High-Density Rigid Polyurethane Insulation Blocks | Load-Bearing & Thermal Break Solutions

Expert Insights from Ruibin, Lead Technical Consultant at Hebei Woqin

"The biggest challenge in modern steel construction isn't the heat loss through the walls, but the 'thermal bridge' at the column base. Standard insulation crushes under pressure; that’s why we developed the High-Density Rigid PU Block," says Ruibin. "Our blocks aren't just insulation—they are structural components. With compressive strengths reaching 14.5 MPa, we provide the stability of wood with the thermal efficiency of high-end foam, ensuring your building remains energy-efficient from the foundation up."

I. Lab-Certified Technical Specifications (Tested to GB/Standards)

Our polyurethane blocks undergo rigorous testing to ensure they meet the mechanical demands of heavy industry.

Thermal Conductivity (25°C): 0.08 W/(m·K) (Requirement: ≤0.08).

Compressive Strength: 8.115 MPa (Standard requirement: ≥8 MPa). We offer custom grades up to 14.5 MPa (2100 psi).

Density: 602 kg/m³ (Precision-engineered high-density type).

Flexural Strength: 8.17 MPa, ensuring durability under bending stress.

Water Absorption (24h Immersion): 2.1% (Excellent moisture barrier).

Fire Performance (Class B1): Flame tip height ≤150mm with no burning drips generated.

Operational Temperature Range: Stable from -196°C to +120°C.

II. Strategic Application Scenarios

Steel Structure Column Bases: Acts as a high-strength thermal break pad to prevent energy loss and condensation at the foundation.

Cold Storage Flooring: Heavy-duty antifreeze insulation layer capable of supporting forklift traffic and heavy racking (Compressive strength ≥1000 psi).

Passive House Construction: Precision-cut insulation pads for window sills, door frames, and roof-to-wall junctions.

Curtain Wall Support: Load-bearing blocks for stone and glass facades that require both structural integrity and thermal isolation.

III. Commercial Options & Precision Service

Custom Dimensions: Available from 100mm x 100mm x 50mm up to 600mm x 600mm x 300mm.

Precision Machining: Dimensional tolerance maintained at ±1mm for perfect fit on-site.

Pre-Processing: We support pre-embedded anchor bolt hole processing based on your CAD drawings.

Environmental Compliance: RoHS compliant, green production process, and 100% free of Freon/CFCs.

IV. Ordering & Support

Factory Direct Pricing: Competitive bulk rates for 2026 industrial projects.

Consultation Service: Not sure which density you need for your load-bearing requirements? Provide your PSI specs, and Ruibin's team will provide a calculation report within 10 minutes.