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Hangzhou Top Win Technology Development Co., Ltd.

Topwin is established by Wynca Group together with several specialty silicone companies for the purpose of integrating the complete silicone industry chain and marketing into the end-product fields. The company's competitive advantage is rooted in its founders, who possess extensive expertise in both the upstream and downstream sectors of the supply chain.

 

Specializing in the research and development, production, sales and marketing of silicone-based special functional performance materials, Topwin also serves as a professional provider of technical services. Our products are mainly used in Release Coating for Paper & Film, Coatings and Inks, Leather and Textile, Crop Protection, Polyurethane Foam, Personal Care and others.

 

Topwin
Topwin is one of the leading & professional manufacturer specialized in producing all kinds of SILICONE BASED new materials.
Wynca Group
Topwin is a member of Wynca,
Wynca is one of the top 500 chemical enterprise in China and the top 20 agrochemical sales enterprise in the world.
Technical Service
A R&D team with more than 20 years'
experience, have domestic top-level engineers in silicone surfactant industry.
Customer service
Have perfect innovation system, provide stable quality with competitive price and excellent service.

Industry News

19 2025-06
Exploring the Innovation Path of Silicone Oil Market Application Hangzhou Topwin Technology: Exploring the Innovation Path of Silicone Oil Market Application
19 2025-06
【Invitation Letter】-Shanghai International Tape & Film Expo 2025 Welcome to visit Topwin at the Shanghai International Tape & Film Expo 2025. Exhibition Dates: June 17th to 19th , 2025 Exhibition Venue: Shanghai National Exhibition and Convention Center Booth Number: 6.1 T22
13 2025-06
Possible causes and solutions for craters caused by slip agents The cratering and shagreen (orange peel) defects in the coating when using a silicone-based emulsion/ Slip agent could be related to several factors
12 2025-06
Viscosity-Line Speed Relationship in Silicone Release Coating Applications The viscosity of silicone release coating significantly affects the coating machine's line speed, a relationship widely recognized and emphasized in actual production processes. Specifically, the viscosity of silicone release coating is closely related to the coating machine's line speed, primarily reflected in the following aspects:
29 2025-05
Classification and Selection Guide for Release Films Release films (also known as peeling films or release liners) are functional films coated with a special release agent to form a low-surface-energy layer. This layer effectively isolates adhesive materials (e.g., adhesives, resins) to prevent sticking during processing, transportation, or storage, while ensuring easy peeling in subsequent operations.
29 2025-05
Applications and Precautions of Silicone Release Coatings on Glassine Paper Silicone release coatings are widely used on glassine paper, primarily as backing paper for products such as self-adhesive labels, adhesive tapes, and medical patches. Their primary function is to provide controlled release forces, ensuring seamless peeling of adhesive materials without residue.
29 2025-05
Application of Silicone Release Coating in Baking Paper Application of Silicone Release Coating in Baking Paper: Synergistic Advancements in Technology and Food Safety
08 2025-05
【Invitation Letter】Welcome to visit Topwin at Labelexpo Southeast Asia 2025 Welcome to visit Topwin at Labelexpo Southeast Asia 2025 Exhibition Dates: May 08th to 10th , 2025 Exhibition Venue: BITEC, 88 Bangna-Trad Road (Km.1), Bang Na, Bangkok 10260, Thailand Booth Number: H11
28 2025-04
Global Polyurethane Supply and Demand Market In 2024, the global MDI capacity was 10.99 million tons per year. From 2020 - 2024, the compound annual growth rate (CAGR) of global MDI capacity was 5.3%. It is expected that by 2029, the global MDI capacity will reach 12.5 million tons per year, and from 2025 - 2029, the CAGR of global MDI capacity will be 3.1%.
16 2025-06
Welcome to visit Topwin at Shanghai International Tape & Film Expo 2025