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TPO Laminated Sandwich Panel - TPO coated composite metal plate

TPO Laminated Sandwich Panel


Thickness:  50mm – 150mm

TPO layer: 1.2mm / 1.5mm / 2.0mm

width:  1000-1200mm or customer’s requirement


Product Introduce

On the basis of traditional metal sandwich panels such as PU board, PIR board, and rock wool board, it adds the outermost TPO waterproof film layer, achieving the integration of the waterproof layer and the insulation layer.

TPO Laminated Sandwich Panel structural diagram
Level Material Function
Top layer TPO waterproof membrane (1.2-2.0mm) Waterproof, weather resistant, UV resistant
Upper steel plate Color coated steel plate (galvanized/aluminum zinc coated) Provides a rigid, supportive waterproof layer
Intermediate layer Insulation core material (PU/PIR/rock wool) Insulation, heat insulation, sound insulation
Bottom steel plate Color coated steel plate Bearing capacity, interior, and aesthetics

TPO film is usually firmly bonded to steel plates through hot melt composite technology or bonding process, without delamination.

Product Specifications

Item Parameters
Product Name TPO Film Sandwich Panel
Thickness 50 ~ 150 mm
Width 1000 / 1200 mm, Customer request
TPO membrane thickness 1.2 / 1.5 / 2.0 mm
fire rating A (rock wool core) / B1 (PIR core)
MOQ 10 tons
Processing Service Welding, Punching, Cutting, Bending, Decoiling
Payment Term 30% +70% T/T,100% L/C at sight
Transport Package Standard Seaworthy Packing

Main features and advantages

Superior waterproof performance

  • The top TPO film is made of thermoplastic material and can be seamlessly connected through hot air welding, completely eliminating the risk of leakage.
  • The waterproof layer is integrated with the board to reduce the construction process.

Quick construction

  • Prefabrication in the board factory and on-site hoisting can complete waterproofing and insulation.
  • No need for additional installation of waterproofing membranes or on-site welding of base layers.

Energy saving insulation

  • Using polyurethane (PU) or polyisocyanurate (PIR) core materials, the thermal conductivity is as low as 0.022 W/(m · K), and the energy-saving effect is significant.
  • High density rock wool (density ≥ 120kg/m ³), Class A fire protection (GB 8624-2012), thermal conductivity ≤ 0.040W/(m · K), combined with TPO surface layer thermal reflectivity (≥ 85%), can reduce roof temperature by 10-15 ℃ in summer, and save more than 30% energy for air conditioning.

Long weather resistance life

  • TPO membrane has the characteristics of * * -45 ℃ low-temperature bending without fracture * * (ASTM D746) and wind peel strength ≥ 10kPa (UL 580 Class 150), which can resist extreme weather such as typhoons and blizzards.
  • TPO waterproof membrane is resistant to ultraviolet radiation, ozone, and chemical corrosion, with a service life of up to 25-30 years.

Environmentally friendly and pollution-free

  • TPO membrane does not contain chlorides or plasticizers, meets green building material standards, and can be recycled and reused.

Strong system integrity

  • It can be combined with roof lighting strips, gutter systems, pressure strips, and flashing nodes to form a complete waterproof system.

Application areas

Roofs of various industrial plants

Large scale warehousing and logistics center

Food and pharmaceutical factory building (clean roof)

Airport terminal, exhibition hall

Cold chain storage and constant temperature workshop

Our Certificates

Customer affirmation

Customer praise-the product is recognized by customers
Customer praise, quality recognition, Wanzhi Steel

Why choose us ?

We are an integrated industrial and trade company that can produce steel independently and reduce costs.

From raw materials to finished products, we control quality throughout the process to ensure that the products meet customer requirements.

The combination of production and sales confidentiality can respond to orders quickly and shorten delivery time.

One-stop service, from consultation to production, and finally to after-sales service, provides all-round support.

We are self-produced, reducing dependence on external price fluctuations. In the face of sudden price increases, we can still deliver quickly and on time.

For inventory steel, we can provide preferential prices.

Contact us

Factory: Binzhou City, Shandong Province, ChinaList item

Company: Erqi District, Zhengzhou City, Henan Province, China

E-mail: info04@wanzhisteel.com

WhatsApp: +86 18736065220

Website: https://wanzhisteels.com

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