Hot Melt Adhesive for AL/PE Composite Pipe(BC-2B)

Characteristic

BC-2B is polyethylene grafted with maleic anhydride, it is a kind of adhesive polyethylene resin especial for AL/PE(PEX) composite pipe (overlapped welded),which is usually used as outer adhesive. BC-2B 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, etc.


                                   Typical Property Data of BC-2B


Performance
Index
Method
Appearance
White equal pellets
Visual Examination
Black spots
≤40%
Visual Examination
Melt Flow Rate
(g/10min，190℃)
2～5
GB/T3682
Density（g/cm3）
>0.935
GB/T1033
Vicat Softening Point（℃）
>108
GB/T1633
Melt point（℃）
130
GB/T4608



Application

BC-2B is the hot-melt adhesive especial for AL/PE(PEX) composite pipe (overlapped welded) and is suitable for coextrusion or coating process. Suggested extrusion temperature from feeding zone to die: 170℃, 190℃, 210℃, 230℃,250℃.

                     Adhesive property of BC-2B with different base material


Material
Thickness（mm）
Adhesive Strength （N/25mm）
Method
Aluminium
0.2
>80
GB/T2791
Steel
1.0
>70
GB/T2791


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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