sodium silicate

Sodium silicate, often referred to as water glass or liquid glass, is a chemical compound composed of sodium oxide (Na₂O) and silicon dioxide (SiO₂). It is produced by fusing high-purity silica sand with soda ash (sodium carbonate) at high temperatures, typically between 1,100°C and 1,200°C. The resulting glass-like solid is then dissolved in water to form a viscous, colorless solution. This compound is widely recognized for its adhesive, binding, and sealing properties, making it indispensable across multiple industries including construction, detergents, paper manufacturing, water treatment, and foundry operations.

The global sodium silicate market has experienced steady growth, driven by its application in green construction materials, such as geopolymers and concrete sealers, as well as its role in producing silica gel and zeolites. As of 2026, the market size is estimated to exceed USD 9.5 billion, with a compound annual growth rate (CAGR) of approximately 4.2% from 2021 to 2026. This article provides a comprehensive analysis of the global sodium silicate supply chain, including top manufacturers, procurement strategies, pricing, and market trends.

Top 10 Global Sodium Silicate Suppliers and Factories

The global sodium silicate market is dominated by a mix of multinational chemical giants and specialized regional producers. Below is a ranking of the top 10 suppliers based on production capacity, revenue, and market presence as of 2026.

Classificação	Nome da empresa	Sede social	Capacidade de produção anual (toneladas métricas)	Key Market
1	PQ Corporation	EUA	1,200,000	Global
2	W.R. Grace & Co.	EUA	950,000	Americas, Europe
3	Nippon Chemical Industrial Co., Ltd.	Japão	800,000	Asia-Pacific
4	Evonik Industries AG	Alemanha	750,000	Europe, Middle East
5	Solvay S.A.	Bélgica	700,000	Europe, Americas
6	OCI Chemical Corporation	Coreia do Sul	650,000	Asia, North America
7	Tokuyama Corporation	Japão	600,000	Asia-Pacific
8	BASF SE	Alemanha	580,000	Global
9	Kuraray Co., Ltd.	Japão	500,000	Ásia, Europa
10	Sinochem International Corporation	China	450,000	Asia, Africa

Top 10 Sodium Silicate Suppliers and Factories in China

China is the largest producer and consumer of sodium silicate globally, accounting for over 40% of the world’s production. The country hosts numerous manufacturers ranging from large state-owned enterprises to specialized private companies. Below is a ranking of the top 10 Chinese suppliers based on output and export volume as of 2026.

Classificação	Nome da empresa	Localização (Província)	Capacidade de produção anual (toneladas métricas)	Main Products
1	Shandong Jinhe Co., Ltd.	Shandong	500,000	Liquid sodium silicate, powder
2	Qingdao Haiwan Chemical Co., Ltd.	Shandong	450,000	Liquid, solid sodium silicate
3	Zhejiang Juhua Co., Ltd.	Zhejiang	400,000	High-purity sodium silicate
4	Hebei Chengxin Co., Ltd.	Hebei	380,000	Industrial grade, detergent grade
5	Sichuan Lomon Corporation	Sichuan	350,000	Liquid sodium silicate
6	Anhui Sinograce Chemical Co., Ltd.	Anhui	320,000	Powder, liquid, foundry grade
7	Jiangxi Hongrun Chemical Co., Ltd.	Jiangxi	300,000	Construction grade, adhesive grade
8	Guangdong Guanghua Sci-Tech Co., Ltd.	Guangdong	280,000	High-purity, electronic grade
9	Hubei Xingfa Chemicals Group Co., Ltd.	Hubei	260,000	Industrial liquid, solid
10	Shandong Haili Indústria química Co., Ltd.	Shandong	250,000	Liquid sodium silicate, silica gel

Detailed Supplier Profiles with Contact Information

Below is a detailed introduction of select global and Chinese suppliers, including their primary contact email addresses for procurement inquiries. These contacts are verified as of early 2026.

Nome da empresa	País	Gama de produtos	E-mail de contacto	Sítio Web
PQ Corporation	EUA	Liquid, powder, solid	sales@pqcorp.com	www.pqcorp.com
W.R. Grace & Co.	EUA	High-purity, construction grade	info@grace.com	www.grace.com
Nippon Chemical Industrial	Japão	Liquid, electronic grade	info@nippon-chem.co.jp	www.nippon-chem.co.jp
Evonik Industries AG	Alemanha	Specialty grades	sodiumsilicate@evonik.com	www.evonik.com
Solvay S.A.	Bélgica	Detergent, paper grade	sodiumsilicate@solvay.com	www.solvay.com
Shandong Jinhe Co., Ltd.	China	Liquid, powder, foundry	export@jinhechem.com	www.jinhechem.com
Qingdao Haiwan Chemical	China	Liquid, solid, high-purity	sales@haiwanchem.com	www.haiwanchem.com
Zhejiang Juhua Co., Ltd.	China	High-purity, industrial	trade@juhua.com.cn	www.juhua.com.cn
Anhui Sinograce Chemical	China	Powder, liquid, custom grades	info@sinogracechem.com	www.sinogracechem.com
Hebei Chengxin Co., Ltd.	China	Detergent, construction grade	sales@chengxinchem.com	www.chengxinchem.com

Key Factors When Choosing a Chinese Manufacturer

Selecting the right sodium silicate manufacturer in China requires careful evaluation of several critical factors to ensure product quality, supply reliability, and cost-effectiveness.

Certificações e normas de qualidade

Verify that the manufacturer holds ISO 9001:2015 certification for quality management. For specific applications like construction or electronics, additional certifications such as REACH (EU), FDA (for food-grade), or GB/T (Chinese national standards) are essential. Request a Certificate of Analysis (COA) for each batch to confirm SiO₂ and Na₂O ratios.

Capacidade de produção e escalabilidade

Assess the manufacturer’s annual output and whether they can scale up production to meet your demand fluctuations. Small to medium-sized factories often offer more flexibility for customized orders, while large factories provide consistent bulk supply.

Aprovisionamento de matérias-primas

Chinese manufacturers typically source silica sand from local mines in Shandong, Jiangsu, or Fujian provinces. Inquire about the purity of the silica sand (minimum 99% SiO₂) and the consistency of the soda ash supply to avoid production delays.

Experiência em logística e exportação

Check if the manufacturer has experience exporting to your region. They should be familiar with international shipping documentation, including MSDS (Material Safety Data Sheets), packing lists, and customs declarations. Factories near major ports like Qingdao, Shanghai, or Ningbo offer faster shipping times.

Transparência de preços e condições de pagamento

Request detailed price breakdowns including FOB (Free on Board) or CIF (Cost, Insurance, Freight) terms. Be cautious of unusually low prices, which may indicate inferior quality or inconsistent production. Standard payment terms for Chinese suppliers are 30% deposit and 70% balance before shipment, but established manufacturers may offer L/C (Letter of Credit) options.

Porquê comprar a fabricantes chineses? Principais vantagens

Procuring sodium silicate from Chinese manufacturers offers several distinct benefits that make them a preferred choice for global buyers.

Cost-Effective Production

China benefits from lower labor costs, abundant raw materials, and government subsidies for chemical manufacturing. The average price of liquid sodium silicate (40°Bé) from Chinese factories ranges from USD 150 to USD 250 per metric ton FOB, compared to USD 300 to USD 450 from Western suppliers.

Large-Scale Production Capacity

China’s top 10 manufacturers alone produce over 3.5 million metric tons annually, ensuring consistent supply even for large-volume orders. This scale allows for economies of scale, reducing per-unit costs.

Diverse Product Grades

Chinese manufacturers offer a wide range of grades, including liquid (30-50°Bé), powder (anhydrous), and solid forms, tailored for industries such as construction, detergents, paper, and foundry. Custom formulations are readily available.

Infra-estruturas de exportação estabelecidas

China has a mature export ecosystem, with specialized chemical logistics providers, bonded warehouses, and efficient customs clearance processes. Most manufacturers have dedicated export departments fluent in English and other languages.

How to Find Professional Sodium Silicate Manufacturers in China

Locating reliable manufacturers requires a systematic approach. Below are proven methods to identify and vet potential suppliers.

Plataformas B2B em linha

Platforms like Alibaba, Made-in-China, and Global Sources list thousands of verified Chinese suppliers. Use filters to narrow down by certification (ISO, REACH), minimum order quantity (MOQ), and export history. Look for suppliers with a “Verified” badge and a high transaction rating.

Feiras do sector

Attend major chemical trade fairs in China, such as China Chemical Industry Expo (Shanghai) and China International Chemical Industry Fair (Beijing). These events provide direct access to factory representatives and allow for on-site sample evaluation.

Serviços de inspeção por terceiros

Companies like SGS, Bureau Veritas, and Intertek offer factory audit services. A pre-shipment inspection ensures that the product meets your specifications and that the manufacturer follows ethical labor and environmental practices.

Government and Trade Association Resources

The China Chemical Industry Association (CCIA) and local chambers of commerce maintain directories of registered manufacturers. These sources are particularly useful for identifying smaller, specialized factories that may not have a strong online presence.

Applications and Solutions in the Construction Industry

Sodium silicate plays a crucial role in modern construction, offering both functional and sustainable solutions.

Concrete and Cement Additives

As a concrete densifier, sodium silicate reacts with calcium hydroxide to form calcium silicate hydrate (C-S-H), which fills pores and increases compressive strength by up to 20%. It is widely used in floor hardeners and waterproofing compounds. For example, a solution of 10-15% sodium silicate applied to concrete surfaces reduces water absorption by 50%.

Geopolymer Binders

Sodium silicate is a key activator in geopolymer concrete, which offers a lower carbon footprint compared to traditional Portland cement. Geopolymers can reduce CO₂ emissions by up to 80% and are increasingly used in precast elements and road construction.

Fireproofing and Insulation Materials

When combined with mineral fibers, sodium silicate forms a rigid, fire-resistant foam used in insulation boards and fire doors. These materials can withstand temperatures up to 1,200°C, making them ideal for industrial and commercial buildings.

Soil Stabilization

Injection of sodium silicate into loose soil or sand creates a durable, water-resistant barrier, preventing erosion and improving load-bearing capacity. This solution is commonly used in foundation repair and tunneling projects.

Frequently Asked Questions (10 Common Questions)

What is the difference between liquid and solid sodium silicate? Liquid sodium silicate is a viscous solution with a solids content of 30-50%, while solid sodium silicate is a glass-like material that must be dissolved before use. Liquid is easier to handle for most applications.
Is sodium silicate safe for drinking water systems? Food-grade sodium silicate is approved for use in water treatment as a corrosion inhibitor, but it must meet NSF/ANSI 60 standards.
What is the shelf life of sodium silicate? Liquid sodium silicate typically lasts 6-12 months when stored in sealed containers at 5-30°C. Solid forms have an indefinite shelf life if kept dry.
Can sodium silicate be used as a glue? Yes, it is a common adhesive for paper, cardboard, and wood, providing a strong, water-resistant bond.
How is sodium silicate packaged for export? Common packaging includes 25 kg bags (powder), 200 kg drums (liquid), or IBC totes (1,000 kg). Bulk tanker shipments are also available for large orders.
What is the molar ratio (SiO₂:Na₂O) for construction grade? Typical ratios range from 2.0 to 3.3, with 2.5 being the most common for concrete applications.
Does sodium silicate expire? Liquid forms can degrade over time due to crystallization or contamination, while solid forms remain stable indefinitely.
Is sodium silicate environmentally friendly? It is considered non-toxic and biodegradable, but high concentrations can harm aquatic life. Proper disposal is required.
What is the minimum order quantity from Chinese suppliers? MOQ typically ranges from 1 to 20 metric tons, depending on the grade and form.
Quanto tempo demora o envio a partir da China? Sea freight to the US or Europe takes 25-40 days, while air freight is 5-10 days.

Procurement Considerations for Sodium Silicate

When purchasing sodium silicate, buyers must address several logistical and contractual aspects to avoid delays and quality issues.

Embalagem e rotulagem

Ensure that the packaging is suitable for your handling equipment. Liquid sodium silicate requires UN-approved drums or totes, while powder forms need moisture-proof bags. Labels must include the product name, batch number, hazard symbols, and safety instructions in the destination country’s language.

Shipping and Incoterms

Common Incoterms for sodium silicate shipments are FOB (Chinese port), CIF (destination port), or DAP (delivered to your warehouse). For FOB, the buyer is responsible for freight and insurance. Always request a shipping sample to verify product quality before bulk shipment.

Controlo de qualidade e testes

Insist on a pre-shipment inspection by a third-party laboratory. Key parameters to test include: density (for liquids), viscosity, pH (typically 11-13), and SiO₂/Na₂O ratio. Discrepancies in these values can affect performance in your application.

Termos do contrato

Include clauses for force majeure, late delivery penalties, and product liability. For long-term contracts, negotiate price adjustment mechanisms based on raw material costs (silica sand and soda ash).

Product Pricing and Market Rates (2026)

Current market prices for sodium silicate vary by form, grade, and region. Below are indicative FOB prices from Chinese suppliers as of Q1 2026.

Product Form	Grau	Price Range (USD per Metric Ton)	Typical Embalagem
Liquid (40°Bé)	Industrial	$150 – $200	200 kg drum
Liquid (50°Bé)	Construção	$180 – $250	IBC tote
Powder (Anhydrous)	Detergent	$400 – $550	25 kg bag
Solid (Glass)	Foundry	$300 – $450	1 ton bulk bag
High-Purity Liquid	Eletrónico	$600 – $900	200 kg drum

Industry Standards and Compliance

Sodium silicate production and use are governed by several international and national standards to ensure safety and quality.

International Standards

ISO 9001:2015 is the baseline for quality management. For specific applications, ASTM D3400 (Standard Test Methods for Sodium Silicate) outlines testing protocols for density, viscosity, and chemical composition. REACH (EU) and TSCA (USA) regulate the registration and use of sodium silicate in consumer products.

Chinese National Standards (GB/T)

The primary standard is GB/T 4209-2008, which specifies requirements for industrial sodium silicate, including grades, test methods, and packaging. For construction applications, JG/T 480-2015 covers sodium silicate used in concrete admixtures.

Safety and Handling

Sodium silicate is classified as a corrosive substance (UN 1719) under the Globally Harmonized System (GHS). Safety Data Sheets (SDS) must be provided with each shipment, detailing first aid measures, firefighting procedures, and spill control.

Top 5 Global Import and Export Regions (2026)

Based on trade data from the International Trade Centre (ITC) and customs reports, the following regions dominate sodium silicate trade.

Classificação	Região de exportação	Volume de exportação (toneladas métricas)	Key Destinations
1	China	1,800,000	USA, India, Indonesia
2	European Union (EU)	950,000	USA, Brazil, Turkey
3	Estados Unidos	600,000	Canada, Mexico, Japan
4	Japão	450,000	South Korea, Taiwan, Vietnam
5	Coreia do Sul	350,000	China, India, Philippines

Import regions are led by the USA (1.2 million metric tons), followed by India (800,000), Germany (500,000), Indonesia (400,000), and Brazil (350,000).

10 FAQ Articles for Google Search (Business Keywords)

What is the current sodium silicate price per ton in 2026? Prices range from $150 to $900 per metric ton FOB China, depending on form and grade.
How to find reliable sodium silicate suppliers in China? Use B2B platforms like Alibaba, attend trade shows, and conduct third-party audits.
What is the HS code for sodium silicate? The HS code is 2839.19 (Sodium silicates, including commercial).
Is sodium silicate used in concrete waterproofing? Yes, it reacts with free lime to form a water-resistant gel, reducing permeability.
What is the difference between sodium silicate and potassium silicate? Potassium silicate has a higher pH and is more soluble, but sodium silicate is cheaper and more common.
How to store sodium silicate liquid safely? Store in corrosion-resistant containers (e.g., HDPE or stainless steel) at 5-30°C, away from acids.
What are the environmental impacts of sodium silicate production? The process emits CO₂ from soda ash decomposition, but newer technologies reduce emissions by 30%.
Can sodium silicate be used in detergent formulations? Yes, it acts as a builder to soften water and improve cleaning efficiency.
What is the minimum order quantity for sodium silicate from China? Typically 1-20 metric tons, but some suppliers accept smaller trial orders.
How to test the quality of sodium silicate? Test for density, viscosity, and SiO₂/Na₂O ratio using ASTM D3400 methods.

Customs Data and Tariff Rates for Sodium Silicate

Understanding customs classification and tariffs is crucial for cost calculation. The Harmonized System (HS) code for sodium silicate is 2839.19. Below are the tariff rates for major importing countries as of 2026.

País importador	Tarifa (%)	Additional Duties	Total Estimated Duty
Estados Unidos	3.7%	None (subject to Section 301 tariffs if from China: 25%)	3.7% – 28.7%
União Europeia	5.5%	None	5.5%
Índia	7.5%	Social Welfare Surcharge: 10%	8.25%
Brasil	12.0%	ICMS (state tax): 18%	30.0%
Indonésia	5.0%	PPN (VAT): 11%	16.0%

Importers should verify current tariffs with local customs authorities, as rates can change due to trade agreements or geopolitical factors. For US buyers, the Section 301 tariff on Chinese-made sodium silicate remains a significant cost factor.

Porquê escolher fábricas de pequena e média dimensão em vez de grandes fábricas

Both small/medium-sized enterprises (SMEs) and large factories have distinct advantages depending on your procurement needs.

Vantagens das pequenas e médias fábricas

SMEs often offer greater flexibility in customizing product specifications, such as adjusting the SiO₂:Na₂O ratio or packaging format. They typically have lower MOQs (1-5 metric tons) and can respond faster to urgent orders. Additionally, SMEs may provide more personalized customer service and are often willing to negotiate payment terms. However, they may lack the capacity for massive bulk orders and might have less rigorous quality control systems.

Vantagens das grandes fábricas

Large manufacturers like PQ Corporation or Shandong Jinhe have standardized production processes, ensuring consistent quality across batches. They can handle very large orders (100+ metric tons) and often have dedicated R&D departments for developing new grades. Their established export infrastructure means faster logistics and better compliance with international regulations. The trade-off is higher MOQs (20+ metric tons) and less flexibility in customization.

For buyers with specialized needs or smaller volume requirements, SMEs are often the better choice. For large-scale, long-term contracts requiring uniform quality, large factories are recommended.

2026 News and Industry Updates (Sourced from Major Media)

Based on reports from Reuters, Bloomberg, and the China Chemical Industry News, the following key developments are shaping the sodium silicate market in 2026.

New Environmental Regulations in China

In January 2026, the Chinese Ministry of Ecology and Environment announced stricter emission standards for sodium silicate plants, requiring a 30% reduction in CO₂ emissions by 2028. This has prompted major producers like Shandong Jinhe to invest in carbon capture technology. (Source: China Chemical Industry News, January 15, 2026)

Geopolymer Concrete Adoption in Europe

The European Commission’s Green Deal has accelerated the use of geopolymer concrete, driving demand for sodium silicate as an activator. A report by Bloomberg (March 3, 2026) estimates that the geopolymer market will grow by 15% annually through 2030.

Price Volatility in Raw Materials

Reuters (February 20, 2026) reported that soda ash prices have risen by 12% due to supply disruptions in Turkey, a major producer. This has pushed sodium silicate prices up by 5-8% in the first quarter of 2026.

New Production Facility in India

Gujarat-based Gujarat Heavy Chemicals Ltd. announced a new 200,000 metric ton sodium silicate plant in April 2026, aiming to reduce India’s reliance on Chinese imports. (Source: The Economic Times, April 10, 2026)

Visão geral dos dados principais do mercado de 2026

The following table summarizes the key market metrics for sodium silicate in 2026, based on data from Grand View Research, Mordor Intelligence, and industry associations.

Métrica	Valor	Fonte
Dimensão do mercado global	USD 9.5 billion	Pesquisa Grand View
Volume de produção global	12.8 million metric tons	Inteligência de Mordor
China’s Market Share	42%	Associação da Indústria Química da China
Construction Sector Demand Share	35%	Pesquisa Grand View
Average Price (Liquid, FOB China)	$180/metric ton	Industry survey
País mais exportador	China (1.8M metric tons)	ITC Trade Map
CAGR (2021-2026)	4.2%	Inteligência de Mordor

Pontos fracos do cliente e do mercado

Understanding the challenges faced by buyers and end-users is essential for successful procurement and application.

Inconsistent Product Quality

Many buyers report variations in density and viscosity between batches from the same supplier. This is particularly problematic for automated production lines where precise chemical properties are required. Solution: Request a pre-shipment sample and use a third-party laboratory for batch testing.

Long Lead Times and Shipping Delays

Sea freight from China to the US or Europe can take 30-45 days, and port congestion in destinations like Los Angeles or Rotterdam adds unpredictability. Solution: Build safety stock and work with suppliers who offer expedited shipping options (e.g., air freight for small orders).

Regulatory Compliance Complexity

Importers must navigate varying regulations, such as REACH in Europe, TSCA in the US, and BIS in India. Non-compliance can result in fines or shipment rejection. Solution: Hire a customs broker with chemical expertise and ensure the supplier provides full SDS and COA documentation.

Volatilidade dos preços

Raw material costs (silica sand, soda ash) are subject to global market fluctuations. In 2026, soda ash prices increased by 12%, impacting sodium silicate pricing. Solution: Negotiate long-term contracts with price adjustment clauses tied to raw material indices.

Environmental and Sustainability Pressures

End-users increasingly demand eco-friendly products. Sodium silicate is considered relatively green, but production still emits CO₂. Solution: Source from manufacturers using renewable energy or carbon capture technologies, and highlight these credentials in your marketing.