Mofan Polyurethanes Co., Ltd., a leading innovator in advanced polyurethane chemistry, has officially announced the mass production of its next-generation Novolac Polyols. Designed with precision engineering and a deep understanding of industrial application needs, these advanced polyols are set to redefine the performance standards for rigid polyurethane foams across multiple industries.

Rigid polyurethane foams are essential materials in insulation, construction, refrigeration, transportation, and specialized manufacturing. They are valued for their exceptional thermal insulation, mechanical strength, and durability. However, as market demands evolve—driven by stricter energy efficiency regulations, higher safety standards, and the need for environmentally friendly solutions—manufacturers are seeking raw materials that not only meet but exceed these requirements.

Mofan’s Novolac Polyols represent a leap forward in polyurethane technology. With low viscosity, optimized hydroxyl (OH) value, ultrafine cell structure, and inherent flame retardancy, these polyols enable foam producers to achieve superior product performance while optimizing processing efficiency and energy consumption.

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1. Low Viscosity and Optimized OH Value: Processing Efficiency Meets Design Flexibility

One of the standout advantages of Mofan’s Novolac Polyols is their remarkably low viscosity, ranging from 8,000–15,000 mPa·s at 25°C. This reduced viscosity significantly improves handling during formulation and production, allowing for smoother mixing, faster processing, and lower mechanical stress on production equipment. It also contributes to reduced energy consumption, as less heat and agitation are required to achieve a uniform blend.

In addition, the hydroxyl value (OHV) of Mofan’s Novolac Polyols can be custom-tailored between 150–250 mg KOH/g. This tunable parameter offers foam manufacturers greater formulation freedom, especially for high-water-load designs, which are crucial for certain insulation and structural foam applications. By controlling the OH value, formulators can precisely adjust foam hardness, density, and crosslink density, ensuring optimal performance for targeted end uses.

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2. Ultrafine Cell Structure: Superior Thermal and Mechanical Properties

Foam performance is heavily influenced by its internal cell structure. Mofan’s Novolac Polyols deliver an average cell size of only 150–200 μm, which is significantly finer compared to the 300–500 μm typically found in standard rigid polyurethane foams.

This ultrafine structure provides multiple benefits:

Enhanced Thermal Insulation – Smaller, more uniform cells reduce thermal bridging, thereby improving the foam’s overall insulation performance.

Improved Dimensional Stability – A fine and consistent cell structure minimizes shrinkage or expansion over time, ensuring long-term reliability.

Superior Mechanical Strength – Finer cells contribute to higher compressive strength, an important factor in load-bearing insulation panels and structural foam applications.

Furthermore, Mofan’s Novolac Polyols produce foams with a closed-cell ratio exceeding 95%. This high closed-cell content minimizes the ingress of moisture or air, which is critical for maintaining low thermal conductivity over the product’s lifespan.

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3. Inherent Flame Retardancy: Built-In Safety Without Compromising Performance

Fire safety is an ever-present concern in insulation and construction materials, especially as global building codes and safety regulations become more stringent. Mofan’s Novolac Polyols feature inherent flame retardancy—meaning the flame resistance is a fundamental property of the material’s chemical structure, not merely the result of additives.

Independent cone calorimeter tests demonstrate that rigid polyurethane foams produced with Mofan’s Novolac Polyols achieve a 35% reduction in peak heat release rate (pHRR) compared to conventional rigid foams. This lower pHRR translates into slower flame spread, reduced smoke generation, and improved fire safety, making the material highly suitable for applications in residential, commercial, and industrial environments.

The inherent flame resistance also offers processing benefits: manufacturers can reduce or eliminate the need for external flame-retardant additives, simplifying formulations and potentially lowering production costs.

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Driving Innovation Across Industries

The introduction of Mofan’s Novolac Polyols opens new opportunities for multiple sectors:

Building and Construction – Enhanced insulation performance and fire resistance meet the demands of modern green building standards.

Cold Chain and Refrigeration – Superior closed-cell structure ensures consistent insulation in refrigeration units, cold storage facilities, and transportation.

Automotive and Transportation – Lightweight yet strong rigid foams help improve fuel efficiency while meeting safety requirements.

Industrial Equipment – Durable, thermally efficient foams extend the lifespan of equipment operating in challenging environments.

With its combination of performance advantages, Mofan’s Novolac Polyols enable manufacturers to meet today’s rigorous performance benchmarks while preparing for future industry regulations.

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A Commitment to Sustainable Excellence

Beyond technical performance, Mofan Polyurethanes is committed to sustainability and environmental responsibility. The lower viscosity and tailored OH values help reduce energy consumption during processing, while the enhanced insulation efficiency of the resulting foams contributes to reduced energy usage over the product’s lifetime. Additionally, by embedding flame-retardant properties at the molecular level, Mofan helps minimize the use of halogenated additives, aligning with global trends toward safer, eco-friendlier chemical formulations.

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About Mofan Polyurethanes Co., Ltd.
Mofan Polyurethanes is a pioneer in the development and production of advanced polyurethane materials, serving industries worldwide with innovative solutions for insulation, construction, automotive, and industrial applications. Leveraging deep expertise in polymer chemistry, Mofan combines scientific precision with practical application knowledge to deliver materials that meet the highest standards of performance, safety, and sustainability.

With the launch of its Novolac Polyols, Mofan once again demonstrates its leadership in advancing polyurethane technology, providing manufacturers with the tools they need to produce stronger, safer, and more efficient rigid foams.