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Polyurethane (PUR) and polyisocyanurate (PIR/PIR+) foams are expanded plastics produced as a result of a polyaddition reaction with isocyanates in the presence of activating and stabilizing agents. As the blowing agent we use a traditional hydrocarbon - pentane, which is perfectly safe for the ozone layer. By using special polyester-derived polyols in polyisocyanurate (PIR/PIR+) foams, we obtain more aromatic bonds. Additionally, by means of increasing the so-called index in appropriate conditions, polyisocyanurate rings of high chemical resistance are produced. As a result, in comparison to flat rings in the PUR foam, in the PIR/PIR+ foam three-dimensional structures are obtained.
The effect is that the PIR/PIR+ foam behaves much better in fire than the PUR foam. It also exhibits better mechanical and insulating properties. PUR/PIR/PIR+ foams are characterised by very good physical and chemical parameters, high resistance to moisture, high chemical resistance and resistance to fungi and mildew. Compression strength with 10% deformation is 150 kPa, with density of 40 kg/m3± 3.
We offer a range of Headstream PIR-cored fire resistant insulated panels for all types of temperature controlled applications & controlled environment projects.
The high thermal performance of the PIR (PolyIsoCyanurate) core offers higher energy savings and/or reduced thicknesses of construction when compared to other insulated panel systems. They are fire resistant, hygienic and fibre free.



Name | Specification | ||||
Density of PIR/PUR/PU | 40-60kg/m3 | ||||
Effective width | 925,1000mm | ||||
PIR/PUR/PU core thickness | 50mm,75mm,100mm,120mm | ||||
Steel thickness | normal:0.37-0.7mm | ||||
Length | According to customer's request, but if container transportation,normal less 11.8m | ||||
Color | China blue,China white,as customized | ||||
surface material | PPGI steel, GI steel ,PPGL steel ,GL steel,stainless steel304 | ||||
core material thickness | 50mm Temperature 5℃ or above | ||||
core material thickness | 75mm Temperature 0-5℃ | ||||
core material thickness | 100mm Temperature -10 - -18℃ | ||||
core material thickness | 150mm Temperature -25- -36℃ | ||||
core material thickness | 200mm Temperature -36℃ lower | ||||
core material thickness | 250mm Temperature -40 - lower | ||||








1, the company professional to do sandwich panel and profiled steel sheet.
2, the production is the biggest supplier in China
3, stable product quality , supply, the good faith management
Min. Order: one 20 container, more quatities, more cheaper
Min. Order: one 20 container, more quatities, more cheaper
Min. Order: 1500M, more quatities, more cheaper
Min. Order: 25 Tons, more quatities, more cheaper
Min. Order: 25 Tons more quatities, more cheaper
Min. Order: one project
Through nearly 30 years of development, an industrial layout with mainly steel structure building and metal cladding products was formed, including metal exterior wall, metal roof, clean room cladding material, cold storage cladding and steel structure engineering.It has 7 major intelligent manufacturing bases in Shandong, Chongqing, Jilin, Hubei, Guangdong, Guangxi and Ningxia,with an annual output of high-end polyurethane energy-saving board of 25000000 meters.
We will always put customers in the first place, wholeheartedly serve every product customer!


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