Foshan Weller Moisture Proof Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of silica gel pellets in China. If you're going to wholesale high quality silica gel pellets, welcome to get free sample and discount information from our factory. We also accept customized orders.
China Silica Gel Pellets manufacturers and suppliers since 2009, with our own factory. Accept wholesale, OEM, ODM orders. Provide custom solutions.


Our silica gel pellets are an ideal choice for industrial and household moisture protection due to their excellent moisture absorption performance, flexible color indication system and green safety features!
Pellets Design Features
Our silica gel pellets are made of high-purity silicon dioxide material. They are processed into uniform small particles by special process. These small particles have the following design advantages:
1. High Porosity Structure
The internal porous design provides a large specific surface area, which significantly improves the moisture absorption efficiency.
2. Uniform Particle Size
Particles with uniform size. Convenient for filling and use. They are suitable for all kinds of drying containers and equipment.
3. Low Dust
Optimized surface. They can reduce the dust generated by friction and keep the environment clean.
4. Strong Durability
After moisture absorption. These silica gels can be regenerated by heating. They can be reused, economical and environmentally friendly.
Color Selection and Applicable Scenarios
These silica gel pellets provide a variety of color options. Different colors represent different characteristics, to meet diverse needs:
1. Transparent/Translucent/White
Standard type. Strong versatility. Suitable for daily moisture protection of electronic products, instruments, pharmaceutical packaging, etc.
2. Blue (Blue to Pink)
Indicator type. It intuitively displays the moisture absorption status. It is commonly used for precision instruments, laboratory desiccants or sensitive material storage.
3. Orange (Orange to Dark Green)
Efficient indicator type. Stronger moisture absorption capacity. Suitable for high humidity environments such as shipping containers and warehouses.
Hygroscopicity and Performance
1. Moisture Absorption Rate
At 25℃ and 90% relative humidity, the moisture absorption can reach 30%-40% of its own weight.
2. Quick Response
After contact with humid air, these silica gel pellets can quickly absorb moisture, and effectively reduce the humidity in a confined space.
3. Temperature Adaptability
In the range of -40℃ to 200℃, they maintain stable performance. And they are suitable for a variety of climatic conditions.
4. Regeneration Ability
After absorbing moisture, these silica gels can be reactivated by heating at 80℃~120℃ for 2~4 hours. They can be recycled many times.
Safety and Environmental Protection
1. Non-toxic and harmless. It meets FDA and EU standards. The food-grade models can come into direct contact with food and medicine.
2. Chemically inert. It will not react with other substances.
3. Environmentally friendly. Degradable. After disposal, it does not pollute the environment.
Application Scenarios
Our silica gel pellets can be applied to many scenarios, including but not limited to the following:
1. Electronic devices and optical equipment
2. Drugs, health products, and food
3. Clothing, shoes, hats, leather products
4. Automotive components and military products
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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. |

