After hard work and innovation, and years of professional accumulation, our company has developed into the largest silica gel for preserving flowers, food safe desiccant, moisture absorbing packets manufacturer in China. Our company has established high-quality sales network and after-sales service in many provinces and regions, and used flexible market operation mechanism to make our products sell well all over the world. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Welcome any of one's inquiries and concerns for our items, we glance forward to creating a long-term business enterprise marriage along with you while in the around long run.
China White Silica Gel Beads manufacturers and suppliers since 2009, with our own factory. Accept wholesale, OEM, ODM orders. Provide custom solutions.
These white silica gel beads are a highly efficient and eco-friendly desiccant made from high-purity silicon dioxide (SiO₂). Featuring a microporous structure, they rapidly absorb moisture from the environment, ensuring dryness and protection for sensitive items.
Parameter | Specification |
Product Name | White Silica Gel Beads |
Appearance | White spherical beads |
Particle Size | 1-3 mm / 2-4 mm / 3-5 mm (customizable) |
Bulk Density | 650-700 kg/m³ |
Moisture Adsorption (20% RH) | ≥10% |
Moisture Adsorption (90% RH) | ≥30% |
Saturated Moisture Uptake | ≥35% |
Temperature Resistance | -40°C to 200°C |
pH Value | 6-7 (neutral) |
Surface Area | 600-800 m²/g |
Initial Moisture Content | ≤5% |
Packaging Material | Non-woven fabric / Tyvek® / laminated film (optional) |
Packaging Sizes | 1g / 5g / 10g / 50g / 500g / 1kg, etc. |
Applications | Electronics, pharmaceuticals, food, precision instruments, storage, etc. |
Flexible Application
1-4mm particle size optional. Small beads are suitable for micro packaging, such as medicine bottles. Large beads are used for industrial dehumidification. Support custom indication function (blue to pink /orange to green) to visually display saturation.
Moisture Absorption Capacity (Tested at 25°C)
Relative Humidity (RH) | Absorption Rate (% by weight) | Performance Notes |
20% RH | ≈6% | Effective even in low humidity |
50% RH | ≈15% | Ideal for general moisture protection |
80% RH | ≈25% | High efficiency in humid conditions |
90% RH | ≥30% | Maximum capacity (regeneratable) |
Beads Design
Uniform spherical particles. Large specific surface area. Fast moisture absorption rate. Its saturated moisture absorption rate can reach more than 30% (90% RH environment), far exceeding fiber or clay desiccant. The gap between the beads is uniform to ensure air circulation. Thus, the white silica gel beads can quickly balance the humidity in a closed space, and achieve precise humidity control.
Safety and Adaptability
Our white silica gel beads have significant advantages in safety and adaptability. Firstly, it adopts a neutral dust-free design, and it meets FDA food contact standards. Therefore, this desiccant can be directly used in areas with strict hygiene requirements, such as food and medicine, ensuring high safe and worry-free use.
Secondly, these beads have a unique spherical particle structure and a smooth surface without edges and corners. During the moisture-proof process, it will not damage precious items such as precision instruments and optical lenses due to friction, achieving a perfect combination of safety protection and item protection.
Regeneration Capability and Cost Advantage
These white silica gel beads can be fully regenerated by heating at 105℃-120℃ for 2-3 hours. The recovery rate is over 95%. It can be reused many times without affecting the moisture absorbing effect. Combined the recyclable feature with its efficiency of up to 30%, this desiccant reduces the long-term use cost by more than 60%, compared with traditional desiccants. Therefore, it is particularly suitable for industrial production and storage scenarios that require continuous moisture protection, achieving a perfect balance between efficient moisture protection and economy.
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.
Product Range | moisture-proof, mildew-proof, odor-proof and rust-proof products. |
Applications | designed for residential, commercial and industrial use. used for product packaging, transportation, and warehousing in different industries. |
Service | Accept wholesale, OEM, ODM orders; Provide custom solutions. |
Certifications | SGS, RoHS, REACH, FDA, DMF; SIMT,MIL-D-3464E, DIN55473, ISO9001, ISO14001, BSCI. |
Product Details and Summary
Product Type | silica gel desiccant (moisture absorbing material) |
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) |
Indicator Function | You can choose silica gel with color indication function, to achieve a more convenient reminder function. |
Main Components | silicon dioxide (SiO₂); Content ≥ 98% |
Appearance | granular, spherical, powdered, beads crystals, sand, etc. |
Colors | transparent, translucent, white, blue, or orange |
Particle Size | 1-3mm, 2-4mm, 3-5mm; or custom sizes |
Bulk Density | approximately 700-800 kg/m³ |
Surface Area | 700-800 m²/g |
Pore Volume | 0.4-0.8 cm³/g |
Applicable Humidity Level | 20%-90% RH |
Operating Temperature Range | -40 ℃ to 200 ℃ (long-term stability) |
Maximum Moisture Absorption Rate | 30%-40% of its own weight |
Physical Properties | stable internal structure. no expansion or liquefaction. not easily crushed. dust-free. |
pH | 4-8 |
Chemical Properties | chemically inert; It will not chemically react with the inside products. |
Human-Friendly Feature | odorless and non-toxic. It meets food grade standards. |
Environmentally Friendly Feature | using packaging paper and materials that are biodegradable within two years. It can be discarded for use as fertilizer. |
Regeneration Temperature | 80℃-150 ℃ ( It can be reused after heating for 2-4 hours.) |
Packaging Material | breathable material with strong sealing properties. You can customize packaging materials according to your needs. |
Printing | You can custom printed text, pictures, logo for better brand images. |
Packaging Capacity | 1g, 2g, 5g, 10g, 50g, 100g, 500g, 1000g; or custom capacity |
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. |
Our company always focus on devloping the concept of 'Ability comes from Quality', and continues to reform technique and management and has set up offices in many cities at home and aboard. We will try our best to meet the requirements from worldwide customers with high-quality Marco-Pore and Micro Granualr / Bead for Silica Gel and good after-sales service. Under the guidance of the corporate philosophy of striving for excellence and creating brilliance together, we focus on details and let high quality be reflected in every product. Our company pays attention to the standard management, continuously introduces the mature management idea and enhances own management level and the competitive ability.