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The Evolution of Polyurethane Rigid Foam Blowing Agents: Spotlight on Fourth-Generation Innovations
Polyurethane (PU) rigid foam has become a cornerstone of modern insulation, widely used in construction, refrigeration, and industrial applications due to its exceptional thermal performance and structural versatility. Central to its manufacturing process is the blowing agent, a substance respons...Read more -
The price of MDI in Southeast Asia has risen,amidst changes in the international market
Wanhua announced that from February 28, 2025, the price of PMDI in Southeast Asia will increase by $100 per ton, following a $200 increase in January. This indicates Wanhua’s confidence in the growing demand for polyurethane in this region, especially in Vietnam, Thailand, and Indonesia. So...Read more -
WELCOME TO PU TECH EXPO IN THAILAND
rom 12-14 Mar we have the pleasure of attending PU Tech Expo in Bangkok, Thailan 2025. As one of silicone surfactant suppliers, we’re incredibly proud of our role in these dynamic events. The exhibitions offered us the opportunity to catch up on the latest industry trend...Read more -
Exhibition in March
The doors are open and March is a busy month in the New Year. We will be attending the following three shows： ● China International Agrochemical & Crop Protection Exhibition (CAC), ● PU Tech Expo (Bangkok, Thailand), Booth No.: T9 ● Polyurethanex 2025 (Russia) We will learn about industr...Read more -
Small to see the big—Silicone release agent
When you buy a new cup from the supermarket with a label paper, you will find that you want to tear off the label paper perfectly is a little difficult, and applying silicone release agent can effectively solve this problem – it does not affect the adhesion of the label, but also allows it ...Read more -
How to select Silicone surfactant for PU foam?
When selecting a silicone surfactant for polyurethane (PU) foam, you can consider the following factors: Silicone content Surfactants with higher silicone content have lower surface tension, which can increase the number of air bubbles in the foam. This can result in a smaller bubble size in t...Read more -
Spray polyurethane foam insulation parameters
What is spray polyurethane rigid foam? Today thermal insulation is the biggest factor for the energy saving. At this point, rigid polyurethane foam which has closed cell structure is the material having the lowest heat transfer coefficient (0.018-0.022 W/mK) in the world. This type of polyurethan...Read more -
Welcome customers to communicate
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New Arrival
Silicone releasing coating for double-sided coated paper Siemtcoat SF 501 is a solvent-free silicone release agent, suitable for double-sided coated paper and has stable release force. Test in high temperature and high humidity: No silicone rub-off after double-sides l...Read more -
Semi-year Review meeting
In mid-July, Hangzhou TopWin carried out the review work in an orderly manner according to the group's instructions. In the first half of the year, facing the severe market situation at home and abroad, the company combined market demand, deeply analyzed industry trends,...Read more -
Exhibition Invitation Letter
Dear Sir or Madam, TopWin Technology hereby sincerely invite you to visit our booth at Shanghai World Expo Exhibition & Convention Center in Shanghai, from July 17-19, 2024. In this exhibition, we will show silicone surfactant for various applications. We are lookin...Read more -
EXHIBITION INVITATION LETTER
Dear Sir or Madam, TOP WIN hereby sincerely invite you to visit our booth at Pavilions 1&5, Expocentre Fairgrounds, Moscow, Russia from March 26 to 28, 2024. In this exhibition, we will show the world the high-end applications of Silicone Surfactant, which can appli...Read more
