Foshan Weller Moisture Proof Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of blue silica gel desiccant in China. If you're going to wholesale high quality blue silica gel desiccant, welcome to get free sample and discount information from our factory. We also accept customized orders.

China Blue Silica Gel Desiccant manufacturers and suppliers since 2009, with our own factory. Accept wholesale, OEM, ODM orders. Provide custom solutions.

Blue Silica Gel Desiccant Manufacturers

Blue Silica Gel Desiccant suppliers

This blue silica gel desiccant combines excellent moisture absorption, environmentally friendly design, and wide applicability. It can provide more convenient and efficient moisture-proof support in various environments. By adding an color indicator, you can easily determine the moisture absorption status. If your product requires long-term drying protection, then this desiccant would be a wise choice.

Parameter	Specification
Product Name	Blue Silica Gel Desiccant
Appearance	Small beads or granules, blue color
Material	Amorphous silicon dioxide impregnated with cobalt chloride
Adsorption Capacity	Up to 30-40% of its own weight
Particle Size	1-3 mm,2-5 mm; or customized
Moisture Content	≤ 5%
pH Value	Neutral; 4-8
Bulk Density	700–800 kg/m³
Regeneration	Heat at 100°C–120°C
Humidity Indicator	Color shift from blue (dry) to pink (moist)
Application Areas	Electronics, pharmaceuticals, leather, food, etc.
Safety	Non-toxic but cobalt chloride is classified as hazardous
Packaging	25kg bags or customized packaging as required

Add Color Indicator

We added a moisture indicator, cobalt chloride (CoCl₂), to our blue silica gel desiccant. So you can see the moisture absorption status of the desiccant visually through the color change. When the silica gel is dry, it looks blue. When it is saturated with moisture, it turns light pink. The color change can more visually indicate when you need to replace or regenerate the desiccant.

During the production process, we strictly follow environmental standards. The chemical composition meets the requirements for safe use. Under normal use conditions, this desiccant does not release toxic substances. After regeneration treatment, the desiccant can be reused.

Hygroscopicity

This blue silica gel desiccant has excellent hygroscopicity. Its moisture absorption rate can be as high as 30%-40% of its own weight. Due to its large number of pores on the surface, it can maintain the dry state of the surrounding environment for a long time. There is no need to frequently replace the desiccant. This feature greatly improves the convenience of use.

Applicable Products and Fields

Our blue silica gel desiccant is widely used in products and fields that require strict humidity control. It can effectively prevent corrosion, mold and quality degradation caused by environmental moisture.

The following are common application directions：

1. Electronic Products: electronic devices, such as circuit boards, chips, optical materials, etc.

2. Instruments and Equipment: instruments, precision mechanical equipment

3. Food Packaging

4. Medical Field: especially suitable for capsules and tablets that require humidity isolation.

5. Home Moisture-Proof: wardrobes, shoe cabinets, storage boxes, etc.

OEM and ODM services

We are a professional manufacturer and supplier with our own factory. We provide OEM and ODM services to meet the special needs of customers in different industries. You can directly print your brand logo on the product packaging to enhance your brand image. In addition, we can design and develop unique blue silica gel desiccant products according to your specific requirements. For example, you can customize the particle size, adsorption performance, packaging specifications, etc. We provide flexible delivery and professional technical support. Believe that we can help you achieve the best humidity control solution.

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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.

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.