Rigid Polyurethane Foam Material Manufacturer
In short: we manufacture fully formulated rigid polyurethane foam systems (blended polyol + matching MDI) for insulated sandwich panels, refrigerators and freezers, automotive parts and protective packaging — reaching λ ≤21 mW/(m·K) and ≥92% closed cells, blown with cyclopentane, water or HCFC-141b. Blended in our own plant in China since 2010.
- λ ≤21 mW/(m·K)
- ≥92% closed cell
- MOQ from 10 kg
- Batch CoA
- Manufacturer since 2010
What Is Rigid Polyurethane Foam?
Rigid polyurethane foam is a closed-cell thermoset made by reacting a blended polyol (polyol, catalyst, silicone surfactant, blowing agent and flame retardant) with an isocyanate, normally MDI. On our drums and data sheets the polyol side is component A and the isocyanate side is component B. The gas trapped in the closed cells — not the plastic itself — is what insulates, which is why closed-cell content and cell size drive the thermal conductivity.
Because the two components react in place, the foam expands to fill the cavity and bonds to the facer, giving an insulating core and structural stiffness in one step. That combination is why it dominates cold chain, appliance and building-envelope insulation.
Rigid Polyurethane Foam Grades & Technical Specifications
Select by blowing agent and target lambda. Cyclopentane and water-blown grades are the compliant route for regulated markets.
| Grade | Typical use | Blowing agent | Moulding / core density | Thermal conductivity λ | Compressive strength | Closed-cell content | Reactivity |
|---|---|---|---|---|---|---|---|
| SPC-10081 | Refrigerators & freezers | Cyclopentane (CP or CP/IP) | ≥35 kg/m³ | ≤21 mW/(m·K) @15°C | ≥150 kPa | ≥92% | Cream 8–16 s · Gel 45–90 s |
| SPC-10062-CP | Sandwich panels — best thermal performance | Cyclopentane | 30–43 kg/m³ | ≤20–27 mW/(m·K) | ≥150–220 kPa | ≥90–97% | 1:1 by weight (A:B) |
| SPC-10062-W | Structural & sound-insulation panels | Water-blown | 80–120 kg/m³ | ≤20–27 mW/(m·K) | ≥150–220 kPa | ≥90–97% | 1:1 by weight (A:B) |
| ES6220 | Discontinuous panels | HCFC-141b | ≥40 kg/m³ | ≤22 mW/(m·K) @15°C | ≥140 kPa | ≥92% | Cream 25–40 s · Gel 130–180 s |
| DmcPanel 1812 | Discontinuous panels | HCFC-141b | ≥35 kg/m³ (core) | ≤24 mW/(m·K) @20°C | ≥140 kPa | ≥90% | Cream 15–30 s · Gel 120–240 s |
Typical values from our published technical data sheets (GB/T and ASTM methods as stated on each TDS). Exact values vary with grade, facer, mixing method and processing conditions. Full TDS available on request — no login required.
Key Applications of Our Rigid PU Foam
Building & Construction Industry
Rigid PU foam is poured between metal, MgO or OSB facers to make insulated sandwich panels, and cast into decorative mouldings and wood-imitation profiles.
- Excellent insulation: λ as low as 20–24 mW/(m·K) cuts energy loss through the building envelope.
- Lightweight and high strength: compressive strength of 140–220 kPa at only 30–43 kg/m³, so panels carry load without loading the structure.
- Dimensionally stable: good low-temperature stability and adhesion to the facer across the full panel cross-section.
Automotive Sector Components
Rigid and semi-rigid PU systems are used for interior and exterior vehicle components where weight and noise matter.
- Weight reduction: low-density foam cores cut component weight and improve fuel efficiency.
- Sound absorption: the cellular structure damps noise and vibration for a quieter cabin.
- Formability: good flow fills complex tools with an even density distribution.
Home Appliance Thermal Insulation
SPC-10081 is our dedicated refrigerator and freezer system, blown with cyclopentane (CP or CP/IP).
- Superior insulation: ≤21 mW/(m·K) at 15°C keeps cabinet energy consumption down.
- Fast demould: demould time of 6–8 minutes supports high line throughput.
- Even flow: excellent flowability distributes density evenly through the cabinet wall.
- Dimensional stability: ≤0.5% at -20°C and ≤1.0% at 100°C (GB/T 8811).
Protective Packaging Solutions
Foam-in-place rigid systems form to the product, so fragile and irregular goods travel protected.
- Excellent cushioning: the closed-cell structure absorbs shock and vibration in transit.
- Customisable: density and reactivity tuned to the part and the packing line.
Why Choose SPC as Your Rigid PU Foam Supplier?
Formulated in-house, not resold
We blend the polyol, catalyst, surfactant and flame retardant ourselves, so the system can be tuned to your line.
Compliant blowing agents
Cyclopentane and water-blown routes for EU and North American markets; HCFC-141b only where it is still permitted.
Batch CoA on every lot
Each shipment ships with a Certificate of Analysis covering the measured properties.
Ungated TDS & MSDS
Full technical and safety data sheets on request — no login wall.
Low MOQ from 10 kg
Trial quantities so you can validate the system before committing to bulk.
Matching MDI supplied
Recommended ratio for SPC-10081 is 100 polyol : 12–14 cyclopentane : 136–145 MDI.
Frequently Asked Questions
What density can I get from your rigid polyurethane foam?
What thermal conductivity do your rigid foams reach?
Which blowing agents do you offer?
Do you supply the matching isocyanate?
What is your minimum order quantity?
Can I get the TDS, MSDS and a free sample?
Related Rigid Foam Pages
Need a Rigid Polyurethane Foam System for Your Line?
Tell us your foam type, target density, blowing agent and volume — our engineers reply within 24 hours with a formulation and the full TDS.
