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Molecular Sieve Desiccant

Engineered for deep drying where silica gel fails. Secure your pharmaceuticals, electronics, and insulating glass with superior adsorption at low relative humidity and high temperatures.

4A Type Molecular Sieve Desiccant

15g Molecular Sieve Packet

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Why Industry Leaders Choose Our Molecular Sieves Desiccant?

We understand that standard desiccants aren’t enough when you are dealing with extreme dryness requirements or harsh thermal conditions. Here is how our Molecular Sieves solve the problems that other absorbents can’t:

1. Conquer Inefficiency at Low Humidity

You need ultra-dry conditions where standard desiccants fail. You may have noticed that standard silica gel loses its effectiveness significantly once Relative Humidity (RH) drops below 40%. For your most sensitive electronics or diagnostics, “mostly dry” isn’t good enough. 

We ensure deep drying when it matters most. Our Molecular Sieves maintain aggressive adsorption rates even at ultra-low humidity levels. We give you the capability to reduce internal humidity to near-zero levels, performance that standard silica gel simply cannot match.

2. Prevent Moisture Release at High Temperatures

You can’t afford for your desiccant to reverse course when it gets hot. During transport through tropical zones or storage in hot warehouses, physical adsorbents often release their trapped moisture back into the package (desorption), re-wetting your product.

We lock moisture away permanently. Our Molecular Sieves bind water molecules strongly within their uniform crystal lattice structure. This prevents re-evaporation even when temperatures spike, ensuring your goods remain protected regardless of supply chain volatility.

3. Eliminate Contamination from Unwanted Adsorption

You need a desiccant that targets water, not your product ingredients. Generic desiccants are often “blind” adsorbers—they might accidentally strip essential additives, co-solvents, or gases from your product, altering its chemical composition. 

We offer precision selectivity. By providing the correct pore size, we ensure that only water molecules are small enough to be trapped. We exclude larger molecules, such as your active pharmaceutical ingredients (APIs) or insulating gases, guaranteeing your product remains pure and effective.

Technical Specifications

Parameter

Specification

Appearance

Tan or White Spherical Beads

Drying Loss

< 1.0% (Packaged)

Adsorption Capacity (At 25°C, 20% RH)

> 17.0%

Adsorption Capacity (At 25°C, 50% RH)

≥ 21%

Static Water Capacity

≥ 20% – 23%

Available Packaging

Tyvek, Non-woven, Composite Paper,Coated Paper, Perforated Film

  • Precision Pore Engineering: Synthesized crystalline aluminosilicates with uniform pore sizes control exactly which molecules are adsorbed.
  • Deep Drying Capability: Capable of reducing residual water content to extremely low ppm levels, ideal for static drying of perishable chemicals.
  • Certified Compliance: Fully compliant with RoHS, REACH, and MSDS standards, ensuring safe global export.
  • High-Speed Production: Produced in a 26,000 m² facility with automated lines, ensuring a daily capacity of 80+ million packs.

Applications

Pharmaceuticals

Protecting reagents and test strips where any moisture triggers premature reactions.

Chemical Purification

Deep drying of refrigerants, ethanol, and natural gas streams.

Electronics & PCBs

Preventing micro-corrosion and "popcorn effect" during reflow soldering for sensitive components.

Insulating Glass

Using Type 3A to prevent window fogging without adsorbing air/gas from the interspace.

The Global Supply Chain Guardian

We don’t just sell desiccants; we provide moisture control assurance.

  • Manufacturing Excellence: 20+ years of experience with 200+ intelligent automated production machines.
  • Quality Systems: Certified under ISO 9001:2015 and ISO 14001:2015 management systems.
  • Third-Party Verified: Products are SGS tested and free from DMF.
  • Trusted Partners: Serving over 3,000 customers globally, including major brands in electronics and food sectors.

Molecular Sieves Desiccant: Frequently Asked Questions

While Silica Gel acts as a general moisture buffer, Molecular Sieve Desiccant is an aggressive drying agent. It has a faster adsorption rate and retains moisture much better at high temperatures and low relative humidity levels compared to Silica Gel.

 
 
 
 
 
 
 
 
 

It depends on what you are drying. Type 3A is used when you need to dry liquids or gases without adsorbing molecules larger than 3 Angstroms. Type 4A is the standard for static drying of water in closed packaging systems.

 
 
 
 
 
 

Yes. We offer dust-free packaging options including Tyvek, transparent composite film, and high-grade non-woven fabric to ensure compliance with cleanroom standards.

When stored in our original double-layer moisture-barrier packaging, the shelf life is typically 1 year. Once opened, they should be used immediately to prevent saturation.

Yes, our products are non-toxic, eco-friendly, and comply with RoHS and REACH standards. We can provide SGS testing reports upon request.

 
 
 

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