Applications of Magnesium Chloride Desiccant

Reliable High-Humidity Moisture Protection for Industrial Packaging, Storage, and Shipping

SORBSTAR® delivers high-performance industrial desiccant solutions designed for demanding logistics, export, and storage environments worldwide.

Why Choose SORBSTAR® Magnesium Chloride Desiccant?

Magnesium chloride desiccant is a high-performance moisture absorber widely used in industrial packaging, transportation, and storage applications where humidity control is critical. Due to its strong hygroscopic and deliquescent properties, magnesium chloride rapidly absorbs moisture from the air and converts it into a stable solid block, making it especially effective in high-humidity and long-duration exposure environments.

Compared with traditional desiccants such as silica gel or clay, magnesium chloride desiccant offers significantly higher moisture absorption capacity, allowing industrial users to achieve reliable protection with fewer units and lower overall cost. It is commonly selected for export packaging, container shipping, warehouse storage, and industrial equipment protection.

Technical Highlights:

  • Up to 300% moisture absorption capacity (weight at 50°C, 90% RH, SGS tested)

  • Turns absorbed moisture into a solid block with no leakage, ensuring safe and mess-free use in enclosed spaces.

  • Complies with REACH, RoHS, SGS, and MSDS certifications for export and industrial use.

  • Constructed with durable Tyvek® Paper / Dulai Paper packaging to prevent dust and enhance moisture protection.

How It Works

SORBSTAR® magnesium chloride desiccant is formulated with anhydrous MgCl₂ plus starch-based polymer. When exposed to ambient moisture:

  • The MgCl₂ triggers a chemical hygroscopic reaction that absorbs water vapor from air.

  • Moisture is permanently locked into a solid mass, eliminating risk of liquid drip or reverse diffusion.

This makes it highly effective in environments with wide humidity ranges (10%–100% RH, -20°C to 90°C)—ideal for protective packaging, storage, and extended transit conditions.

SORBSTAR desiccant

Primary Industrial Applications Scenarios

Packaging Moisture Protection

SORBSTAR® magnesium chloride desiccant is widely used inside industrial and export packaging to protect moisture-sensitive products.

Typical Applications:

  • Electronics and electrical components

  • Auto parts and precision metal components

  • Hardware, tools, and mechanical assemblies

Moisture Risks Addressed:

  • Corrosion and oxidation

  • Mold and mildew formation

  • Degradation of sensitive materials

Desiccant units are placed directly inside cartons, sealed packaging, or export crates to ensure consistent humidity control throughout the supply chain.

Transportation & Logistics Protection

During long-distance shipping, especially sea freight, cargo is exposed to extreme temperature changes and high humidity. Magnesium chloride desiccant is commonly used to protect goods from moisture damage caused by container rain and condensation.

Common Use Scenarios:

  • Sea freight containers

  • Long overland transport

  • High-humidity regional transit

SORBSTAR® strips and sachets help prevent container rain, condensation, and corrosion, making them ideal for marine and intermodal logistics.

Warehouse & Storage Humidity Control

Uncontrolled humidity in warehouses can cause long-term damage to stored goods. SORBSTAR® magnesium chloride desiccant helps create a stable, dry micro-environment in enclosed spaces.


SORBSTAR® desiccants help maintain dry environments for:

  • Spare parts inventory

  • Finished goods storage

  • Sensitive industrial equipment

By reducing excess moisture, magnesium chloride desiccant extends product shelf life and reduces maintenance and replacement costs.

Industrial Equipment & Machinery Protection

Placing desiccants in SORBSTAR® magnesium chloride desiccants are widely used to protect sensitive industrial equipment from internal condensation.

Typical Equipment

  • Electrical control cabinets

  • Switchgear and power distribution boxes

  • CNC machines and industrial systems

Effective moisture control improves operational reliability and reduces downtime.

SORBSTAR® Product Forms & Usage Scenarios

SORBSTAR® magnesium chloride desiccant is available in multiple industrial formats:

  • Desiccant bags for cartons and packaging

  • Hanging desiccant strips for containers and large enclosures

  • Bulk absorbent packs for warehouse and storage applications

Selection is based on enclosure volume, humidity level, transit duration, and protection requirements.

Magnesium Chloride vs Other Desiccants

Compared with silica gel and clay desiccants, SORBSTAR® magnesium chloride desiccants provide:

  • High-humidity performance: Up to 300% absorption (MgCl₂ based) vs lower rates of silica gel.

  • Leak prevention: Solid block formation provides safer use than gel – leakage prone types.

  • Wide temperature range: Performs in -20°C to 90°C environments.

  • Greater efficiency for long-term shipping and storage

These characteristics make SORBSTAR® magnesium chloride desiccant especially suitable for industrial packaging, container shipping, and high-humidity applications, where moisture damage leads to significant quality issues or loss.

How to Choose the Right Magnesium Chloride Desiccant

To select the optimal SORBSTAR® magnesium chloride desiccant, consider:

  • Size and volume of the enclosed space

  • Expected humidity level and exposure duration

  • Transportation conditions and route

  • Required absorption capacity and packaging format

Professional selection ensures optimal moisture protection and cost efficiency.

Also our technical team can assist with application-specific recommendations.

Most Asked Questions

Check out the questions that you may be interested in. 

Yes. It is widely used for sea freight and export containers.

We have our own factory.
Located in Fengxian,Shanghai,China

Yes, we offer free samples for testing. Customers only need to cover the shipping cost.

Yes,Accept OEM/ODM service could print your logo on package but will ask MOQ based on different products.

ISO9001, SGS product test reports, and MSDS chemical composition reports.

MOQ 50KG,more quantity more cost-effective.

In high-humidity and long-duration environments, SORBSTAR® magnesium chloride desiccant often delivers superior results.

Delievry time according to quantity, 7-30days,we can talk when place order.

1. For small trial order: Fedex and DHL. 

2. For large orders: usually by ship or according to your request,if urgent,by air also ok.

We have Non-hazardous transport identification report for sea and for air both

Contact us to make you invoice,then could payment to our bank directly.

For small order,we ask 100% TT deposit,because our delivery time very fast.

50% deposit,50% Balance afetr goods finished,But before shipment.

Contact SORBSTAR® for Solutions

For technical data sheets, bulk pricing, or customized moisture control solutions, contact SORBSTAR® to discuss your application requirements.

Contact us