1g Molecular Sieve Desiccant Sachets – Diagnostic & Lab Grade, Bulk
1g Molecular Sieve Desiccant Sachets – Bulk Supply, Fast US Shipping
When your packaging is larger or your moisture load is higher, the 1g sachet is the right choice. WiseMini 1g molecular sieve sachets deliver 4x the absorption capacity of our 0.25g version — purpose-built for diagnostic kit trays, lab reagent bottles, and mid-size medical device pouches. Stocked and shipped from our US warehouse — no long waits, no customs delays.
📦 Bulk Pricing – The More You Order, The More You Save
- 300 pcs – $23.00 ($0.077/pc)
- 500 pcs – $33.00 ($0.066/pc)
- 1,000 pcs – $58.00 ($0.058/pc)
- 2,000 pcs – $98.00 ($0.049/pc)
- 3,000 pcs – $138.00 ($0.046/pc)
- 5,000 pcs – $210.00 ($0.042/pc)
- 10,000 pcs – $360.00 ($0.036/pc)
Need more than 10,000 pcs? Contact us with your required quantity and we will confirm the delivery date based on your order size.
Why Molecular Sieve 4A – Not Silica Gel?
Silica gel works fine at moderate humidity. But when your packaging needs to stay dry at very low humidity levels (below 20% RH), molecular sieve 4A is the only reliable choice. It adsorbs faster, holds more moisture at low RH, and keeps working even in cold environments down to -20°C (-4°F).
Product Specs
- Sachet weight: 1g
- 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 – strong, clean, packaging-line ready
- Back window: Transparent – visually confirm sorbent fill
- Operating temp: -20°C to high-temp environments
Real-World Use Cases
🧪 Diagnostic Kit Trays & Multi-Well Plates
Larger diagnostic formats — multi-test trays, lateral flow cassette boxes, and multi-well plate kits — require more desiccant capacity than a 0.25g or 0.5g sachet can provide. A single 1g sachet maintains the dry environment needed across the entire tray, protecting every test unit inside.
💊 Pharmaceutical Reagent Bottles & Vials
Enzyme reagents, lyophilized powders, and diagnostic antibodies are highly moisture-sensitive. Placing a 1g sachet inside each reagent bottle or vial kit ensures stable, dry storage conditions from manufacturing through distribution — extending effective shelf life.
🩺 Mid-Size Medical Device Packaging
Catheters, sensor strips, wound care products, and other mid-size sterile devices need consistent low-humidity conditions inside their sealed pouches. The 1g sachet provides the right capacity for packaging volumes where smaller sachets fall short.
🔬 Laboratory Sample Storage
Lab samples, reference standards, and calibration materials stored in sealed containers benefit from a 1g molecular sieve sachet to prevent moisture-related degradation during long-term storage or shipment to testing facilities.
🔌 Industrial Electronics & Sensor Modules
Humidity-sensitive sensors, MEMS devices, and precision electronic modules require strict moisture control during storage and transit. A 1g sachet inside a sealed enclosure or shipping container keeps relative humidity well below the damage threshold.
Who Orders These?
- IVD & diagnostic manufacturers – protecting multi-test trays and reagent kits
- Pharmaceutical & biotech companies – moisture control for reagent bottles and vials
- Medical device packagers – mid-size sterile device pouches and trays
- Laboratory supply distributors – sample and standard storage
- Industrial electronics manufacturers – sensor and module packaging
Frequently Asked Questions
How fast does it ship?
All orders ship from our US warehouse. Most orders are processed within 1–2 business days. No overseas shipping delays or customs clearance issues.
When should I choose 1g over 0.5g or 0.25g?
Choose the 1g sachet when your package volume is larger, your seal cycle is longer, or your application involves higher ambient humidity during storage or transit. A good rule of thumb: the larger the package interior, the more desiccant capacity you need.
What’s the difference between molecular sieve and silica gel?
Molecular sieve 4A outperforms silica gel at low humidity (below 20% RH) and has a faster adsorption speed. For diagnostic reagents, pharma, and other critical applications, molecular sieve is the industry standard choice.
Can these run on automated packaging lines?
Yes. The melt-seal edges and consistent sachet dimensions are designed for compatibility with high-speed automated packaging equipment.
What is the minimum order?
Minimum order is 300 pcs at $23.00. Larger quantities offer significantly lower per-unit cost — down to $0.036/pc at 10,000 pcs.
Can I order more than 10,000 pcs?
Yes. Please contact us with your required quantity and we will reply with a confirmed delivery date based on your order size.