In addition to improving the quality of our humidity indicator, Humidity Indicator Blue, containers of desiccant, we also need to develop more sales markets. Our mission is to adhere to the people-oriented, system management and professional services, committed to the value of the enterprise and the value of employees. Solution lists and thorough parameters and any other info will be sent for you timely for the inquiries. Our company considers quality as its lifespan, and sees real customer interests and our long-term development as one.
Silica dehumidifier bags who's chemical name is Silicon Dioxide (SiO2). It is odorless, tasteless, and nontoxic. This silica gel desiccant offers an excellent capacity for physical dehumidification because of its good absorb ability, chemical stability, wide surface area and high mechanical strength. Blue silica gel will change color into pink variably according to the quantity of Moisture absorbs, and orange silica gel will change color into green. They are generally mixed together to indicate the Saturation degree of desiccant. Silica gel desiccant is the most common type of moisture absorbent in the market and it is widely used for various kinds of industries.
1g 2g 3g 10g 20g 50g 100g 500g DMF free silica gel desiccant of Single pack Chemical Auxiliary Agent Silica Adsorbent


Features
Absorbs humidity and condensation in your vault
Reusable crystals recharge in the oven
Crystals change color once fully saturated
Breathable bag can provides 360º of protection
Description
Item | Silica gel desiccant sachets |
Bead size | 2-4mm |
Color | White,blue and orange |
Net weight | 1-1000g |
Packing matering | Composite paper,cotton paper,OPP,tyvek paper and AIhua paper |
Outer package | Paper cartons or can |
Moisture Content | 5% |
Moisture Adsorption | 25%,RH=20%,>10% 25%,RH=40%,>20% 25%,RH=90%,>30% |
Certification | MSDS,DMF Free,SGS,ROHS,ISO9000 |
Product Display




Application

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. |
We manufacture in strict conformity with industry standards, and the quality of our Bulk Silica Gel Blue Indicator Desiccant has a superiority that other brands cannot match. We are eagerly waiting for your sincerely cooperation. The company adheres to the business philosophy of 'no quality, no tomorrow'.

