Foshan Weller Moisture Proof Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of dehumidifier silica gel in China. If you're going to wholesale high quality dehumidifier silica gel, welcome to get free sample and discount information from our factory. We also accept customized orders.
China Dehumidifier Silica Gel manufacturers and suppliers since 2009, with our own factory. Accept wholesale, OEM, ODM orders. Provide custom solutions.
This dehumidifier silica gel is specially designed for various dehumidification needs. It is a high-performance hygroscopic material with high-purity silicon dioxide (SiO₂) as its core component. This desiccant quickly absorbs moisture from the environment through the principle of physical adsorption. Therefore, it can effectively prevent moisture, mildew and oxidation.
Noted: We can custom silica gel desiccant for specific application.
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Parameter |
Details |
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Product Name |
Dehumidifier Silica Gel |
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Main Composition |
High-purity Silicon Dioxide (SiO₂, ≥98%) |
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Appearance |
Transparent or semi-transparent beads (optional color-indicating: blue/orange) |
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Particle Size |
0.5-1mm (precision use), 1-3mm (standard), 3-5mm (industrial); or custom sizes |
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Moisture Absorption |
≥20% at RH50%, ≥35% at RH90% (at 25°C) |
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Saturation Capacity |
30%-40% (by weight) |
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Operating Temp. |
-40°C to +200°C (stable under extreme conditions) |
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Regeneration Temp. |
110°C-120°C (heat for 2-3 hours) or sunlight exposure (6-8 hours) |
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pH Value |
Neutral (6-7), non-corrosive |
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Flammability |
Non-flammable; It meets fire safety standards. |
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Certifications |
FDA (food-grade), ROHS, REACH (free of heavy metals/harmful substances) |
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Packaging Options |
5g/10g/50g (small bags), 100g/500g/1kg (jars/boxes), 25kg (bulk industrial); or custom packaging |
Moisture Absorption
Under standard conditions (25°C), this dehumidifier silica gel exhibits the following performance:
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Relative Humidity (RH) |
Absorption Rate (% by weight) |
Time to Saturation (hours) |
Absorption Speed |
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30% |
8-12% |
48-72 |
Slow |
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50% |
18-22% |
24-36 |
Moderate |
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70% |
26-30% |
12-18 |
Fast |
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90% |
32-38% |
6-8 |
Very Fast |
Key Technical Parameters:
- Initial Absorption Rate: 0.25-0.35g water/hour per 100g silica gel (at RH60%)
- Maximum Water Retention: Up to 40% of its own weight
- Effective RH Range: 20%-90%
Performance Maintenance
1. Regeneration Cycles
- RH<50%: Regenerate every 120 days
- RH50-70%: Regenerate every 60 days
- RH>70%: Regenerate every 30 days
2. Regeneration Efficiency
- Oven Drying at 110°C: 2 hours to restore >95% capacity
- Sunlight Exposure: 8 hours to restore 85-90% capacity
- Maximum Regeneration Cycles: Up to 500 (while maintaining 80% initial capacity)
Product Features
1. Its moisture absorption rate is as high as 30%~40% (at 90% relative humidity). The dehumidification effect is far superior to ordinary desiccant.
2. It complies with international environmental standards (FDA, ROHS certification). It is odorless, non-toxic and non-corrosive. It can be safely used to prevent moisture from sensitive items such as food and medicine.
3. Heating (such as microwave, oven) or sunlight exposure. Simple operation can restore its dry state. Reusable. Economic and environmentally friendly.
4. High temperature resistance (≤200℃). Non-flammable and non-explosive. In extreme environments, this dehumidifier silica gel can still continue to absorb moisture. Stable performance.
5. We provide a variety of packaging forms (granules, bags, boxes, etc.), to adapt to different scenarios.
Application Scenarios
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Application Area of Dehumidifier Silica Gel |
Specific Use Cases |
Recommended Specifications |
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Home & Living |
Wardrobes/Shoe Cabinets/Drawers |
10-50g small packets |
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Basements/Storage Rooms |
500g-1kg boxes |
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Electronics |
Camera/Lens Dry Cabinets |
Dust-free 50-100g |
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Precision Instrument Storage |
1-3mm granules (5kg bulk) |
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Food & Pharma |
Dry Food/Herb Preservation |
Food-grade 5-20g packets |
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Medicine Cabinets/Medical Devices |
Blue indicator 100g |
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Transportation |
Shipping Containers |
Industrial 5-10kg bags |
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Car Interior Moisture Control |
Hanging 200g packs |
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Industrial Use |
Metal Parts Warehousing |
25kg bulk |
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Solar Panel Packaging |
Anti-static 500g packs |
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Special Cases |
Armory/Gun Safes |
Explosion-proof 1kg cans |
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Data Center Server Rooms |
Dedicated 1.5kg dehumidifiers |
Additional Notes
- High-Temperature/Humid Climates (e.g., tropics): Increase quantity by 20-30% and regeneration frequency by 50%.
- Long-Term Storage: Combine with vacuum sealing; Use 150% of standard quantity.
- Sensitive Items (e.g., antiques, PCBs): Pair this dehumidifier silica gel with humidity indicator cards.
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About Us
Foshan Weller Moisture-Proof Technology Co., Ltd. was established in 2009. We are a professional manufacturer and supplier in China, with an factory of over 8,000 square meters.
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Product Range |
moisture-proof, mildew-proof, odor-proof and rust-proof products. |
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Applications |
designed for residential, commercial and industrial use. used for product packaging, transportation, and warehousing in different industries. |
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Service |
Accept wholesale, OEM, ODM orders; Provide custom solutions. |
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Certifications |
SGS, RoHS, REACH, FDA, DMF; SIMT,MIL-D-3464E, DIN55473, ISO9001, ISO14001, BSCI. |
Product Details and Summary
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Product Type |
silica gel desiccant (moisture absorbing material) |
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Classification |
1. non-indicating silica gel 2. indicating silica gel (1) blue indicating silica gel (blue to pink; containing cobalt chloride) (2) orange indicating silica gel (orange to green; cobalt free and environmentally friendly) |
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Indicator Function |
You can choose silica gel with color indication function, to achieve a more convenient reminder function. |
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Main Components |
silicon dioxide (SiO₂); Content ≥ 98% |
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Appearance |
granular, spherical, powdered, beads crystals, sand, etc. |
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Colors |
transparent, translucent, white, blue, or orange |
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Particle Size |
1-3mm, 2-4mm, 3-5mm; or custom sizes |
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Bulk Density |
approximately 700-800 kg/m³ |
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Surface Area |
700-800 m²/g |
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Pore Volume |
0.4-0.8 cm³/g |
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Applicable Humidity Level |
20%-90% RH |
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Operating Temperature Range |
-40 ℃ to 200 ℃ (long-term stability) |
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Maximum Moisture Absorption Rate |
30%-40% of its own weight |
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Physical Properties |
stable internal structure. no expansion or liquefaction. not easily crushed. dust-free. |
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pH |
4-8 |
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Chemical Properties |
chemically inert; It will not chemically react with the inside products. |
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Human-Friendly Feature |
odorless and non-toxic. It meets food grade standards. |
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Environmentally Friendly Feature |
using packaging paper and materials that are biodegradable within two years. It can be discarded for use as fertilizer. |
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Regeneration Temperature |
80℃-150 ℃ ( It can be reused after heating for 2-4 hours.) |
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Packaging Material |
breathable material with strong sealing properties. You can customize packaging materials according to your needs. |
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Printing |
You can custom printed text, pictures, logo for better brand images. |
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Packaging Capacity |
1g, 2g, 5g, 10g, 50g, 100g, 500g, 1000g; or custom capacity |
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Storage |
It should be tightly sealed and stored in a cool, dry place; away from direct sunlight and chemical pollution. |
| Certifications | SGS, RoHS, REACH, FDA, DMF; SIMT,MIL-D-3464E, DIN55473, ISO9001, ISO14001, BSCI. |