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What is XPS Foam Board?

Extruded Polystyrene Foam starts as solid pellets of polystyrene resin. We first feed the plastic pellets into an extruder where they are melted and mixed with critical additives to form a viscous liquid. Then we inject a blowing agent to expand the plastic product. Under well-controlled heat and pressure, the plastic mixture is forced through a mould to form the desired shape. Finally, the rigid foam is trimmed to a custom size and this is the final XPS foam board.

Features of XPS Insulation Board

1.Superior thermal Insulation
XPS insulation board has dense surface layer and closed-cell structure inner layer. Its thermal conductivity is much lower than EPS, so it has better thermal insulation performance than EPS. For the same exterior walls, its thickness can be less than other types of insulation materials.

2.Excellent resistance to moisture
Even in a highly humid environment, Extruded polystyrene board can still maintain good thermal insulation performance; suitable for cold storage and other buildings with special requirements for insulation, can also be used as an exterior wall finish material for the building of brick or stone.

3.Easy to use and install, no special treatment is needed for the construction of XPS foam board

4.High compression strength (between 150-1000kpa)

5.High density and low water absorption rate      

6.A wide range of applications, it can be used in exterior walls, floors, roofs, cold storage, high-speed rail, etc.

Advantages of Feininger XPS Foam Board

(1) Green and Eco-friendly
Feininger XPS foam board adopts the most advanced CO2 foaming technology, 100% Freon (CFC and HCFC) free production process, which will not destroy the ozone layer.
Therefore, our XPS foam board has higher density and is more eco-friendly. Also, there are no radioactive or volatile substances, free of formaldehyde, safe and environmentally friendly for indoor use.
(2) Multiple capacity options
Feininger offers customized service. We can produce different specifications of XPS insulation board to meet the market and customer needs.
(3) Excellent after-sales team
We have domestic and foreign XPS extruded board experts who are providing 24-hour online service.
(4) Own many international certifications and technology patents, such as ISO9001:2008, ISO14001:2004 and CE
(5) Demonstration unit of world environmental protection organization and president unit of China Polystyrene Association.
(6) Developed and manufactured the first extruded polystyrene foam production line in China.

Feininger XPS Foam Board Specification

Color

  Blue, Yellow, White

Length

  1.2m, 2.4m, 2.5m or Customization

Width

  600mm, 1200mm or Customization

Thickenss

  6mm-120mm, or Customization

Surface

  Hair, Smooth, Grooved, Embossing   

Compressive Strength

  150KPa-1000KPa

Water Absorption

  ≤1.5%

Heat Conductivity Coefficient

  0.030-0.035W/(m·K)

Fire Rating

  B1, B2, B3

OEM

  Acceptable

Applications of XPS Insulation Board

XPS extruded insulation board has superior insulation performance, excellent vapor barrier property, and extremely low water absorption under high humidity environments.

(1) Civil Engineering 
XPS extruded foam board can settle the problem of water channels frost cracking in canal engineering in cold regions. In the South to North Water Diversion Project XPS boards were used as the anti-frost material of the channel. The bonding strength is high between Feininger XPS foam boards and concrete layers. The engineering practise applications show that the XPS board can meet the requirements of mechanized concrete construction.

(2) Cold Storage Purification Engineering 
XPS foam boards can prevent moisture condensation effectively. Therefore, this material is widely used in cold storage rooms with superior resistance to water vapor penetration and high compression performance.

(3) Building Insulation and Decoration Field
Usually, about 15%-20% of the heat loss is through the floor/roof in buildings, so it's very important to offer dwellers a comfortable environment by effective insulation treatment to avoid condensation on the floor/roof. XPS foam board as building insulation has incomparable advantages. It can be used in the following fields.
* Roof insulation system
* Wall insulation system
* Floor insulation system
* Basement insulation system
* All kinds of composite sandwich panels
* Decorative molding 
* Decorate condole top

Feininger XPS Insulation Board Cases

(1) Nanjing South Railway Station
 
(2) Beijing-shanghai High Speed Railway
 

XPS Foam Board vs EPS Board

Performance Extruded Polystyrene (XPS) Expanded Polystyrene (EPS)
Raw Materials Polystyrene resin Polystyrene resin
Manufacturing Process XPS is manufactured using an extrusion process. This continuous process produces a closed cell structure with a smooth skin on the top and bottom of the board. EPS is made from foam beads in a mould, and then heat or steam is applied directly to the beads, causing them to expand and fuse together.
Thermal Conductivity (W/m·K) ≤0.030 ≤0.042
Compressive Strength 150KPa-1000KPa Up to 400Kpa
Water Absorption ≤1.5% ≤4%
Size Width: 600mm, 1200mm or Customization
Length: 1.2m, 2.4m, 2.5m or Customization
Thickness: 6mm-120mm
Width: up to 1200mm
Length: up to 400mm
Thickness: up to 90mm

 

 

 

In summary, the biggest difference between XPS foam boards and EPS is the cell structure, therefore, compared to XPS, EPS has worse water absorption and a lower R-value per inch.

Extruded polystyrene foam insulation boards feature very well defined, uniform closed cells and continuous walls. The combination of water-resistant polystyrene polymer and closed-cell walls allows XPS foam to achieve a very low water absorption rate.

How to distinguish between inferior and high quality XPS foam board?

In the extruded polystyrene board market, some inferior products are mainly made of recycled plastic foam, such as plastic lunch boxes, so their quality is not up to standard, and the compressive performance is also extremely poor.

The use of this inferior XPS insulation board may cause the ground cracking deformation, because it contains a large number of impurities, the water content will gradually rise in the process of use.

On the one hand, it will lead to a decrease in the insulation effect of the extruded board. On the one hand, this kind of board can not achieve the insulation effect in the wet environment, and will also cause great harm to health.

So what are the advantages of high quality XPS foam board?

Using good quality XPS insulation board as external wall insulation, the temperature of the structural layer wall part is close to the indoor temperature, which means that when the indoor air temperature rises or falls, the wall can absorb or release energy, which is conducive to maintaining stable room temperature.

In winter, when the heat from the room tries to pass through the wall, it will be blocked, thus reducing the consumption of indoor heat; In summer, XPS insulation board will block solar radiation and external heat into the room. Therefore, XPS foam board is able to create a comfortable environment both in cold and hot seasons.

Feininger XPS foam boards adopt world-class production lines and are manufactured in strict accordance with the ISO system. The products have superior thermal insulation, good moisture resistance and high compression resistance.

How long does XPS insulation board last?

Because of its robustness and water resistance, rigid foam insulation board like XPS insulation board typically lasts 100 years or more, which means you never have to worry about replacing it.

Is XPS foam board environmentally friendly?

XPS insulation board is 100% recyclable and can contribute greatly to reducing energy consumption. Once installed, it can last for decades, significantly reducing a building's carbon footprint over its lifetime.

Tips for selecting best XPS insulation board

xps insulation board1 xps insulation board 2

Color&Smell

Generally speaking, there are many kinds of colors of XPS insulation boards on the market, such as black, white, and blue. But the color actually doesn't affect the quality of XPS insulation board, as long as it does not turn grey, black or dark. In addition, we can break the polystyrene foam board and smell the odour. High-quality XPS foam board is basically odourless after breaking, while poor quality one will be affected by raw materials and other additives, producing a pungent plastic smell.

Foam Cell
The main use of extruded polystyrene foam board is energy saving and heat preservation, which is mainly due to its continuous and uniform closed cell structure on the surface. When you observe the board, you will find that there are many foam cells on it, which are for better concentration of heat, to absorb the heat from the air evenly and distribute it evenly. So the more uniform these foam cells are, the better the quality of XPS insulation board will be.

Compressive Strength
Since extruded foam boards are often used for floor heating insulation, basement maintenance, road base insulation, airport floor insulation, etc., the compressive strength should not be neglected. Usually, XPS foam board for floor heating requires a compressive strength of 200KPA or more. Therefore, when buying XPS insulation boards, you must make a clear inquiry from the XPS foam board supplier, and then select based on your needs.

Besides, we can also use our fingers to press gently to test its compressive effect. Under normal circumstances, the press marks of high-quality extruded panels are basically invisible to the naked eye, but inferior extruded panels have obvious dents when pressed, so you need to be more careful when selecting.

Raw Material
High-quality XPS insulation boards are made of polystyrene resin as the raw material, and it is important for buyers to note whether the product is made of this material when selecting it. Many people will tend to choose a lower-priced product, but that kind of extruded foam board is usually of poor quality and is likely to be made of used boards. The extruded foam board made of polystyrene resin not only has uniform and dense foam cells and outstanding insulation effect, but also has a long life span of up to 50 years or more.

Feininger is a professional XPS insulation board manufacturer. Our products adopt world-class production lines and are manufactured in strict accordance with the ISO system. Feininger XPS foam boards have superior thermal insulation, good moisture resistance and high compression resistance. If you want to buy high-quality XPS foam boards, contact us now!
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