricity.

Benefits of using Sorbead India 3A molecular sieves

·         very high adsorption capacity at the right moisture levels: below 10%

·         avoiding co-adsorption and protecting your products against long-term defects

·         avoiding dust and static electricity that could lead to deposits on the lites

Why need to use Sorbead India 3a Molecular sieve?

·         22 years of experience in the glass industry

·         best quality 3A molecular sieves

·         controlled grain size distribution

·         low density 

 Precautions While Buying 3a Molecular sieve in the Crowded Market

Some of the products on the market claim to be "molecular sieves 3a", but are not suited to the insulated glass industry. Some of them are made of natural zeolite, simple clay, lime or calcium chloride, and are very attractive to the buyers because of their lower product costs. 

However, their performances are far below the requirements and could result in high guarantee costs at a later stage. This type of products’ poor performance in the conditions of insulated glass is not always clear to non-chemists, and the suppliers present some of their weaknesses as advantages.

In order to help you identify these troubles, we have listed some criteria:

• The water adsorption data supplied by these vendors always show very good adsorption at high relative humidity such as 32% or more (60%). This is however outside the application requirement since moisture in the glass is only a couple of percent, a level at which these products are not effective.

• The density (weight in grams per liter) should not exceed 800g per liter. High densities are generated by the use of diluents, such as lime, calcium chloride or high clay rates and reflect a poor product.

• These suppliers do not report any data on the co-adsorption of gas:  it is most probably not a 3A zeolite and gas adsorption will occur, generating the stress to the window pane and ultimately loss of integrity.

• The loss on ignition (also called water pre-loading or moisture package) is often measured at temperatures around 400°C instead of 950°C, in order to hide the poor quality of diluents

• These suppliers often report slow adsorption, reflecting the poor performance of products in moderate humidity, which is what you want to avoid if you do not want fogging.

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