Feb 27, 2026
Rigid polyurethane (PUR) and polyisocyanurate (PIR) foam boards/panels are widely used in energy-saving construction and industrial insulation fields, including:

Building insulation( wall insulation, roof insulation, floor insulation and residential energy-saving projects);Cold chain & cold storage(cold storage warehouses, logistics centers, refrigerated trucks, household appliances,and low-temperature storage facilities);Industrial insulation(petrochemical pipelines, storage tanks, thermal equipment, and high-temperature industrial facilities);Sandwich panels(continuous production wall panels, roof panels, and structural insulation panels) due to their excellent thermal insulation, compressive strength, dimensional stability, and fire resistance. 

Key Factors for Selecting Silicone Surfactants for  Board/Panel Applications
1.Match the Blowing Agent System
Different blowing agents require surfactants with specific emulsifying and stabilizing properties:
Cyclopentane systems: Choose surfactants with strong emulsification, good compatibility, and balanced foam stabilization to avoid phase separation, coarse cells, and poor surface quality.
Water-blown systems: Select high-stability, anti-shrinkage, fine-cell surfactants to reduce collapse, cracking, and deformation caused by high reactivity and heat release.
HFO eco-friendly blowing agents: Use low-conductivity, low-permeability, high-compatibility surfactants designed for modern green foaming systems to improve insulation and stability.

2.Adapt to Polyol Formulation
Polyether polyol systems: General-purpose surfactants focused on good flowability and fine cell structure.
High-functionality & sucrose polyether systems: Surfactants with strong emulsifying power and wide compatibility to prevent separation.
Polyester polyol systems: Select hydrolysis-resistant, balanced-stability surfactants for better core structure and surface finish.
High-flame retardant formulations: Use highly stable, interference-resistant surfactants to maintain foaming stability despite flame retardants’ disruptive effects.

3. Match Production Line Speed & Technology
High-speed continuous lines: Surfactants with fast nucleation, good flow, and fast skin formation to ensure full mold filling and uniform density.
Low-speed or discontinuous lines: Moderately higher stabilization to improve closed-cell content and dimensional stability.
Thick boards & high-density boards: Prioritize anti-shrinkage, high cell-wall strength to reduce warping and deformation.

Selecting the right silicone surfactant/stablizer for board/panel production requires matching the blowing agent first, then polyol and flame retardant systems, followed by production speed, and finally balancing flowability and stabilization.  Lab testing and pilot trials are necessary to optimize dosage and ensure stable, high-quality PU foam board production.

 
For samples, pricing or technical inquiries, please contact our team or visit our website.

 

 

Topwin is one of the leading professional manufacturers and solution providers with more than 20 years of experience, and has domestic top-level engineers in the silicone surfactant industry. Specializing in research and development, production, sales, and marketing of silicone-based special functional performance materials, Topwin also serves as a professional provider of technical services. Now our products are widely used in Polyurethane Foam, Corp Protection, Coatings and InksLeather & Textile, Silicone Release Coating for Paper and Film, Personal Care,  and others.