Heat Insulating Foamed Polyethylene Sheet with Sticky Adhesive Layer “FoamAceEco”

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Heat Insulating Foamed Polyethylene Sheet with Sticky
Adhesive Layer “FoamAceEco”

1.

INTRODUCTION

Metal roofs are used in various architectural structures fortheir attractive appearance, ease of construction, andeconomy. But along with the enhanced energy-consciousness in recent years, they are frequently required tohave heat-insulating layers such as foamed polyethylene
and glass wool so as to provide upgraded performance interms of thermal insulation and dew condensation prevention.
Furukawa Electric has been supplying to the marketplace the products of foamed polyethylene sheet withprimer coating. In installing these products, customers
carry out by themselves the laminating and forming work
onto steel sheet before completing metal roofs in the formof folded-plate roof, crosswise-shingled roof, or lengthwise-shingled roof.
Conventionally, rubber adhesives have been widelyused in the laminating work of foamed polyethylene withsteel plate, but, from the standpoint of ecology mindedness, we have recently developed FoamAceEco. This
product uses a special sticky adhesive coating in place ofconventional primer coating on the polyethylene sheet toeliminate the use of adhesives, thus helping customers in
reducing the material costs in their working processes.
See Figure 1 for comparison of structures between theconventional and developed metal roofs.

2.

FEATURES

waste and enables ease of separation from steel
sheet, improving recyclability.
• It can be used as a roofing material for temporary fixing as well as for buffering.

3.

APPLICATION EXAMPLES• Crosswise-shingled roof for school gymnasium. SeeFigure 2.
• Temporary fixing of lengthwise-shingled roof forschool building. See Figure 3.
• Crosswise-shingled roof for detached house, guesthouse, etc.

Figure 2

Application example of crosswise-shingled roof forschool gymnasium.

Figure 3

Application example of temporary fixing for lengthwise-shingled roof.

FoamAceEco is a foamed polyethylene sheet with a special sticky adhesive coating, and its features include thefollowing:• No adhesive is needed.
• Because no separator is used, it produces no waste
at the site.
• It is removable as long as immediately after application, allowing easy reapplication. This eliminates

Steel sheet
Rubber adhesive
PrimerSteel sheet
Special sticky adhesive
Foamed polyethylene sheet

Foamed polyethylene sheet
Conventional

Figure 1

Developed

Structure of conventional and developed metal roofs.

Furukawa Review, No. 28

2005

68

Heat Insulating Foamed Polyethylene Sheet with Sticky Adhesive Layer “FoamAceEco”

4.

Table 1PROPERTIES• The adhesion property is stabilized as shown in
Figure 4. The peeling strength becomes even higher
than the initial value after the heat cycle test of inhouse method: Temperature rise in 4 hr ⇔ 80°C × 8hr ⇔ Temperature drop in 4 hr ⇔ -20°C × 8 hr.
• The mechanical strength is equivalent to that of 40fold expanded foamed polyethylene. See Table 1.

Test item

Peeling strength (N/25mm)

Unit

Measured value

kg/m3

25

Longitudinal

kPa

227

Transversal

kPa

175

Longitudinal%

114

Transversal%

140

Longitudinal

N/cm

12

Transversal

N/cm

13

DensityTensile strength

Elongation

Tear strength14

Physical properties of FoamAceEco.

12Hardness in compression(25 % strain)kPa

2010Thermal conductivity (0°C)

mW·m-1·K-1

31864

Test condition:
Temp. rise in 4 hr ⇔ 80°C x 8 hr ⇔ Temp. drop in 4 hr ⇔ -20°C x 8 hr

200510152025

For more information, please contact:
Foamed Plastics Sales Section, Sales Department,
Industrial Product Division, Energy & Industrial ProductsCompany
TEL: +81-3-3286-3461
FAX: +81-3-3286-3472

No. of heat cycle

Figure 4

Adhesion strength of FoamAceEco against heatcycles.

Furukawa Review, No. 28

200569