KAWFOAM – Extruded Polystyrene (XPS) Foam

Extruded polystyrene (XPS) foam insulation is a rigid, closed-cell foam product thatcanbe used in various applications for insulating building. Foam plastics are composed of millions of tiny cells or bubbles. When the cells are completely intact with no holes or spaces between the cells - it is called closed cell foam. When the cells have holes connecting one cell to another - it is called open cell foam. All other factors being equal, closed-cell foam also tends to be stronger (in bending and compressive strength) than open-cell foam. In addition, XPS tends to maintain its R-value over time due to its moisture resistant properties.

Extruded polystyrene foam begins with solid polystyrene crystals. The crystals, along with special additives and a blowing agent, are fed into an extruder. Within the extruder the mixture is combined and melted, under controlled conditions of high temperature and pressure, into a viscous plastic fluid. The hot, thick liquid is then forced in a continuous process through a die. As it emerges from the die it expands to foam, is shaped, cooled, and trimmed to dimension. This continuous extrusion process results in a unique foam product with a uniform closed-cell structure, a smooth continuous skin, and consistent product qualities, qualities unequaled by other insulation types.

Insulation levels are specified by R-value (thermal resistance). Inch for inch, the long-term R-value of XPS products are among the best. R Value is a measure of the insulation's ability to resist heat traveling through it. The higher the R-value, the greater the insulating value.
The proper type of XPS insulation in your building will provide a continuous thermal barrier, minimizing the heat-flow through the walls, ceilings, and floors. The result is a more comfortable home with reduced heating and cooling costs. Installing insulation properly is as important as the type and level of insulation because gaps, voids, compressions, and moisture reduce the effectiveness of insulation and allow unconditioned air to enter your home.
The moisture resistance and high R-value to thickness ratio also make XPS ideal for insulating the exterior and interior of building. Because moisture can cause significant problems to a structure, XPS can offer builders a product that impedes moisture while insulating at the same time, as opposed to having to deploy multiple strategies to accomplish this task.

According to the physical characteristics and manufacturing method, KAWFOAM is classified as below:

KAWFOAM  Normal

KAWFOAM Normal is our basic product and this product is widely used in heat insulation applications. KAWFOAM Normal is manufacturing with basic Extruded Polystyrene standards.

KAWFOAM Super

KOWFOAM Super is made up with chemical additives which are basically used for resistance from fire.

KAWFOAM Supreme

KOWFOAM Supreme is made up with special flame retardant additives. It is not flammable and completely protected from spreading FIRE.
It is under the category of B2-materials according to DIN 4102. KOWFOAM is highly recommended by consultants and authorities due to the high fire resistance. It should not be exposed to open flame or other ignition sources on site, during storage, installation, and use.

These products offer the following features and benefits:

Features

Benefits

Thermal Insulation

Resist the Heat Flow

Air Resistance

Reduced Air Infiltration (Drafts) Through Walls - Saves Energy and Dollars

Moisture Resistance

Will Not Absorb Water - Reducing Moisture Problems

Chemical Resistance

Resistant to many common chemicals such as: acids, water based paints, alcohol based paints, cement, asphalt, etc.

Light Weight

XPS Foam Sheets Are Easy to Handle

Durable

Less Breakage at the Job Site - Saves Time and Money

 

Property

Test Method

Unit

KAWFOAM– Normal

KAWFOAM -Normal (Fire Retardant)

KAWFOAM – High

KAWFOAM-High (Fire Retardant)

Density Range

DIN 53420
ASTM D 1622

Kg/m3
Lb/ft3

32- 35
2.0-2.2

32-35
2.0-2.2

38-42
2.42-2.6

38-42
2.42-2.6

Thermal Conductivity:
Fresh as manufactured at 4.4oC (40oF)
Mean temperature of test

Laboratory value at 10oC (50oF)
Mean temperature of test

 

5 years aged (design) value at 24oC (75oF)
Mean Temperature of test

DIN 52612
or
DIN 52616

ASTM C 177-97
Or
ASTM C 518-98

ASTM C 177-76
Or
ASTM C 518-76

W/mok

Btu in/sq.ft hr f

W/mok

Btu in/sq.ft hr f

W/mok

Btu in/sq.ft hr f

0.016

0.11

0.027

0.19

0.032

0.22

0.016

0.11

0.027

0.19

0.032

0.22

0.016

0.11

0.025

0.19

0.03

0.22

0.016

0.11

0.025

0.19

0.03

0.22

Compressive Strength at 4% deflection

DIN 53421
ASTM D 1621-73

k Pa
Psi

280-300
40-43

280-300
40-43

480-660
70-100

480-660
70-100

Water vapor diffusionresistance factor
Water vapor permeability

DIN 52615
ASTM C 355-64

M
Perm Inch

100-225
0.4-0.6

100-225
0.4-0.6

100-225
0.4-0.6

100-225
0.4-0.6

Water Absorption bySubmersion

DIN 53428
28 days submersion on whole board
ASTM D 2842 (+/- 1% by vol precision)

% by Vol

 

% by Vol

0.1

 

<1.00

0.1

 

<1.00

0.1

 

<1.00

0.1

 

<1.00

Flame Spread

ASTM 84

 

75

-

75

-

Smoke Developed

ASTM 84

 

450

450

450

450

Capillary

 

 

Nil

Nil

Nil

Nil

Liner Coefficient of thermal expansion and contraction (Heat soaking condition)

 

C – 1
F – 1

70.10-6
39.10-6

70.10-6
39.10-6

70.10-6
39.10-6

70.10-6
39.10-6

Flammability

DIN 4102

Building Material Class

-

B1/B2

-

B1/B2

 


  • Cargo & Heavy
    Equipment
    Transport Service

  • KAWFOAM -
    Extruded Polystreme

  • Expanded Polystrene

  • Welded Wire Mesh/
    Welded Steel Mesh

  • Expended Mesh
    Brick Mesh

  • Angle Bead

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