OEM & ODM services for all kinds of HVAC duct, PU FOAM and aerosol products


For manufacturing Thermal Insulated PU PIR Phenolic Fireproof Foam Board Energy Efficient Sandwich Insulation Panel requiring flexible craftsmanship and high-end technologies.The product is suitable for a wide range of industries like Other Heat Insulation Materials. We manufacture it in a variety of color and styles. In the future, SHANGHAI HAOHAI CHEMICAL CO.,LTD will continue to provide customers with better service, and continue to focus on technological innovation, is committed to building a complete product system, to provide customers with more diversified products.

Warranty:LifetimeAfter-sale Service:Online technical support, Return and Replacement
Project Solution Capability:total solution for projectsApplication:Supermarket
Design Style:ModernPlace of Origin:China
Brand Name:HaohaiCertification:CE


Light, safe, decrease the load of the building.

Easy to install, shorten the construction period.

Protect environment, sandwich structure with antioxidant surfaces.

High performance in heat insulating, can be served in both high and low temperature environment.

Fireproof, meet the National standard, makes building safe.

Soundproof, makes a quieter environment.

No need to leave space for insulation material installing, so that the story height can be reduced.

Long service life up to 20 years, very low cost in wastage and maintenance.

Nice appearance.

Thermal Insulated PU PIR Phenolic Fireproof Foam Board Energy Efficient Sandwich Insulation Panel

Haohai duct system including                                                                                                   

Haohai duct panels

Accessories for Haohai duct

Training and service for duct installation

Datasheet of tech & safety for duct installation

Undertake projects of duct installation

Product Data Sheet                                                                                                                        

Smoke temperature
Flame height  15mm
Thickness of panel  20mm
Density  40~69kg/m3
Compressive strength,10%  0.2MPa
Dimension stability  0.5%
Thermal conductivity  0.021w/m.k
Working temperature  -50 to +80°C

Comparison between Haohai duct and other ducts                                                  

Haohai duct
Zincification duct
Fiberglass duct
poor general general
8.32 8.8 1.1~1.3
Flame Retardancy
  Phenolic   A class
      PU      B1 class
A class A class ------
Service life
15~20 years
6~7 years 10~15 years 15~20 years
Yes Yes
A little






Easy to install, nice appearance, high efficiency Complex install, low efficiency Complex install, low efficiency Easy to install, nice appearance, high efficiency
Maintenance Low High High Low

Haohai duct satisfies the following standards:                                                                   

•  GB50243-2002

     Acceptance standard for construction quality of HVAC works.

•  GB50045-95

     Criterion of fireproof design of civil tall buildings.


Inspected by the National Construction Material Test center,

Haohai duct passed the formaldehyde volatilization test, could be applied indoor directly.

Approved by the National Quality Test Center and China Construction Material Association,

    Haohai duct is a stable qualify, safe and environment protective product.

Inspected by Shanghai quality monitor inspection spot, if s innocuous and a safe product.

There is no Freon in Haohai duct, and won, t destroy aerosphere.

As a result of low water absorbability of Haohai duct, it won5 t bring germ in the duct.

Installation Accessories                                                                                                              

Various flanges,H bayonet, Hooked hanger bracket, Aluminum shaped disk, Covering angle, G.I.

Square, etc.

Thermal Insulated PU PIR Phenolic Fireproof Foam Board Energy Efficient Sandwich Insulation Panel


Thermal Insulated PU PIR Phenolic Fireproof Foam Board Energy Efficient Sandwich Insulation Panel

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Take advantage of our unrivaled knowledge and experience, we offer you the best customization service.


In PU foam (OCF) industry, Haohai is one of the leading PU foam manufacturers in China.

They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.
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