General indications for the assembly of thermoplastics

Cellulosics Good Fair to good Fair Good 

Soft PVC Fair Good Fair Fair to good 

Welding can be very simple or sophisticated allowing short or large runs  

Apart from ferromagnetic welding, to a certain extent, welding is generally unsuitable for assembling materials of different chemical natures. It is even advised to weld only those materials with physicochemical states that are as close as possible. The three main parameters influencing the quality are temperature, time and pressure. Particular care must be taken of cleanliness one should not hesitate to clean and even refresh by abrasion the surfaces to be welded. For old parts, it is necessary to remove the surface to reach uncorroded 

The thermoplastics to be welded can be directly melted and welded or one can use a rod of the same thermoplastic to make the joint. 

---