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| Graininess | The most common form is irregular or nearly spherical small particles. Larger specific surface area and faster moisture absorption rate. |
| Spherical | Regular balls made by granulation process. Good fluidity, beautiful appearance, more uniform filling during packaging, and less dust. |
| Strip / Block Shaped | Rarely seen, usually used for specific devices or spaces. |
| 1-2 mm | The most commonly used size, suitable for the vast majority of small packaging (such as electronic products, food bags). |
| 2-4 mm | |
| 4-8 mm | Used for slightly larger spaces such as luggage, shoe boxes, and small to medium-sized packaging boxes. |
| Coarse-grained (>8 mm) | Less commonly used for direct packaging; powder form may be used for filling special composite materials. |
| Fine Powder |
This is the most direct specification parameter selected by the user, determined based on the size of the packaging container and moisture resistance requirements. Weight does not represent its performance limit, but rather a convenient packaging for standard application scenarios.
| Specifications | Use | |
| Micro / Small Sized | 1g / 2g / 3g / 5g / 10g | Extremely small spaces such as small medicine bottles, small electronic product bags, cosmetic samples, camera lens covers, etc. |
| Standard Specification | 20g / 30g / 50g / 100g | This is the most widely used interval. Suitable for shoe boxes, handbags, toolboxes, instrument boxes, medium-sized food packaging, suitcases, etc. |
| Medium Size Specification | 200g / 500g / 1000g | Large packaging boxes, container drying rods/bags, warehouse shelves, wardrobes, small enclosed spaces (such as safes, Gun Safe). |
| Large / Industrial Specifications | 5kg / 10kg and above (usually bagged or barreled loose materials) | Used for internal filling of large equipment, large-scale container loading, moisture-proof storage of industrial raw materials, or as a raw material for recycled desiccants. |
| Field | Use |
| 🍜 Food Industry | Packaging for snacks, dry goods, tea, seafood, etc. |
| 👟 Clothing, Footwear & Headwear | Prevent clothing, leather, and shoes from getting damp and moldy during storage and transportation. |
| 🎁 Household Items | Gift boxes, toolboxes, storage cabinets, wardrobes, etc. |
| 💡 Electronic & Electrical Appliances | Moisture-proof packaging for lightweight electronic products. |
| 🚢 Storage & Transportation | Container and container moisture prevention to prevent "container rain" of goods. |
| ⚙️ General Industrial Products | Rust-proof packaging for hardware, mechanical parts, and instruments. |
| Characteristic | Bentonite Desiccant | Silica Gel Desiccant | Calcium Chloride Desiccant |
| Main Ingredient | Natural bentonite | Synthetic silica gel | Calcium chloride |
| Moisture Absorption Principle | Physical adsorption (reversible) | Physical adsorption (reversible) | Chemical adsorption (deliquescence, conversion) |
| Low Humidity Effect | Optimal (<50% RH) | Good | General |
| Environmental Friendliness | Excellent, naturally treatable | Good, but it is a synthetic product | Generally, solutions have weak corrosiveness |
| Safety | High (non-toxic), safe and inert | High (non-toxic), safe and inert | Moderate (with irritability) |
| Cost | Minimum | Medium | Low (but with low unit moisture absorption cost) |
| Typical Color Variation | Color deepens; particles become damp | Orange/Blue → Colorless/Pink | Particles → Solution |
| Best Operating Environment | Normal temperature and humidity, short-term moisture resistance | Widely used, especially precision instruments | High humidity environment, sealed space |
