Question

What are the main industries and processes where Polyether L-63 is used?

Answer

2026-05-27 官方文档聚醚L-63

Polyether L-63 is widely used in the five core areas of the polyurethane industry, including flexible foam, self-skinning foam, semi-rigid foam, microcellular elastomers, and adhesives/coatings, with its core process being cold-cure molded foam.

Detailed Description

Polyether L-63 (CAS: 9003-11-6) is a nonionic polyether polyol, belonging to the poloxamer class of surfactants. It appears as a colorless to slightly yellow transparent viscous liquid. With excellent emulsifying, wetting, dispersing, and leveling properties, as well as good resistance to acids, alkalis, and hard water, this product plays a key role in the polyurethane industry.

In terms of processes, the most core application of Polyether L-63 is the cold-cure molded foam process, used for producing high-resilience flexible foam. This process does not require high-temperature post-curing, saving energy and being efficient, resulting in foam products with uniform cell structure and excellent resilience. Additionally, it is an important polyol component in self-skinning foam and microcellular elastomers, giving products an integrated structure with a dense skin and soft core.

Overview of Five Application Areas

Application Area	Typical Process	Representative Products
Polyurethane High-Resilience Flexible Foam	Cold-Cure Molded Foam	Automotive seats, furniture cushioning
Self-Skinning Foam	Integrated Molding	Automotive steering wheels, armrests, headrests, interior parts
Semi-Rigid Foam	Molded Foam	Automotive dashboards, door panel filling, energy-absorbing bumper blocks
Microcellular Elastomers	Pouring/Molding	Shoe soles, insoles, shock-absorbing pads, seals
Polyurethane Adhesives and Coatings	Two-Component Reaction Curing	Automotive coatings, building sealing, industrial bonding

Application Recommendations

High-resilience foam formulation: As the main polyol component, it is recommended to be used with an appropriate isocyanate, produced via cold-cure molding process, which can significantly improve the elastic recovery rate and durability of the product.
Self-skinning system: Utilizing its foam stability and wide processing window characteristics, it achieves an integrated effect of dense skin and soft core, enhancing touch feel and abrasion resistance.
Adhesive/coating system: As a polyol component in two-component systems, it can improve adhesion, flexibility, and chemical resistance, suitable for automotive and construction fields.

Core Performance Advantages

Performance Indicator	Parameter
Product Type	Nonionic Polyether Polyol (Poloxamer)
HLB Value Characteristic	Possesses both hydrophilic and lipophilic properties, excellent emulsifying and dispersing performance
Acid/Alkali/Hard Water Tolerance	Good
Flash Point	>200°C (Non-flammable liquid)
Acute Oral Toxicity LD50	>5000 mg/kg (Practically non-toxic)
Biodegradability	Readily biodegradable (OECD 301F, degradation rate >60% ThOD)

Data source: Product database and safety data sheet of Haian Guoli Chemical Co., Ltd.

Back to FAQ