Pir and Pur Polyurethane Sandwich Panel Features

In this article, I would like to share some useful information about PIR foam insulated metal cold room panels with you. First, we will summarize what PIR foam is. Second, we will explain what is the difference between PIR and PUR Polyurethane. Finally, you will be able to choose PIR foam insulated cold room panels that best suit the needs of your project.

WHAT IS PIR? WHAT IS THE DIFFERENCE BETWEEN PIR AND PUR POLURETHANE?

PIR is short for Polyisocyanurate. PIR foams exhibit better fire properties than PUR (Polyurethane) ones due to the presence of isocyanurate rings. The chemical composition is similar, Polyol and Isocyanate; is the ratio of these components that change (expressed as an isocyanate index).

While the above explanation may seem worthless, it's really important to understand it.

There are different types of PIR FOAM

The critical information I want you to know is that PIR foams have different and different properties. Why is this information relevant to you?

PIR foams are many and differ in fire behavior. The higher the isocyanate excess, the higher the relative concentration of the isocyanurate rings to the urethane bonds, the better the fire performance.

THE IMPORTANCE OF PIR INDEX

So when we talk about PIR foam, we should ask our suppliers to explain the PIR index, also called the Polyol and Isocyanate ratio.

Why is this important?

While PIR foams generally have a better fire behavior than PUR foams, some PIR foams have better fire ratings than others. Some of the PIR foams achieve better fire test results than others: these are those with a higher index.

RESULT

Most of the insulated metal cold room panel users have heard of the PIR foam option. After reading this article, you know that there is more than one PIR foam. First of all, for security reasons, you know that it is necessary to ask the PIR index of insulated panels for your project.

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Pir and Pur Polyurethane Sandwich Panel Features

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