This technique involves placing a measured amount of thermoplastic resin inside a metal part, sealing it, and heating the assembly in an oven while rotating it on multiple axes. The heat melts the polymer, allowing it to coat the interior walls evenly. Once cooled, the plastic forms a thick, bonded liner that protects the metal from corrosive chemicals or abrasive materials. It is heavily used for chemical storage tanks, pipes, and complex hollow structures where spray coatings would fail to reach.
We need to send the new reactor vessel out for rotolining before we can safely store the acid mix.
The thickness of a rotolined coating is controlled by the amount of resin added before heating, meaning operators must weigh the charge precisely to avoid thin spots or material waste.
Also heard as
- rotational lining