Hot Melt Adhesive for AL/PE Composite Pipe(3H)

Characteristic

3H is polyethylene grafted with maleic anhydride, which is a kind of adhesive polyethylene resin especial for AL/PE(PEX) composite pipe (overlapped welded). 3H keeps good properties of polyethylene such as good chemical solvents resistance and weather resistance, good processing and mechanical performance, at the same time, it also has excellent cohesive property and can bond very firmly to polyethylene and metals such as Aluminum, iron, lead, etc.


Typical Property Data of 3H


Performance
ASTM method
Unit
Index
Appearance
Visual Examination

White or light yellow equal pellets
Density
D-1505
g/cm3
>0.94
Melt Flow Rate
D-1238
g/10min
1-6
Tensile Strength at Break
D-638
MPa
＞12
Elongation at break
D-638
%
＞400
Charpy Impact Strength
D-256
J/m
unbroken
Vicat Softening Point
D-1525
℃
>101
Melt point

℃
129



Application

The special adhesive resin for aluminum plastic composite pipe is suitable for coextrusion or coating process, and can also be used for steel pipes, iron pipes, lead pipes, etc.For anticorrosive coating, the recommended extrusion temperature is 180 ℃, 200 ℃, 220 ℃, die 230 ℃ -260 ℃.


Adhesive property of 3H with different base material


Material
Thickness（mm）
Adhesive Strength （N/25mm）
Aluminium
0.2
>80
Steel
1.0
>70
Lead
0.2
>70
Copper
0.2
>70







Usage method

Coextrusion coating.


Package, storage and transportation:

Packed in paper plastic composite bags, 25kg/bag.

Keep away from sun light, rain and wet.


Note: The technical data contained herein is believed to be reliable, but users should not rely upon it absolutely for specific applications because performance properties will vary with processing conditions. Users of BAICHEN products should make their own tests to determine the suitability of each such product for their particular purposes. Above is the typical experimental data, real and reliable. It is only used for reference, not as formal quality promise.


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