The anti black spots, discoloration and general anti plastic degradation effect of the Lunac 1 coating is especially notably in extrusion parts. In the case of extrusion dies, the anti-melt fracture effect and/or die lines elimination effect is remarkable. The characteristic non stick, chemical inertness and melt flow facilitating property of the Lunac 1 coating can and should come to full functionalityin the whole line following the plasticizing and extrusion screws. The anti melt fracture effect is mainly caused by the very smooth flawless surface (no micro cracks or inhomogeneous surface structures) and the special attention we pay to die lip end zone (die lip buildup). Besides the low coefficient of adhesion the special high bond feature of Lunac 1 provides the possibility to establishing very sharp edges. These sharp edges in transition zones have proved to reduce plastic degradation significantly as well. The cleaning interval of Lunac 1 coated parts is normally extended by 3-fold compared to current situations. The removal of possible deposits is significantly facilitated on a Lunac 1 coating and can be performed by using medium hard tools or a polishing agent (not hard abrasives!).
PUR processing line with high sensitivity for PUR degradation (product dis-
coloration and molecular deterioration). Only meti-
culously (!) Lunac 1 coated adaptor and screen filter elements (part in front) were able to undo these problems completely.
Good melt flow is most supported by the least interrupted surfaces with lowest roughness and maximum inertness. Lunac 1 can be polished down to Ra< 0.01 µm in a staggering short time because of the special material characteristics.
Nozzle inner bores down to 3 mm / .118" or 0.8 mm
/ .031" over a very small distance can be plated.
In this adaptor a plastic degradation track has graphically been added to represent the affect of surface irregularities. Steel is not always homogenous or can suffer from plastic degradation products penetration (4th picture). Research revealed this is another important cause for die line, edge drooling, burned particles production, discolorations etc. The Lunac 1 coating is very effective in reducing or preventing these problems due to the uninterrupted inert surface.
