Polyurethane Structural Insulated Panels

Shenyang Qiangyun Color Steel & Steel Structure Co., Ltd. is one of the most reliable manufacturers and suppliers of polyurethane structural insulated panels in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to wholesale advanced polyurethane structural insulated panels in stock here from our factory. Also, pricelist is available.

In practice this removes two trades and a lot of sequencing risk. There is no separate structural framing layer to build and no separate insulation layer to fix afterwards, so the building envelope closes in one operation. That is why SIPs are used by prefabricated house manufacturers, modular container builders, cold-storage and cleanroom contractors, general contractors working to a fixed programme, and developers who want the envelope finished before the fit-out starts. It also removes the compaction and settlement problems of loose-fill insulation, because the insulation is bonded into a structural core and cannot slump.

Thickness is a structural decision here, not just a thermal one: the panel has to carry the load and span the purlin or joist spacing before anything else. Core-only U-values from lambda = 0.040 W/(m·K) are roughly 0.80 W/(m²·K) at 50 mm, 0.53 at 75 mm, 0.40 at 100 mm, 0.33 at 120 mm and 0.27 at 150 mm, before the 5-10% allowance for joints and fixings. Structural guidance: 50-75 mm for internal partitions and light cladding, 100 mm for loaded roof and wall spans, and 150-200 mm for cold stores and freezer envelopes where both the span and the U-value are binding. If you tell us the span and the imposed load, we will confirm the thickness against the load table rather than guessing.

Our plant sits in Liaoning with road access to both Dalian and Yingkou ports, which is why container bookings are rarely the constraint on a programme. We load standard panels into 20GP containers, use 40HQ containers where volume keeps freight per square metre down, and can consolidate LCL shipments for samples and small quantities. Loading plans are built against your panel schedule, and we will tell you the achievable utilisation before you book rather than after.

• Container loading: 20GP is the right choice for small and medium projects and for mixed orders where panel length is short; roughly 350-450 m² of 100 mm panel, depending on length and profile.
• Container loading: 40HQ gives the best freight per square metre - typically 700-900 m² of 100 mm panel. Because panels are cut to a maximum of 11.8 m they load efficiently, and the saving per square metre is usually the largest single logistics lever available to you.
• Container loading: LCL remains available for samples and small consignments, but it is the least economic per square metre - we will say so when the volumes make a full container the better choice.

Documentation is issued with every shipment: commercial invoice, packing list, bill of lading and certificate of origin, plus the mill certificates and, where required, the declaration of performance and fire classification for the build-up ordered. We can also arrange inspection before loading and supply photographs of the container being sealed, which is the cheapest insurance available on a long-distance order.

Both standard and custom panels are supported. Base plates, foam systems and pre-painted coil are held in stock in standard sizes; custom widths, thicknesses, colours and profiles are produced to your drawing. Lead time for standard product is 3-10 days; custom product is quoted against drawing approval rather than promised before it. If your programme is fixed, tell us the date at enquiry stage and we will schedule production around it.
of 3-10 days for standard products. Custom panels with special widths, thicknesses, and colors are also available to meet diverse project requirements and aesthetic preferences.

Shenyang Qiangyun was established in 2010. Our 15,000 m² factory in Liaoning runs 26 production lines with a daily output of roughly 20,000 m², and we have supplied projects in more than 20 countries across Southeast Asia, the Middle East, Africa, South America and Eastern Europe. - a 2008 founding date and a 50,000 m² plant - and both are wrong; the details above are the ones that appear on our business licence and our audit documents.

Choose these panels on the evidence, not on the certificate logos. We hold ISO 9001 for quality, ISO 14001 for environment, ISO 45001 for occupational health and safety and ISO 50001 for energy management, and metal substrates are supplied to EN standards. Panels are classified to EN 13501-1, with the report issued for the build-up and thickness you order, and thermal conductivity is verified to EN 12667. What we will not do is imply a certificate covers more than it does: where a market requires its own mark, we say so at quotation stage.

• MOQ: 100 m² - trial orders welcome, sample panels free of charge
• Payment: T/T, 30% deposit with the balance before shipment; L/C at sight accepted
• Delivery: 15-25 working days for production orders; 3-10 days for stock items; 3-7 days for samples
• Warranty: 10 years on material and performance, subject to the exclusions stated in the supply terms
• Samples: free of charge; courier freight at buyer's cost

Food manufacturing plant in Poland, 8,200 m² of exterior envelope, completed 2019. The client needed a structural envelope that also held temperature for production workshops, without a separate insulation trade on a tight programme. We supplied 100 mm PU edge-sealed rock wool panels; the sealed tongue-and-groove joints kept the envelope airtight, which is what stabilised the internal temperature and removed the cold bridging that had previously caused condensation above the production line. The panels met the applicable European EN standards and have resisted the humidity and corrosion of a temperate industrial environment since. One caveat worth stating: the energy benefit depends heavily on joint detailing and installation, so we supply the fixing and sealing guidance with the panels rather than treating it as somebody else's problem.

• Since 2010: 15 years of continuous manufacture, not 18 - our founding date is 2010.
• 15,000 m² factory with 26 lines: roughly 20,000 m² of daily output.
• Flexible MOQ: 100 m² trial orders through to full-container bulk programmes.
• Direct-from-factory pricing: no trading margin between the plant and your order.
• Programme reliability: 15-25 days for bulk, 3-10 days for stock items, 3-7 days for samples.
• Full customisation: thickness, width, length, profile and RAL colour to your drawing.
• Certified and evidenced: ISO 9001 / 14001 / 45001 / 50001, EN 13501-1 classification per build-up, EN 12667 thermal data.
• Complete trade support: FOB, CIF or DDP, full export documentation, loading from Dalian or Yingkou.
• 10-year warranty, with exclusions stated up front rather than discovered later.

Thickness is chosen against the structural span first and the thermal target second - a panel that carries the load but misses the U-value is still the wrong panel, and the reverse is worse.

• Building envelope systems: complete wall and roof cladding supplied as one package, including trims and fixings, so the envelope arrives as a system rather than as parts.
• Retrofit and energy upgrade: over-cladding packages for existing buildings, with the existing substrate surveyed before we quote.
• Prefabricated systems: modular wall and roof panels sized for container cabins and volumetric units, cut to the module grid so site cutting is minimal.
• Cold chain: panels for chilled and frozen envelopes, supplied with vapour-control detailing reviewed before production.
• Project support: from drawing review and load checking through to installation guidance on site - and where a panel is the wrong answer, we will say so before you buy it.

• Pre-sale: free technical consultation, a written quotation with the calculation behind it, and sample panels delivered to you.
• In-production: production photographs, inspection before loading, and trade documents prepared against your destination's requirements.
• Post-delivery: installation guidance by video or on site, and a 24-hour response to technical issues.
• Warranty: 10-year material and performance guarantee, plus continuing technical support afterwards.

Panels leave the plant with full-surface protective film, corner guards and reinforced fumigated pallets, stretch-wrapped for ocean freight. We work FOB, CIF or DDP and issue the commercial invoice, packing list, bill of lading and certificate of origin with every shipment. Loading is supervised and photographed, and where a container sits in a humid port we add desiccant - because a wet core is a preventable complaint.

Talk to us about PU edge-sealed rock wool structural insulated panels. Send the span, imposed load and target U-value and we will return a thickness confirmed against the load table, an indicative U-value, a container loading plan and a loaded price - normally within one working day. Shenyang Qiangyun, established 2010, operates a 15,000 m² plant in Liaoning with 26 lines and roughly 20,000 m² of daily output, shipping from Dalian and Yingkou. Samples and the full documentation set are available with any serious enquiry.

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