The picture shows two PVC profiles welded together to form a corner. The welding operation can be carried out with several different types of welding, depending on the material type, welding requirements, etc.
Where the following is required:
A continuous unit for easier fitting
A tight joint – both sides and corners must also be tight
Hygiene – to prevent dirt, mud or bacteria from getting into a welded frame
Attractive joints – the welding tool is fitted with a knife to make the joint virtually invisible
Flexibility – easy to change to a different frame size
Not all types of profile are suitable for welding.