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NatraSorb® Bags

Large-format bags feature high absorption capacity in a flexible, robust format.

Invest in the Ultimate Moisture Control Solution

For over 60 years, Multisorb has been a trusted leader in moisture control solutions, delivering innovative products that meet the needs of diverse industries. Since our founding in 1961, we’ve built a reputation for quality and reliability, and NatraSorb bags embody this commitment.

NatraSorb bags provide reliable, high-performance protection against moisture damage, making them ideal for critical applications. Designed to combat issues like rust, corrosion, mold, and mildew, these moisture absorber bags deliver military-grade adsorption capacity you can trust. Whether you’re protecting electronics, pharmaceuticals, or bulk goods, NatraSorb offers unmatched performance in a format that’s more compact and customizable than traditional large desiccant bags.

NatraSorb Specifications

Simplifies Moisture and Humidity Control

NatraSorb Bags are ergonomic and compact, allowing your team to easily place them into your packaging and maintain optimal product conditions.

Versatile Applications in Food, Healthcare, and More

Whether you’re preserving packaged foods, protecting medical supplies, or safeguarding electronics, NatraSorb Bags are the ideal solution for your bulk packaging needs.

Meets Military MIL-D-3464 Absorption Specifications

Made to MIL-D-3464 standards, these desiccant bags provide consistent, high-capacity moisture adsorption you can rely on.

Dust-Proof, Contamination-Free Packaging

Engineered with robust materials and sealed construction, NatraSorb Bags reduce dust or debris, ensuring product purity and cleanliness.

Available in Fractional and Full Units

Choose the exact desiccant quantity needed—from small fractional units for compact packages to larger full units for bulk applications—ensuring optimal moisture control.

Optimize Space Usage With Compact Moisture Control

NatraSorb delivers reliable moisture protection backed by Multisorb’s decades of expertise. Let us help you develop the perfect desiccant pouch for your products.

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How Multisorb Is Leading the Way in Moisture Control

Multisorb’s NatraSorb bags are designed to address the stringent regulatory demands faced by industries such as pharmaceuticals, food and beverage, and electronics. Our solutions comply with critical standards, including FDA requirements for direct food contact, USP/NF monographs for pharmaceutical packaging, and ISO guidelines for electronics manufacturing. By adhering to these and other global regulations, we ensure your products remain compliant and protected.

With end-to-end manufacturing precision and the ability to customize desiccant materials and bag sizes, NatraSorb bags seamlessly integrate into your operations. They exemplify Multisorb’s dedication to innovation, helping you maintain product integrity while meeting regulatory demands with confidence.

Custom Solutions for Every Industry

NatraSorb isn’t a one-size-fits-all solution—it’s a fully customizable product designed to meet the exact demands of your industry. From choosing the ideal desiccant material to selecting the right bag construction, we’ll ensure NatraSorb aligns perfectly with your packaging requirements.

Supported Applications

Nutraceuticals

Electronics

Machine Equipment and Parts

Photo Equipment

Pharmaceuticals

Bulk Goods

NatraSorb FAQs

What makes NatraSorb different from other desiccant bags?

NatraSorb (silica gel) is the preferred choice when product sensitivity, regulatory requirements, temperature variability, or equipment cleanliness are key considerations.
Clay can be acceptable for low-cost, low-risk applications — but silica gel delivers higher reliability, better moisture control, and more consistent performance for mission-critical products.

Can NatraSorb bags handle bulk packaging needs?

Absolutely. NatraSorb is engineered for both small-format dosing and large-scale bulk packaging applications. Whether you’re protecting large containers, drums, totes, or high-volume production runs, NatraSorb delivers consistent, high-capacity moisture control across a broad humidity and temperature range.

What sets NatraSorb apart from standard, commodity-grade bulk desiccants is its controlled, predictable moisture adsorption curve, low dust profile, and stable performance under temperature fluctuations. This makes it ideal for protecting sensitive or high-value materials where moisture variation can impact product integrity, shelf life, or regulatory compliance.

For bulk environments, the advantages are clear:

  • High adsorption efficiency at low to mid RH—critical for moisture-sensitive materials
  • Performance stability in fluctuating or elevated temperatures
  • Cleaner, low-dust formulation suitable for regulated or equipment-sensitive operations
  • Consistent, reproducible quality backed by rigorous manufacturing standards
  • Customizable formats and load sizes to match specific container volumes or logistics requirements

    NatraSorb gives you the reliability and performance needed for demanding bulk applications—beyond what traditional, general-purpose desiccants can offer.

Are NatraSorb bags compliant with industry standards?

Absolutely. NatraSorb bags conform to Military Specification MIL-D-3464 and are crafted with FDA-approved materials where required, ensuring reliability in regulated industries.

Other Desiccant Solutions

Canisters

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Liquid Solidification

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Preserve Your Products With Confidence

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