3g Desiccant Packets Bulk – Molecular Sieve Sachets for Medical & Industrial Use
3g Molecular Sieve Desiccant Sachets – Heavy-Duty Bulk Supply
Some applications don’t leave room for error. When your package is large, your seal cycle is long, or your storage conditions are unpredictable, you need a desiccant that won’t tap out halfway through the product’s shelf life. The 3g sachet is built for exactly that — high-demand environments where moisture control has to work the first time and every time.
Ships from our US warehouse. Fast delivery across the continental US and to Canada — no overseas lead times, no customs delays from Asia.
📦 Bulk Pricing – The More You Order, The More You Save
- 100 pcs – $22.00 ($0.220/pc)
- 200 pcs – $40.00 ($0.200/pc)
- 300 pcs – $55.00 ($0.183/pc)
- 500 pcs – $80.00 ($0.160/pc)
- 750 pcs – $100.00 ($0.133/pc)
- 1,000 pcs – $115.00 ($0.115/pc)
- 1,500 pcs – $145.00 ($0.097/pc)
- 2,500 pcs – $245.00 ($0.098/pc)
- 5,000 pcs – $445.00 ($0.089/pc)
Need more than 5,000 pcs? Contact us with your quantity and we’ll confirm the delivery date based on your order size.
Why Molecular Sieve – Not Silica Gel?
Silica gel is fine for general use. But if your application requires humidity control below 20% RH — diagnostic reagents, sterile medical devices, precision electronics — silica gel won’t hold up. Molecular sieve 4A adsorbs faster, holds more at low humidity, and stays effective down to -20°C (-4°F). It’s the industry standard for critical applications across North America.
Product Specs
- Sachet weight: 3g
- Sorbent: Molecular Sieve 4A (0.4nm pore diameter)
- Absorption capacity: >17% of its weight at 25°C / RH 20%
- Packaging: Breathable nonwoven, dust-free, no binders or solvents
- Seal type: Melt-seal edges – packaging-line compatible
- Back window: Transparent – visually confirm sorbent fill
- Operating temp: -20°C to high-temp environments
Who Uses the 3g Sachet?
🩺 Large Medical Device & Surgical Kit Packaging
Surgical instrument sets, orthopedic implant kits, and large sterile procedure trays have significant internal volume. A 3g sachet keeps the entire sealed environment below critical humidity thresholds — from your production floor to the hospital or clinic. Widely used by US and Canadian medical device manufacturers and contract packagers.
🏭 Industrial Enclosures & Outdoor Control Panels
Electrical cabinets, junction boxes, and outdoor sensor housings in North American industrial facilities face wide seasonal temperature swings — from Canadian winters to summer heat. A 3g molecular sieve sachet inside the enclosure actively pulls moisture out of the air year-round, protecting electronics without needing frequent replacement.
📦 Defense, Aerospace & Long-Term Storage
US and Canadian defense contractors, aerospace suppliers, and government storage facilities rely on high-capacity desiccants for sealed transit cases, optics packaging, and long-term equipment storage. The 3g sachet provides the capacity and stability needed for extended storage periods where silica gel would saturate and fail.
🔬 Cold-Chain Pharmaceutical & Biotech Shipping
Large-format cold-chain shipments of biologics, vaccines, and enzyme reagents moving through US and Canadian distribution networks face significant humidity variation. A 3g sachet inside each insulated shipping container protects high-value temperature-sensitive products throughout the supply chain.
📚 Archival, Museum & Records Storage
Libraries, museums, government archives, and records management facilities across North America use 3g molecular sieve sachets to protect documents, film, optical media, and artifacts in sealed containers over years or decades — where silica gel would require constant monitoring and replacement.
Frequently Asked Questions
Do you ship to Canada?
Yes. We ship from our US warehouse to both the continental US and Canada. Canadian customers benefit from significantly shorter transit times compared to ordering direct from overseas suppliers.
When should I use 3g instead of a smaller sachet?
Use the 3g sachet when your package has a large internal volume, a long shelf life requirement, or will be stored in variable-temperature environments like unheated warehouses or outdoor enclosures. If a smaller sachet is saturating before your product reaches the end user, the 3g is the right step up.
How fast does it ship?
Most orders ship within 1–2 business days from our US warehouse. No overseas lead times — what you see in stock is ready to go.
What’s the minimum order?
100 pcs at $22.00 — good for evaluation or small production runs. Larger quantities drop the per-unit cost significantly, down to $0.089/pc at 5,000 pcs.
Can I order more than 5,000 pcs?
Yes. Contact us with your required quantity and we’ll reply with a confirmed delivery date based on your order size.
Can these run on automated packaging lines?
Yes. Melt-seal edges and consistent dimensions make these compatible with standard high-speed packaging equipment used across North American production facilities.