Polyethylene is the most widely used plastic worldwide. Within the world of plastics polyethylene belongs to the family of thermoplastics. This means when polyethylene is heated it is pliable and formable. After cooling it takes back solid form. This feature makes it a very useful plastic. This is also the reason polyethylene or PE is commonly used for all sorts of plastic manufacturing including plastic welding.
The advantage of polyethylene
There are many reasons why PE is the most common plastic. A few are:
Not all plastic product can be cast. Either the number of products is to small or the construction requires welded connections. Because PE a thermoplastic it can be welded perfectly.
PE is strong and tough. For many products this is a crucial property. high density PE (HDPE) is stronger than low density PE (LDPE).
One of the key features and benefits of polyethylene is that it is resistant to all kinds of chemicals; acids, bases and solvents.
Low electrical conductivity
PE is a good electrical isulator.
Relatively low stiffness
Polyethylene is more flexible than PVC and other plastics.