Premium White Silica Gel Beads for Moisture Control in Food Bags Shoes
Product Specifications
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Product Highlights
- Food Grade Safety: Complies with FDA and HG/T2765-2005 standards, ensuring safe direct food contact.
- High Adsorption Capacity: Absorbs 30-80% of its weight in water vapor without liquefying or deforming.
- ISO 9001 Certified: Manufactured under a guaranteed quality management system compliant with ISO 9001.
- Versatile Applications: Suitable for food preservation, shoe dehumidification, and industrial humidity control.
- Customization Available: Offers full, minor, and flexible customization from samples or designs.
- High Purity Content: Contains 98% SiO2 with low moisture content of 2% to 5%.
- Microporous Structure: 8-10 nm pores statically trap moisture without chemical reactions.
Product Attributes
- Customization
- Available
- CAS No.
- Sio2/Al2O3
- Formula
- Sio2/Al2O3
- Model NO.
- RJ-2928
- EINECS
- Sio2/Al2O3
- Shape
- Sphere
- Drying Method
- Static Drying
- Kind
- Silica-Gel Desiccant
- Sorbent
- Silica Gel
- Desiccant
- Physical Desiccant
- Loss on Heating
- <5%
- Amount of Adsorption Rh80% >3
- >30%
- Particle Size Pass Rate
- >90%
- Certification
- ISO9001
- Purity
- 98%
- Abrasion Rate
- 4%
- Transport Package
- Package
- Specification
- 1.5-2.5mm, 1.1-1.5mm
- Trademark
- RONGJIAN
- Origin
- China
- Package Size
- 110.00cm * 100.00cm * 100.00cm
- Package Gross Weight
- 25.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description



Non-toxic & Certified: Complies with FDA (U.S. Food and Drug Administration) and Chinese standard HG/T2765-2005, ensuring direct food contact safety. It is also SGS-certified for environmental friendliness.
Chemical Stability: Resistant to temperatures from -60°C to 250°C and inert to most substances except strong acids/bases, making it reliable for diverse environments.
2. Functional Features
High Moisture Absorption: Can absorb 30–80% of its own weight in water vapor without liquefying or deforming, thanks to its physical adsorption mechanism.
Microporous Structure: Silica gel's pores (8–10 nm) statically trap moisture without chemical reactions, ensuring stable performance.
3. Applications
Food Preservation: Prevents clumping/mold in dry goods like rice, seasonings, and snacks.
Daily Use: Effective for dehumidifying wardrobes, shoes, and electronics.
Industrial Uses: Humidity control in pharmaceuticals, precision instruments, and military equipment.

Product name | White silica gel | |||
Itme | Technical specification | |||
Bulk Density | ≥0.72g/cm3 | |||
Adsorption Capacity | RH=20% | ≥10.5% | ||
RH=50% | ≥23% | |||
RH=80% | ≥36% | |||
Abrasion Rate | ≤4% | |||
SiO2 | ≥98% | |||
Moisture | ≤2% or ≤5% | |||
Size | 1-3mm,2-4mm,3-5mm,4-8mm | |||





Headquarters: Xiangdong District Industrial Park, Pingxiang City, Jiangxi Province, China
Core Capabilities
Advanced Manufacturing: Custom-designed towers and systems in ceramic, metal, and plastic materials.
Comprehensive Product Portfolio: 200+ specifications including:
• Ceramic/metal/plastic packing materials
• Molecular sieves & activated alumina
• Catalysts & petrochemical additives
• Activated carbon & eco-friendly filtration media
Turnkey Services: Full-scale pollution control and wastewater treatment projects.
Corporate Strengths
ISO 9001 Certified - Guaranteed quality management system compliance.
300+ Workforce - Including 100+ specialized engineers and technicians.
30-Acre Production Base - Integrated R&D and manufacturing facilities.
Awards & Innovations
National Science & Technology Achievement Award
Provincial Gold Medal & Famous Brand Product
17 Patented Technologies - Protecting proprietary advancements.




About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI249998". Items marked "" are certified.
Company Profile
Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd.
Company Profile
Established in 2010, Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd. is a high-tech enterprise specializing in the R&D, production, and sales of chemical packing and environmental protection materials. After 14 years of rapid development, the company has become a leading global supplier of industrial packing materials, with products exported to over 100 countries and regions. We employ more than 300 staff, including nearly 100 technical professionals, forming a highly skilled and experienced R&D and production team.
Corporate Strength & CertificationsAuthorized Certifications: Certified with ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health & Safety Management System.
Technological Leadership: Holds 17 national patents and has been awarded multiple national-level "High-Quality Product" titles.
Production Capacity: Modern manufacturing facilities with an annual output exceeding 10, 000 tons, capable of meeting large-scale global demand.
Core Products & ApplicationsOur main products include:
Ceramic Packing: Ceramic balls, structured ceramic packing, and random ceramic packing, featuring high-temperature resistance, corrosion resistance, and durability for harsh industrial conditions.
Adsorption & Catalytic Materials: Molecular sieves, catalysts, and activated alumina, widely used in petrochemical and gas purification industries.
Environmental Filtration Media: Activated carbon and filtration materials for wastewater and exhaust gas treatment.
Metal & Plastic Packing: Lightweight and corrosion-resistant structured/random packing for diversified industrial needs.
These products are extensively applied in domestic industries such as power generation, petroleum, chemical processing, metallurgy, environmental protection, and pharmaceuticals, as well as in high-end sectors including aerospace. They are also exported to Europe, North America, Southeast Asia, the Middle East, and other global markets, earning long-term trust from customers for their superior quality.
Quality & Service CommitmentAdhering to the principle of "Quality First, Innovation Driven, " we implement strict quality control from raw material selection to production, ensuring stable and reliable product performance. We provide customized solutions, technical consultation, and after-sales support to deliver lasting value to our clients.
Vision for the Future
Rongjian Environmental Protection will continue to innovate in the field of industrial packing materials, promoting sustainable industrial development through advanced technology, and striving to become the most trusted global partner for our customers.
About Our Factory & Business Background
- Address
- No. 1-269, Zone B, Xiangdong Industrial Park, Xiangdong District, Pingxiang, Jiangxi, China
-
Terms of Payment
- T/T, Western Union
- International Commercial Terms(Incoterms)
- FOB, EXW, CIF, DAP, FCA
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 1 Ton
-
Supply Chain Partners
- 1
Our Production Capability & Technical Expertise
- Main Products
- Ceramic Ball, Pall Ring, Molecular Sieve, Honeycomb Ceramic, Activated Alumina, Structured Packing, Metal Random Packing, Plastic Random Packing, Ceramic Random Packing
-
Production Lines
- 2
-
Production Machines
- Furance, Electric Kiln, Drying Furnace, Screening Machine
-
QA/QC inspectors
- 3 people
-
Inspection Type for Finished Products
- Random inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instruction but no written records
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
OEM Service Available
- Yes
-
R&D Engineers
- 5 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Export Year
- 1 Years
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Eastern Asia, Western Europe
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 5
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015, ISO14001, ISO45001:2018
FAQ
- Is this silica gel safe for food contact?
- Yes, it is food grade and complies with FDA and Chinese standard HG/T2765-2005.
- What is the moisture absorption capacity?
- It can absorb 30-80% of its own weight in water vapor without deforming.
- What are the available particle sizes?
- Available sizes include 1-3mm, 2-4mm, 3-5mm, and 4-8mm.
- What is the minimum order quantity?
- The minimum order quantity is 1 Ton.
- Do you offer customization services?
- Yes, we offer full, minor, and flexible customization from samples or designs.
- What is the delivery lead time?
- Average lead time is within 15 workdays for both peak and off-season.
- What certifications does the product have?
- The product is ISO 9001 certified and SGS certified for environmental friendliness.
- What are the payment terms?
- We accept T/T and Western Union as payment methods.
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