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NXF-400 Polyester Polyol for Spray Foam with 400±20 Hydroxyl Value

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SKU: 7295803335
Model: XF-235; NXF-400;

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Product Details

NXF-400 Polyester Polyol for Spray Foam

NXF-400 is a high-reactivity polyester polyol engineered for spray foam insulation systems. With a hydroxyl value of 400±20 mgKOH/g and low viscosity of 3000±1000 CPS at 25°C, it offers excellent flow and wetting characteristics, making it ideal for field-applied insulation in cold storage and construction projects.

Polyester polyol NXF-400 product drum

Key Selling Points

  • High hydroxyl value 400±20 mgKOH/g: Provides rapid curing and high cross-link density, essential for robust spray foam structures.
  • Viscosity 3000±1000 CPS: Excellent pumpability and atomization for spray equipment, reducing application complexity.
  • Low acid value ≤2.0 mgKOH/g: Ensures good compatibility with isocyanates and stable reaction kinetics.
  • Moisture ≤0.15%: Prevents CO₂ generation and preserves foam integrity.
  • Proven in spray foam applications: Works well with spraying coating machines for cold storage insulation, ensuring low thermal conductivity.

Technical Specifications

Hydroxyl value (mgKOH/g)400±20
Acid value (mgKOH/g)≤2.0
Moisture (%)≤0.15
Viscosity (CPS, 25°C)3000±1000

Models and Options

NXF-400 is available alongside XF-235. For spray foam applications, NXF-400 is recommended due to its higher reactivity and lower viscosity.

Materials and Structure

Manufactured from PA, PTA, AA, DEG, GL and related raw materials, providing a branched oligomeric structure that enhances foam rigidity.

Applications

Designed for sprayed polyurethane foam in cold storage facilities, construction insulation, and pipeline insulation. Suitable for systems requiring high flame retardance and low thermal conductivity under normal temperature conditions.

Customization

Tailored reactivity and viscosity adjustments can be provided to meet specific spraying equipment and end-use requirements.

Case Study

In a cold storage project, NXF-400 was used with a spraying coating machine, achieving excellent insulation efficiency and low thermal conductivity, meeting the project's low-temperature foaming stability requirements.

FAQ

Can NXF-400 be used in continuous panel production?It is optimized for spray foam; for continuous panels, XF-235 may be more suitable.
What is the recommended storage temperature?Store between 15-30°C, away from moisture and direct sunlight.
What packaging is available?IBC drums (1000-1200 kg) and galvanized iron drums (170-225 kg) are offered.
Is pre-shipment testing available?Yes, pre-shipment testing is part of our quality assurance process.
What certifications cover production?ISO 9001, ISO 14001, and ISO 45001 certified facility.

Inquiry Information

For pricing and technical support, contact Jessica at admin@xinfapu.com or Tel: +86 156-3365-7995.

Image Filename and Alt Suggestions

Main image: polyester-polyol-nxf-400-drum.png - Alt: NXF-400 polyester polyol in 200L drum

Detail image: polyester-polyol-nxf-400-spray-application.png - Alt: Application of NXF-400 spray foam on surface