BENZPACK® CDRY™ is manufactured from thermally activated montmorillonite clay. It traps moisture inside its micropore structure through physical adsorption, with no chemical reaction, no liquefaction, and no by-products. The sachet stays completely solid throughout transit.
CDRY™ is certified nitrite-free and DMF-free. These are the two non-negotiable compliance requirements for regulated market access across the EU, UK, and North America. It holds simultaneous certification under DIN 55473, MIL-D-3464E, REACH, RoHS, and IPC/JEDEC J-STD-033C.
Global Certifications
| Standard | Scope | Status |
|---|
| DIN 55473 | EU and international industrial packaging desiccant standard | Certified |
| MIL-D-3464E Class I and II | US Military specification for packaged desiccants | Certified |
| IPC/JEDEC J-STD-033C | Moisture Sensitive Device packaging standard | Compliant |
| REACH EC 1907/2006 | EU chemical safety registration | Registered |
| RoHS 2011/65/EU | Hazardous substances restriction | Compliant |
| EU DMF Ban 2009/251/EC | Dimethylfumarate prohibition | DMF-Free Certified |
| Nitrite-Free | Zero nitrogen-based additives | Certified |
Performance Advantage Over Silica Gel
Silica gel degrades above 40°C and loses effectiveness below 20% RH. CDRY™ works from 5% to 90% RH and up to 70°C. It contains zero cobalt chloride (a carcinogen present in blue indicator silica gel) and zero nitrite compounds. Full technical comparison and specification data is available in the Technical Specifications tab above.
Where CDRY™ Is Specified
Electronics and semiconductor packaging per J-STD-033C inside Moisture Barrier Bags. Defence and aerospace long-term storage per MIL-D-3464E. Pharmaceutical export packaging under EU GMP Annex 1 and FDA 21 CFR. Precision instruments and optical assemblies. Automotive OEM component packaging for global assembly plant supply chains.
Frequently Asked Questions
Why does nitrite-free certification matter for metal and electronics packaging?
Nitrogen-based compounds are electrochemically active. In sealed packaging with trace moisture, nitrites initiate galvanic corrosion on copper circuit traces, stain precision steel surfaces, and accelerate oxidation on aluminium and magnesium alloys. CDRY™ contains zero nitrogen compounds, ensuring complete chemical inertness across all ferrous, non-ferrous, and multi-metal assemblies.
What is a Desiccant Unit and how do I calculate how many I need?
One Desiccant Unit (DU) per DIN 55473 and MIL-D-3464E is the quantity that adsorbs 3.0g of water vapour at 20% RH and 6.0g at 40% RH. For CDRY™, approximately 28 to 33g provides 1 DU. Contact our technical team for a complimentary calculation based on your package volume, humidity at sealing time, and packing materials.
Is CDRY™ validated for use inside Moisture Barrier Bags per J-STD-033C?
Yes. CDRY™ is fully validated for use within aluminium-laminate MBBs per IPC/JEDEC J-STD-033C. Combined with Humidity Indicator Cards, it delivers a complete compliant MSD packaging system for MSL 1 through MSL 5a device classifications.
Can CDRY™ be thermally regenerated?
Activated clay can be regenerated by heating to 150 to 175 degrees Celsius for 2 to 3 hours. For applications governed by DIN 55473, MIL-D-3464E, or J-STD-033C, fresh factory-sealed units are recommended for each cycle to maintain compliance traceability.
What are the storage and shelf life requirements?
Store in original sealed packaging below 30 degrees Celsius and 60% RH, away from direct sunlight. Shelf life is 24 months. Once opened, use sachets within the same working shift and reseal the master carton immediately.
The adsorption mechanism, specific surface area science, nitrite-free chemistry, and thermal stability data that explain why CDRY™ performs where silica gel does not are covered in detail on the CDRY™ Technical Reference page.