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

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

Moisture Absorbent Silica Gel Manufacturers

This moisture absorbent silica gel is a highly efficient desiccant designed to protect your products from moisture damage. Made from premium-grade silica gel beads, it rapidly absorbs ambient humidity, preventing mold, corrosion, oxidation, and spoilage. Ideal for electronics, pharmaceuticals, food storage, industrial packaging, and household use, it ensures long-lasting dryness and preservation.

Noted: We can custom desiccant for specific application.

Parameter	Description
Product Name	Moisture Absorbent Silica Gel
Absorption Capacity	This silica gel has an absorption capacity of 30-40% of its own weight.
Particle Size	It ranges from 1-8 mm, available in granular or bead form. Or per customer requirement
Moisture Adsorption	It adsorbs moisture effectively in relative humidity of 20-90% RH.
pH Value	4-8
Humidity Indication	Blue or orange
Operating Temperature	It works efficiently between -40°C to 200°C.
Bulk Density	Approximately 700–800 kg/m³.
Packaging	Available in small sachets, bulk bags, or industrial-grade containers.Or per customer requirement
Lifespan	It can be regenerated for reuse at 120°C-150°C heating.

Moisture Absorption Capacity

Under the standard environment of 25℃ and relative humidity (RH) 90%, its mrate can reach 30%~40%. That is, every 100 grams of moisture absorbent silica gel can absorb 30~40 grams of water. In a medium humidity environment of RH=50%, the rate is about 15%~20%. Its speed is extremely fast. It can absorb more than 80% of the saturated water within 2 hours. It basically reaches full saturation within 24 hours. Its performance covers a wide humidity range of 20%~90% RH. Moreover, this desiccant has stable performance in the temperature range of -40℃~200℃. After moisture absorption, it can be completely regenerated by heating at 120℃ for 2~3 hours. After repeated use, the moisture absorption rate decays by less than 5%.

Key Features

1. High Absorption Capacity

It absorbs up to 40% of its weight in moisture (at 25°C, 90% RH).

2. Fast-Acting

It reaches 80% saturation within 2 hours in high-humidity environments.

3. Reusable & Eco-Friendly

It can be regenerated by heating (120°C for 2-3 hrs) or sun-drying for repeated use.

4. Non-Toxic & Safe

FDA & EU compliant. This moisture absorbent silica gel is suitable for food, medicine, and sensitive products.

5. Wide Operating Range

Effective in 20%-90% RH and stable from -40°C to 200°C.

Application Scenarios

Electronic Products: protection for cameras, lenses, and mobile phones, etc.
Food Industry: moisture and freshness protection for dry goods, snacks, and pet food, etc.
Medical Supplies: moisture and mildew protection for medicine bottles and medical devices, etc.
Home Storage: dehumidification and odor prevention for wardrobes, shoe cabinets, and drawers, etc.
Industrial Transportation: moisture and rust protection for containers and sea freight, etc.

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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.