With more than 20 years of experience, SIWIN provides high-quality special silicone products to all customers worldwide, including OH Polymer CAS No.: 70131-67-8, MS Polymer CAS No. 216597-12-5, Deep Water Scavenger CAS No. 23432-65-7, etc.

ND(α)Type Silane

Silane Oligomer

Isocyanato Type Silane

Silane Cross-link Agent

Hot Product

Siwin now is the largest supplier of construction raw materials in north America, over 1500MT materials exported monthly.
OH polymer, silicone oils are Reach registered, also able to provide low D3-D10 version.

New Promotion

SILANE WATER SCAVENGER

SIWIN-AM121

SIWIN-AM121 is a UPDATED water scavenger designed for the production of moisture-curing construction adhesives and sealants, greatly improves the storage stability.

WATER REMOVER

SILANE TERMINATED POLYMER

SIWIN-M310

Dimethoxy(methyl)silylmethylcarbamate-

terminated polyether

FOR MS SEALANT

CROSS-LINK AGENT

SIWIN-VIPS

Vinyltriisopropenoxysilane can be used as cross linking agent with excellent performance, offers superior quality to the production of silicone rubber,

FOR SILICONE RUBBER

Industry Application

Siwin product portfolio are widely used in sealant, coating, plastic composite, cable, filler treatment, electronic industries.

Fiber Glass & Composite

Coating & Ink

Cable & Tube

Rubber & Plastic

Waterproof & Protection

Pigment & Filler

Textile & Dye

Sealant & Adhesive

We are a high-tech company focusing on the development, production and sales of silicone materials,

located in the beautiful historical city of Nanjing. Our strong R&D capabilities and rich application

experience enable us to provide customers with a full range of customized solutions.

Customization Will Better Meet Your Needs

1. Provide different sealant&adhesive customers the services of special organosilicone additives and their development and formulation design. For example, we have developed some special organosilicone additives for HB.FULLER, helping them improve their products’ performance while reducing costs .
2. In the coating industry, providing customers with a full range of organic silicon product designs, and continuously improve customer’s products’ performance.

Major Overseas Markets

We look forward to working closely with domestic and foreign customers to create a better future together.

News Center

22 April 2022

OH Polymer for Dental Impression

Newly customized high-performance raw materials for medical device and dental impression sectors, * OH Polymer (REACH) with content D4,D5,D6 below 0,1%，viscosity available @ 750Cp, 1.000Cp, 1500Cp, 20.000Cp, 50.000Cp, 80.000Cp, etc. *Vinly Resin with content D4,D5,D6 below 0,1%.

22 July 2021

Great business performance from our American company

Since the beginning of this year, Siwin American Company（ACSIC INGREDIENT） has achieved significant growth in its business scope and volume

06 July 2021

New develoepd MS polymer-Siwn-M310

Siwin R&D center in Hubei province has successfully developed a new product - silane modified polyether resin(Siwin-M310) which is blocked by alpha isocyanato silane, which can be a replacement of Wacker's STP-E10.