What RUISIL does

RUISIL, the international brand of Hangzhou Ruijiang Chemical Co. Ltd, is a China-based specialty chemicals manufacturer focused on the research, development, and production of new silicone materials and downstream silicone formulations. Founded in 1999 and headquartered in Hangzhou with manufacturing operations at Plant Sican (Jiande City) and Plant Zemei (Yichang), the company supplies a broad portfolio spanning silane and siloxane intermediates, silicone oils, silicone emulsions, water repellents, release agents, polyurethane surfactants, beauty and personal-care silicones, sealants, agricultural spray adjuvants, anticorrosive and waterproof coatings, textile softeners, defoamers, silicone masterbatches, and hair dye intermediates marketed under the Ruicolor sub-brand. The technology base centers on proprietary emulsion, alkoxysilane, and polysilazane chemistry, with patented catalyst-free water-repellent formulations and specialty SKUs such as methoxy-terminated silicone fluids and amino/epoxy silane oligomers serving higher-specification end uses including photovoltaic sealants and potting compounds.

The company's go-to-market is B2B and quote-based: customers submit inquiries or sample requests through the website, with localized sales and technical support delivered from wholly-owned offices in Fort Lee (USA), São Paulo (Brazil), and Mexico City, supplemented by participation in flagship coatings industry events including CHINACOAT and the European Coatings Show. End markets served include construction, agriculture, cosmetics and personal care, polyurethane foam manufacturing, coatings and paints, textiles, plastics, and electronics/solar, with no named anchor customers or disclosed revenue concentration. RUISIL is a wholly-owned subsidiary of Ruijiang Group (founded 1999, 500+ employees, 30+ technical R&D staff, 90%+ of workforce holding above-Bachelor degrees), alongside sister entities Hangzhou Ruijiang Performance Material Science Co. Ltd, Hangzhou Ruijiang Industry Co. Ltd, and Zhengjiang Chun-An Foreign Trade Co. Ltd. The company is privately held with no disclosed institutional funding, no public listing, and no quantified revenue figures in the input data.

Name

RUISIL

Legal name

Hangzhou Ruijiang Chemical Co. Ltd

Website

https://ruisilicone.com

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

251–500 employees

Short description

RUISIL (Hangzhou Ruijiang Chemical Co. Ltd) is a China-based specialty chemicals manufacturer founded in 1999 that develops and sells silicone materials, emulsions, water repellents, sealants, surfactants, and related intermediates to industrial customers in construction, agriculture, cosmetics, polyurethane, textiles, and solar applications worldwide.

Ownership category

akta.pro rank

Product category

Specialty Silicone Chemicals

NAICS

Chemical Manufacturing (325), Surface Active Agent Manufacturing (325613), Paint and Coating Manufacturing (325510), Other Chemical Product and Preparation Manufacturing (3259)

SIC

Chemicals & Allied Products (2800), Miscellaneous Chemical Products (2890), Adhesives & Sealants (2891)

akta.pro primary industry

Specialty Surfactants & Performance Additives (IMAEABAL)

akta.pro secondary industry

Surfactants & Detergent Intermediates (LAB/LAS, Ethoxylates, Sulfonates) (IMAEADAL)

Keywords

• Silicone intermediates
• Polyurethane surfactants
• Agricultural silicone adjuvants
• Silicone water repellents
• Specialty silicone chemicals

Headquarters

HQ city

Hangzhou

HQ country

China

HQ region

Asia

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Supply Chain, Infrastructure, Marketing or Sales

Revenue model

1. Silicone Chemical Products: B2B chemical company selling silicone-based products including silicone oil, silicone emulsions, water repellents, sealants, surfactants, and specialty silicone materials to industrial customers in construction, agriculture, cosmetics, polyurethane, and other sectors.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels2 records

Core offering

RUISIL develops, manufactures, and sells specialty silicone materials — including silanes and siloxanes, silicone oils and emulsions, polyurethane surfactants, silicone water repellents, sealants, release agents, agricultural silicone surfactants, personal care silicones, textile softeners, and antifoams/defoamers — for industrial B2B customers serving construction, coatings, agriculture, cosmetics, polyurethane foam, and textile applications. The company combines a 30+ person R&D team with overseas branch offices in the USA, Brazil, and Mexico to deliver customized silicone chemistry solutions globally.

Product overview

RUISIL (Hangzhou Ruijiang Chemical Co. Ltd) is a technology-based chemical company specializing in silicone materials and technology. The product portfolio includes multiple interconnected product lines: Silane & Siloxane intermediates and Silicone Oil form the foundational raw materials; Silicone Water Repellent, Silicone Emulsion, and Release Agents serve industrial processing applications; Polyurethane Surfactant & Additives address foam manufacturing; Silicone For Beauty & Personal Care provides ingredients for cosmetics; Silicone Sealant and Anticorrosive/Waterproof Coatings serve construction applications; Agricultural Silicone Surfactants target agrochemical enhancement; and Textile Silicone Softeners serve fabric finishing. The company also offers Hair Dye Intermediates (Ruicolor brand), Silicone Masterbatches for plastics, and comprehensive Antifoam/Defoamer solutions. Products are primarily B2B industrial ingredients sold to manufacturers rather than end consumers.

Differentiator

Problem solved

Functional benefit

Brands

• Ruicolor: Hair dye product line including HC Blue 16 and various intermediate compounds for permanent hair dyes

Products and services

• Silane & Siloxane Silane and siloxane intermediates for industrial formulation and downstream silicone synthesis, supplied to manufacturers in construction, coatings, and chemical processing.
• Silicone Oil Dimethyl and functional silicone oils for use as processing aids, lubricants, and base fluids across industrial applications including polyurethane foam and personal care.
• Silicone Emulsion Water-based silicone emulsions for industrial finishing and textile applications, designed for stable incorporation into aqueous formulations.
• Silicone Intermediate Reactive silicone intermediates for downstream synthesis of sealants, release agents, and modified silicones used in industrial chemistry.
• Polyurethane Surfactant (RJ-AC010, RJS-9040) Hydroxy silicone oil (RJ-AC010) and demolding agent (RJS-9040) for polyurethane foam manufacturing, supplied to PU foam producers as cell-stabilizing and release agents.
• Silicone Water Repellent (RJ-WP11E) Emulsion-type silicone water repellent for construction substrates, providing hydrophobic protection in concrete, masonry, and facade applications.
• Silicone Sealant Silicone-based sealants for construction and industrial sealing applications requiring weather and UV resistance.
• Silicone Release Agent Silicone release agents for industrial molding and polyurethane foam demolding operations.
• Anticorrosive Coating Silicone-based anticorrosive coatings for protection of metal and infrastructure surfaces in industrial and construction environments.
• Waterproof Coating Silicone waterproof coatings for construction surfaces, formulated to provide durable moisture barrier performance.
• Agricultural Silicone Surfactant (AGRI-7005, AGRI-9002, RJ-AGRI6008, RJ-AGRI900 series) Polyether-modified silicone spray adjuvants for agricultural pesticide applications, designed with super-spreading properties that can reduce spray volume by up to 70% while improving pesticide uptake on plant surfaces.
• Personal Care Silicone (RJS-3560, RJS-3590, RJS-3600) Silicone ingredients for personal care formulations such as hair care and skin care products, supplied to cosmetics manufacturers.
• Textile Silicone Softener (GOTA-S24, GOTA-S236) Silicone-based textile softeners for finishing of fabrics, providing hand-feel and softness characteristics for textile manufacturers.
• Antifoam/Defoamer (ANTI-FOR-110, ANTI-FOR-130) Silicone-based antifoam and defoamer agents for industrial processes requiring foam control in aqueous and non-aqueous systems.

Quantifiable outcome

• Agricultural adjuvants can reduce spray volume by up to 70%
• +2 more outcomes

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators7 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Avantor: Global specialty chemicals and ingredients supplier with overlapping silicone and additive offerings for biopharma, personal care, and industrial applications — comparable distribution scale and end-market breadth.
• Wacker Chemie: One of the world's largest integrated silicone and specialty chemical manufacturers, headquartered in Germany. Directly comparable as a global supplier of silicones (oils, emulsions, sealants, water repellents) to construction, automotive, electronics, cosmetics, and coatings customers.
• Elkem Silicones: Fully integrated silicone manufacturer (formerly Bluestar Silicones) supplying specialty fluids, emulsions, resins, and sealants to construction, automotive, personal care, and PV customers — direct overlap with RUISIL's downstream applications.
• Shin-Etsu Chemical: Japanese global leader in silicones alongside semiconductor materials and PVC. Operates the full monomer-to-finished-silicone value chain and is a benchmark direct competitor to RUISIL across silicone fluids, emulsions, sealants, and specialty grades.
• Dow (DOWSIL silicones): Dow's DOWSIL portfolio covers silicone oils, emulsions, sealants, water repellents, and PU additives — overlapping almost entirely with RUISIL's product set across construction, personal care, agriculture, and electronics.
• Momentive Performance Materials: Specialty silicones and additives producer serving personal care, agriculture, PU foam, coatings, and electronics — a strong one-to-one analog across RUISIL's full silicone product family.

Regional players

• KCC Corporation: Korean specialty chemicals and silicone producer with comparable product breadth in coatings resins, sealants, and PU additives, primarily serving Asia — a relevant regional analog to RUISIL's Asia-centric operations.

Direct peers

• BRB International: Dutch specialty silicones and additives producer serving personal care, PU, lubricants, and industrial release agents — directly comparable to RUISIL's smaller-volume, application-specific silicone offering.
• Reaxis Inc. US-based specialty chemical manufacturer of silicone and metal-based catalysts and additives for PU, coatings, sealants, and personal care — a comparable mid-size specialty silicone/additive supplier.
• Siltech Corporation: Canadian specialty silicone manufacturer focused on silicone surfactants, emulsions, and performance additives for personal care, PU, coatings, and agriculture — closely aligned with RUISIL's specialty-surfactant and additive portfolio.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/ruisilicone
• Xx.com/RUISILICONE
• Facebookfacebook.com/Hangzhou-Ruijiang-Performance-Material-Science-Co-Ltd-141373436222096

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RUISIL