A2 is polyethylene grafted with maleic anhydride, which is a kind of adhesive polyethylene resin especial for galvanized steel pipe lined polyethylene composite pipes. It 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 metal such as Aluminum, steel, lead, etc.

The polarity of A2 is high, and the adhesive force is strong when it is used on lined plastic pipes.The initial bonding temperature is moderate when used, especially for high-frequency and medium-frequency composite processes.

Typical Property Data of A2

Performance	ASTM method	Unit	Index
Appearance	Visual Examination		White or light yellow equal pellets
Density	D-1505	g/cm3	0.935±0.1
Melt Flow Rate	D-1238	g/10min	3.6±1.5
Vicat Softening Point	D-1525	℃	>93
Melt point		℃	128

Application

The recommended extrusion temperature of A2 is: 180 ℃, 180 ℃, 180 ℃, die 180 ℃.When it is used in lined plastic pipes, it is suitable for high frequency technology.

Adhesive property of A2 with different base material

Material	Thickness（mm）	Adhesive Strength （N/25mm）
Aluminium	0.2	>150
Steel	1.0	>130
Lead	0.2	>100
Copper	0.2	>80

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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