What are XPE and IXPE?

Release time:

2026-08-07

What is xpe foam?

XPE is a chemical crosslinked polyethylene foam, with low density polyethylene resin and a crosslinking agent and foaming agent through continuous foaming and high temperature, XPE is chemically stable, difficult to decompose, odorless and flexible.

 

XPE Foam Technical Specification

 

Test item

Items

5 Times

8 Times

10 Times

15 Times

20 Times

25 Times

30 Times

35 Times

Density kg/m3

200±30

125±15

100±10

66.7±8

50±6

40±4

33.3±3

28.6±2

Shore Hardness°

60~70

50~60

45~50

35~45

30~35

25~30

18~25

13~18

Water absorbtion (%)23±2℃,24h

≤0.02

≤0.02

≤0.03

≤0.03

≤0.04

≤0.04

≤0.05

≤0.05

Heat conductivity (w/m.k)

≤0.092

≤0.082

≤0.072

≤0.062

≤0.053

≤0.047

≤0.041

≤0.038

 

Its Features

  1. XPE foam has a water absorption of 0.01% and a thermal conductivity of 0.037W/mk;     

It is lightweight and has a density of 25-333Kg / m3; 

2.The texture is soft and can be rolled up for easy installation; 

3.Good ductility, the theory can be infinitely long;  

4.Sound insulation can reach 19dB;  

5.Flame retardant can achieve B1 level of building fire protection;

Closed Cell Cross-Linked Polyethylene Foam has many good properties

Acoustic insulation
Corrosion resistance
Cushion, buffer
Lightweight
Rebound elasticity
Shock absorption
Thermal insulation

 Waterproof, moisture-proof
Weather resistance

 

What is ixpe foam?

Full name:Physical crosslinked polyethyele foam, Irradiation crosslinked polyethylene foam

General Abbreviation in Intra-Industry:IXPE foam,IXLPE foam

IXPE (Irradiation cross-linked polyethylene) foam is based on low density polyethylene as raw material, change to independent obturator meshed bubble structure by using electronic irradiation.

It can be compounded with aluminum film, aluminum foil, PE filmor other materials.

 

Compared with XPE Foam ,  IXPE foam has more delicate cellular, more smooth and flat surface,

more excellent mechanical performance.

IXPE made by high-temperature foaming after electron accelerator for irradiation.electron accelerator produce electron energy change PE sheet internal construction so that it can be cross-linked, formed more steady net structure. The thickness has more choice, as low as 0.2mm make these grades of foam ideal for tape and seals, whether it be single sided or double sided.

 

 

 

 

IXPE Foam Technical Specification

 

Test item

Items

5 Times

8 Times

10 Times

15 Times

20 Times

25 Times

30 Times

35 Times

Density kg/m3

200±30

125±15

100±10

66.7±8

50±6

40±4

33.3±3

28.6±2

Shore Hardness°

60~70

50~60

45~50

35~45

30~35

25~30

18~25

13~18

thickness ≤3mm

55~65

45~55

35~45

25~35

20~25

20~25

15~20

15~20

Water absorbtion (%)23±2℃,24h

≤0.02

≤0.02

≤0.03

≤0.03

≤0.04

≤0.04

≤0.05

≤0.05

Heat conductivity (w/m.k)

≤0.095

≤0.084

≤0.073

≤0.065

≤0.055

≤0.045

≤0.040

≤0.040

What are the differences between XPE and IXPE?

XPE is chemically cross-linked, with rough surface. IXPE is physically cross-linked, with
smooth surface.