Calcium Chloride Desiccant 25g — Tyvek — Blue

CEMACOSG's Calcium Chloride 25g Blue-Logo Tyvek sachet is the highest-performance desiccant in the CEMACOSG product range — CaCl₂ absorbs 200–300% of its own weight in moisture (6–10 times more than silica gel or clay), making it the specified choice for extremely high-RH environments above 80% and equatorial container routes. The Tyvek pouch withstands the hydrostatic pressure of CaCl₂ converting to a liquid gel upon saturation, preventing leakage throughout the full service life of the sachet.

Technical Specifications

• Net weight: 25 g (tolerance ±3%)
• Composition: Calcium chloride (CaCl₂) granules, ≥ 94% purity — DMF-free
• Moisture absorption: 200–300% by weight at 25°C / RH 90% — equivalent to 50–75 ml of water per sachet
• Operating range: 0–50°C; particularly effective at RH > 70%
• Packaging material: Tyvek 1073B — rated for liquid-gel pressure resistance, puncture-resistant, non-friable
• Print: CEMACOSG logo + "DO NOT EAT — DO NOT ALLOW DIRECT PRODUCT CONTACT" warning in blue
• Standards: ISO 9001:2015
• Shelf life: 24 months (sealed, ≤ 25°C, RH < 50%)

Practical Applications

• Electronics containers on Southeast Asia–Africa lanes: The Singapore–Lagos route runs 22–25 days crossing the equatorial Atlantic at sustained sea RH of 85–95%. CaCl₂ 25g Tyvek sachets placed inside electronics cartons handle moisture loads that standard silica gel or clay cannot absorb quickly enough.
• Cold rooms & technical control panels: Server rooms, switchgear cabinets and DCS control rooms at coastal Vietnamese sites (Da Nang, Vung Tau) — RH reaches 90–95% during monsoon season. One 25g CaCl₂ sachet absorbs 50–75 ml of water, equivalent to 5–8 days of continuous absorption in coastal conditions. Replace sachets every 7 days during monsoon.
• Diagnostic sample & biological specimen transport: Biological samples packed in insulated foam boxes — RH below 40% is required to suppress bacterial activity. One 25g CaCl₂ Tyvek sachet controls a 5–8 litre box for 48–72 hours of domestic transport.

Ordering Information

• MOQ: 1,000 sachets for standard orders; 2,000 sachets for custom OEM Tyvek printing
• Lead time: 5–7 business days (CaCl₂ production requires stricter environmental controls than silica gel)
• Export packing: 100 sachets/vacuum PE bag; 10 bags/carton
• Storage note: Store in dry warehouse at RH < 50%, away from open air — CaCl₂ begins absorbing moisture immediately upon any breach of the sealed outer packaging
• OEM: Custom logo on Tyvek surface — minimum 2,000 sachets

ISO 9001:2015 certified. CoA and MSDS available on request. Technical dosage consultation for specific applications — contact cemacosg.vn/en/quote or call +84 983 929 232.