Multi Layers

Polynum™ Multi layers products consist of combinations of bubbles, xpe foam, and/or layers of aluminum foils in between the bubbles Polynum™ Multi layers provide several advantages. Combination of layers allows better combat against all three (3) heat flow: , and . For example, combining XPE Foam in-between two layers of bubbles such as in Polynum™ Multi delivers a superior thermal break when used in steel walls frame buildings. Adding aluminum foils facing in, creating a patented internal reflection, such as in Polynum™ Ultra, improving the overall thermal resistance of the material itself (material R value). In addition, adding layers breaks the sound waves, and each Polynum™ Multi layers products delivering better sound reduction properties.

In order to ensure durable performances in various conditions, our products are designed and manufactured with unique recipes enable us to meet today’s constructions standards and requirements. Our products are tested in leading international laboratories for delamination, corrosion, cracks, fungus, shrinkage and strength to guarantee our products performances.

Example of Polynum™ Multi layers product:

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A direct flow of heat through a material, resulting from direct physical contact. Heat transferred by conduction is governed by the fundamental equation described by Fourier’s Law: (rate of heat flow) = k x (Area) x (Temperature Gradient). Thermal conductivity: The ability of an object to move heat from one part of itself to another part. The higher the K value (thermal conductivity value), the faster the heat will transfer along the substance. Air has very low K (thermal conductivity). Vacuum’s thermal conductivity equals to zero (such as in outer space). Heat conduction can not take place in vacuum! Polynum™ products make smart use of air and low K materials to minimize thermal conductivity and providing protection against thermal bridges between building elements.
Heat transfer by movement of air. Convection is the circulation of hot or warm air. As the air heats up, it becomes less dense, and rises. Cool air is then forced down and warmed by the heat source in a continuous cycle, or convection loop. The stiller the air is, the less heat transfer occurs through convection. Polynum™ products are totally airtight and effectively seals out wind. Its internal composition – trapped dry air bubble film and layers of steady trapped dry air – considerably reduces convection. Same as conduction heat, convection heat is not possible in vacuum. The different of temperature between hot and cold area is described as thermal gradient.

The flow of heat energy between two surfaces with no physical contact (I.R Radiation) Resistance to radiation measured by Emissivity (E). The lower the Emissivity value the better the resistance to radiation heat. The more the radiation is reflected, the less heat transfer occurs. Polynum™ two faces made of 99% pure High Resistance Aluminum give it a reflective power of 97%. Radiation is the only form of heat which transfers through vacuum!


A thermal break or thermal barrier is an element (such as used in Polynum™ bubbles\foam) of low thermal conductivity placed in an assembly to reduce or prevent the flow of thermal energy between conductive materials. We lose fair portion of heat (winter, cold climate) via thermal bridges through conductive heat flow. Using insulation with an embedded thermal break such as Polynum™ Multi a will help to minimize it.
Material R value is a measure of the flow of heat (Thermal transmittance), through the material itself, given a difference in temperature on either side of the said product. Material R value depends on the properties (K value), of the given product. Using Polynum™ innovative reflective bubbles (HIR = High Internal Reflection) such as in Polynum™ Ultra, improves the material R.
The combination of various layers with good sound absorption properties, (NRC), help to absorb sound effectively.

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