| 摘要 |
A heating radiator element (1) having a body (2) made of die-cast aluminium and provided with an inner chamber (5) for passing the water, delimited by inner surfaces (6) of the aluminium body (2), is provided with a protective coating (51) made of an anti-corrosion polymeric coating material applied to every inner surface (6) of the aluminium body (2) so as to completely coat the chamber (5), for protecting in use the inner surfaces (6) of the aluminium body (2) against the contact with water. The application of the protective coating (51) is carried out by filling the chamber (5) with a treatment composition containing the polymeric coating material, and then draining the chamber (5) once the coating material has adhered to the inner surfaces (6) of the chamber (5). |
