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

Built for Temperature-Controlled Buildings

Conditioned space is expensive to run, and the envelope is where the money goes. Heat that enters through the walls has to be taken out again by the refrigeration plant, so every watt saved at the wall is a watt the compressor never sees. PUR offers the lowest conductivity of the common rigid insulants, which means the duty cycle is met with a thinner wall than EPS or mineral wool would need and more of the floor plan stays usable. The closed cells absorb almost no water, so performance does not drift as the insulation ages, and the metal faces can be washed down as often as hygiene procedures demand.

Specification	Technical Data
Designation	Wall Polyurethane Composite Panels
Facing sheet	Pre-painted galvanised (PPGI) or galvalume (PPGL) coil, hot-dip zinc-coated sheet, plain or painted aluminium
Core	Rigid closed-cell PUR foam, density controlled, blown with a low-GWP agent
Stocked depths	50, 75, 100, 120, 150 and 200 mm
Facing gauge	0.3 mm to 0.8 mm, selected for the duty
Working width	960 mm or 1,000 mm
Delivered length	Cut to the room height, up to 11.8 m
Nominal density	38-43 kg/m3, with a 45-50 kg/m3 grade for heavily loaded walls
Declared conductivity	0.022-0.024 W/(m.K)
Water uptake	Not more than 1.5% by volume
Fire classification	B1 to EN 13501-1 and Class 2 to ASTM E84; the foam does not sustain flaming
Edge joint	Interlocking tongue and groove, sealed against vapour drive
Allowable pressure	2.5 kN/m2 minimum
Wind resistance	Verified to 1,200 Pa and above
Water tightness	IPX4
Useful range	Minus 40 to plus 80 degrees Celsius
Expected service	More than twenty years in normal ambient conditions
Shades	Signal white, light grey, sky blue, brick red; any RAL reference to order

Choosing Depth by Operating Temperature

Start from the temperature the room has to hold, then check the pull-down rate and the plant capacity:

Room duty	Depth we advise	Reason
Ambient picking halls and packing areas	50-75 mm	Keeps chilled air where it belongs at the lowest capital cost
Chill stores held at +2 to +8 degrees	100 mm	Holds the band through door openings and defrost cycles
Freezer stores at minus 18 to minus 25 degrees	150 mm	Less heat gain, so compressors cycle less often
Blast freezers and spiral tunnels	200 mm	Survives rapid pull-down without condensation in the build-up
Humid or coastal sites	100 mm and thicker	PPGL facings resist salt-laden air and keep the vapour seal intact

Advantage Comparison

Measured against EPS board, mineral wool board and built-up insulated partitions, the differences that matter to a cold-room operator are these:

Six points that decide the specification

Lower conductivity than EPS - the duty cycle is met with a slimmer wall, so more pallet positions fit inside.
Closed cells that reject water - no slow drift in performance and no sogging after wash-down.
PPGL skins that shrug off salt-laden air and cleaning chemicals.
Low-GWP blowing agent and REACH-conforming chemistry, so nothing taints stored product.
Sealed interlocking joints - vapour cannot migrate into the core, which is what kills most cold-room walls.

Applications

Type of facility	Use
Food processing	Chill corridors, cutting and packing halls held near +10 degrees
Cold chain	Chill and freezer stores, dock enclosures, blast tunnels
Pharmaceutical	GMP stores and stability rooms with logged temperature
Retail	Back-of-house cold rooms for supermarkets and dark stores
Roof interface	Pairs with insulated roof decks to close the thermal box

Customization

Depth, length, facing gauge and shade are made to the room schedule, and we pre-cut openings for doors, pipe sleeves and evaporator penetrations so site sealing stays simple. Long walls are detailed to minimise joints, and cam-lock or concealed fixing is available depending on whether the room may later be extended.

Company & Factory Profile

Manufacturing began in 2010 at a 15,000 m2 site running continuous laminating lines with daily capacity close to 20,000 m2. Cold-room contractors make up a large share of our export base, so panel schedules, joint details and fixing layouts are produced in-house, and a trial order receives the same attention as a container load.

Certifications & Quality Assurance

Quality is controlled under ISO 9001, with environmental, occupational health and energy management certified to ISO 14001, ISO 45001 and ISO 50001. Facing coil is purchased to EN standards, fire performance is documented to EN 13501-1 and ASTM E84, and independent inspection by SGS or Intertek can be arranged before loading.

Budgeting, Order Size and Lead Time

Depth band	Indicative FOB, USD per m2	Typical duty
50-75 mm	3.20-3.80	Chill corridors and packing halls
100-120 mm	3.80-4.50	Chill stores and general cold rooms
150-200 mm	4.50-5.50	Freezer stores and blast tunnels

Order minimum 100 m2; trial quantities accepted
Payment: 30% by telegraphic transfer with the order, balance before loading; sight letters of credit accepted
Lead time: 15-25 working days, or 3-7 days for sample panels
Guarantee: ten years on material and thermal performance
Samples: free of charge, freight to the buyer's account

Project Cases

A seafood processor in Jeddah, Saudi Arabia, completed a 4,500 m2 chill and freezer complex in 2022 using 150 mm wall board with PPGL facings on the seaward elevation. Ambient temperature regularly passes 40 degrees and the site sits in salt-laden air, so corrosion resistance and vapour tightness drove the specification. Panels were cut to the full 9 m wall height to remove horizontal joints, and the refrigeration contractor recorded a shorter duty cycle than in the EPS-built hall alongside.

What Sets Our Cold-Room Panels Apart

Fifteen years of cold-room work - panels delivered into chill and freezer projects across more than twenty countries.
Continuous laminating lines - foaming, curing and cutting in one pass, so density and bond strength do not drift between batches.
Trial quantities from 100 m2 - enough to build a real cold room and prove the numbers, not just a sample card.
Priced 30-50% below European and Australian brands - same declared conductivity, same test standards.
Stocked depths shipped in 3-10 days - useful when a plant failure forces an unplanned rebuild.
Drawings issued with the quotation - panel schedules, joint details and fixing layouts prepared before manufacture.
Inspection welcome - SGS, Intertek or your own inspector before the container is sealed.
Vapour-seal detailing - we check the dew point through the build-up before the order is released.
Ten-year guarantee on material and thermal performance, backed by 2,500 completed projects.

Engineering Support We Provide

Thermal load checks - wall U-value and estimated heat gain run against your set point and ambient.
Condensation risk assessment - vapour pressure gradients checked so the build-up stays dry at the cold face.
Panel scheduling - every board numbered and drawn, including penetrations and trim.
Retrofit of ageing cold stores - over-cladding existing rooms without stripping them out.
Refrigeration interface - details agreed with your contractor for evaporator and pipe entries.

Service Commitments

Before order: load calculations, a drawn quotation and sample panels dispatched.
During manufacture: weekly photographs, density records and inspection before the container is sealed.
After delivery: joint-sealing instructions, fixing drawings and a named engineer reachable within one working day.
uarantee: ten years against material or thermal defect, with technical advice thereafter at no charge.

Export Packing and Freight

Boards are stacked face to face on foam separator pads, edge-protected, strapped to fumigated timber pallets and shrink-wrapped under a waterproof hood. Containers are loaded from drawings that balance weight across the axle, and dunnage is fitted to stop movement in transit. FOB, CIF and DDP terms are all available, and bills of lading, invoices, packing lists, certificates of origin and coating declarations are issued by our own export team.