Possible improvements with Lunac 1 coated screws and screw tips
The effects of a 40 µm (1.6mil) non-stick Lunac 1 coating on injection and extrusion screws are very interesting. The anti-black specks effects (see figure on the Lunac 1 page) with especially polar plastics (such as PET and PC) are until now almost unparalleled. Moreover the micro-crack free, corrosion resistant Lunac 1 is one of the very few coatings that is durably able to withstand corrosive plastics such as ABS, PVC or even most fluoroplastics such as pfa. In this way non-corrosion resistant high-tensile steel can be applied again. This is accompanied with a long lasting non stick effect and therefore melt flow / melt conveying improvement. |
Lunac 1 can significantly slow down plastic from degrading and almost always facilitates the screw cleaning remarkably if still necessary. These effects are observed in +/- 85% of all problem cases. There are some important points of interest before a screw can be coated successfully. Please check out our report on the application of Lunac coatings in plastic processing machines and/or contact our technical staff. The feed back we received dealing with Lunac applications in plastic processing machines during more than ten years are bundled in a report on non stick and corrosion resistance experiences of Lunac coatings . |
Various Lunac 1 coated screw parts. The 45-60 µm Lunac 1 coating is in contrast
with hard chromium very well capable to be
distributed in the deep structures as well.
In this way the coating offers high long lasting corrosion resistance.
