Welcome to consult us for support product knowledge and technical solutions
Orange Silica Gel Bead 1-3/2-4/3-5 mm
See more pictures

● Suitable for electronic, optical equipment, leather products, food, medicine, etc

● No DMF, meet RoHS REACH standard, halogen free

● High absorbability, effective absorption of more than 30% of its own weight of moisture

● Will not change its shape after damp, can be reused

- +
- +
- +

Product Detail
Feedback Now


Product Information

Silica gel is a granular, vitreous, porous form of silicon dioxide made synthetically from sodium silicate. Silica gel contains a nano-porous silica micro-structure, suspended inside a liquid. Most applications of silica gel require it to be dried, in which case it is called silica xerogel. For practical purposes, silica gel is often interchangeable with silica xerogel. Silica xerogel is tough and hard; it is more solid than common household gels like gelatin or agar. It is a naturally occurring mineral that is purified and processed into either granular or beaded form. As a desiccant, it has an average pore size of 2.4 nanometers and has a strong affinity for water molecules.



Orange silica gel, also known as "cobalt-free color-changing silica gel", is also an environmentally friendly desiccant and belongs to silicone products. The appearance is orange or translucent glass-like particles. It has strong moisture absorption capacity and its appearance color will produce obvious color changes with the increase of moisture absorption during the moisture absorption process.It can be used as a raw material for environmentally friendly desiccants.


Blue silica gel, also call "Color-changing silica gel " is an indicator adsorbent with high added value and high technical content after deep processing, which is made from fine porous silica gel, a highly active adsorbent.

Blue silica gel is ideal as a primary desiccant or blended with other desiccants in any application where visual control of moisture is required. sSORB silica gel beads are saturated with a moisture indicating solution that gives them a deep blue color when dry. The color changes from blue to purple to pink as it adsorbs moisture.


Technical Data

Item name Silica gel raw material
Material Silica gel
Color White, orange or blue
Diameter 1-3 mm, 2-4 mm, 3-5 mm, 0.5-2 mm are available
Packing material Fiber bag
Packing way 25kg / fiber bag
Shape Ball or broken


Item Indicative Blue Silica Gel Color Changing Silica Gel Blue Silica Gel Typical Value
Moisture Absorption
RH=20 % 8 -- -- 8.5
RH=35 % 13 -- -- 13.6
RH=50 % 20 20 18 22.5
RH=90 % -- -- 28 31.4
Wear Rate % 10 10 10 0.5
Ratio of Size Qualified % 96 90 90 97
Heat Loss % 5 5 5 0.9
Color Change RH=20 % Blue or light blue -- -- Qualified
RH=35 % Purple or amaranth -- -- Qualified
RH=50 % Pink Pink Light blue or pink Qualified

Chemical component

Chemical Components Percentage(%)
SiO2 (wt%) 99.7
Fe2O3 (wt%) 0.01
Al2O3 (wt%) 0.09
CaO (wt%) 0.15
MaO2 (wt%) 0.05


● Drying and cleaning of air and gases

● Drying of analytical samples

● Drying of solvents

● Drying of synthesis products

● Optical instruments and devices

● Protection of Export Consignments from moisture in salty atmosphere

● Drying and storage of Flowers and Seeds

● Desiccant in gas industry, dehydration and purification in Oxygen, Hydrogen and Chlorine

● In steel refinery industry and oxygen plant ,it can be used to remove ethane from oxygen, etc

● Silica Gel is also used in Dehumidifier. Desiccant Dehumidifier white silica gel is used

● Silica Gel is also used in Analysis of Chemicals

Our Service

● We provide customized specifications.

● We have professional QC team to ensure your product more better.

● Profession SOP from starting raw material to final product.

● Have the strict inspection during the processing.

● Make the 100% inspection before the shipments.

High Quality

Passed the ISO9001:2008 quality system authentication and ROHS authentication.

Our Advantage

● 18 years experience in desiccant industry. We are a high-tech enterprise integrating scientific research, production, marketing, technical services, packaging consulting, quality testing, and providing moisture-proofing solutions.

● Independent R&D wrapping paper of desiccants---Detuch paper(which is eco-friendly, water-proof, dust-proof, smooth, lint-free)

● Workshop Display - more than 200 desiccants' machines. Foshan, Shanghai, Shenzhen, HongKong, Germany all we have set sales and branch services can satisfy your requirement.

● Technique research development---Participate in formulating and revising industry standard and national standard about desiccants & oxygen absorber, organizing colloquias with leading enterprises in various industries, providing professional solutions.

All prototype products have to go through 4 checks in the whole process:

1. Raw material inspection

2. In processing inspection

3. Final inspection

4. Outgoing inspection


Q: What's the warranty?

A: Usually , Warranty 2 years

Q: What's the payment term

A: T/T, Western Union, L/C ,Paypal

Q: What is your MOQ

A: 1 carton

Q: Do you offer free sample

A: Yes, free sample available, freight collected

Q: What's the lead time

A: 5-7 days after payment checked, big qty will be negotiated.

Send your message to us:
Chat with Topcod
already 1902 messages

  • Topcod 15:51.PM  Oct.29,2022
    Hello, dear sir/madam, welcome to our website! I'm Topcod, how should I address you?