Products Description
The refrigerator board with PUR as the core material adopts the formula system composed of polyether polyol, low isocyanate index (about 110-120) and flame retardant. The skeleton structure of foam is composed of carbamate segments, and the product can only be used below 100 ℃. The thickness of cold storage panels is usually 50, 75, 100, 120, 150, 180, 200, and 250mm.
The cold storage board with PIR as the core material adopts a formula system composed of polyester polyol and high isocyanate index (above 250), with no or less use of flame retardant. The skeleton structure of foam is composed of carbamate segments and carbamate modified isocyanurate segments. The product can be used below 150 ℃. The thickness of cold storage panels is usually 50, 75, 100, 120, 150, 180, 200, and 250mm.
Product performance
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Fire rating standards |
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A |
Non combustible materials (such as rock wool, glass wool, stone, etc.) |
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B1 |
Oxygen index ≥ 30, flame retardant material. (e.g. special PIR polyurethane, etc.) |
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B2 |
Oxygen index ≥ 26, self extinguishing upon ignition, combustible materials (such as PIR polyurethane, PUR polyurethane, etc.) |
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B3 |
Oxygen index>23, self extinguishing after 5 seconds, flammable materials (such as flame retardant EPS foam, PUR polyurethane, etc.) |
The difference in performance between PUR and PIR
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PUR |
PIR |
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Fire resistance performance |
Polyurethane PUR foam: generally B3 grade, which can reach B2 grade by adding flame retardant. |
Polyurethane PIR foam: it is generally B2 grade, and can reach B1 grade by adjusting the concentration of polyisocyanurate ring and other formula technologies. |
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Thermal insulation performance |
Polyurethane PUR foam: thermal conductivity is generally 0.022-0.026W/mK (25 ℃) |
Pir cold room panels: thermal conductivity can reach 0.019W/mK (25 ℃) |
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Bulk density |
Polyurethane PUR foam: generally 40kg/m3 can meet the relatively satisfactory strength requirements. |
Polyurethane PIR foam: generally 40-45kg/m3 can meet the relatively satisfactory strength requirements. |
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Temperature resistance range |
Polyurethane PUR foam: Generally -185 ℃ -+110 ℃. |
Polyurethane PIR foam: about -196 ℃ -+205 ℃. |
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Polyurethane PUR sandwich panel: generally used continuously for a long time below+85 ℃. |
Pir cold room panels: (index index above 250): generally used continuously for a long time below+150 ℃. |
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Water absorption rate |
Polyurethane PUR foam: generally 2.5-3%. |
PIR foam: 0.9%. |
why choose us
PNS has currently been exported to countries such as the United States, the United Kingdom, Puerto Rico, Ireland, Brazil, and Argentina. If you have a project that requires sandwich panels, please send us drawings and detailed requirements. We have a technical team to provide support and can help you calculate the specific quantity of panels and design edge finishing parts for free.
fAQ
1.You are manufacture factory or trading company?
We are manufacture factory. You are welcomed to visit us at any time. In the workshop,it has a complete advanced equipment system for making steel structures and panels. So we can make sure the good quality and also the competitive price.
2.What is your difference with other products?
Our products have the environmental,protection,beautiful,insulation,fast installation,etc advantages.
3.Can you offer design service?
Yes,we have an engineer team and can design for you according to your requirements.Architectural drawing,structure diagram,processing detail drawing and installation drawing will be made and let you confirm in different time of the project.
4.What's the delivery time?
The delivery time depends on the size and quantity of building.Generally within 30 days after receiving the payment.And partial shipment is allowed for big order.
5.What's the payment term?
TT and L/C are acceptable; But T/T will be more appreciated. 30% deposit and balance before shipment.
6.Can you accept the inspection from a third party?
Yes. We have enough experience to cooperate with the inspection project and we have obtained ISO certification SGS certificate and the Australian official rockwool asbestos-free certification
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