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SUPERNOVA CHEMICAL PURGING COMPOUND
Supernova is the state-of-the-art, high-performance, odourless chemical cleaning compound for all thermoplastic process equipment available in concentrate or ready-to-use form.
Supernova grades are suited for a wide range of processing temperature conditions. It effectively removes residues of thermally degraded polymer from the screw and cylinder wall.
Many processors around the globe are improving their productivity by using Supernova for colour and material changeovers.
The material can be used in injection moulding, blow-moulding and extrusion and is absolutely odour-free, both before and during use so no special ventilation requirements are applicable.
The Problem
Time and material consuming colour and material changes are caused by contamination of the cylinder wall, screw, and - where applicable - the die or hot runner tools.
This contamination consists of carbonised residue of previously processed polymers.
Ever shorter production runs (per colour or per material) results in a growing number of changeovers. As a consequence, the problem of cleaning becomes increasingly more important and costly.
The Analysis
All plastics will deteriorate, some faster than others, some stickier than others. The short term effect is a brown gel. On the medium term, a darkening layer will deposit and on the long term a charred, fully carbonised layer will develop on the screw and cylinder.
The Solution
With regular preventive cleaning - preferably after each run - carbonised residues in the form of black specks do not get the opportunity to develop. This virtually eliminates the carbonisation of the material, making the infamous black specks a thing of the past.
The Effects
Fast and easy cleaning using a small amount of Supernova means:
- much faster changeovers - reduced material loss
- increased productivity - less time lost (man and machine hours) and less rejects
- better productivity of your machinery
How It Works
When introduced to the system, the cleaning compound causes a series of chemical reactions. This odour-free chemical process removes the thermoplastic residues from the cylinder wall and screw (including those difficult-to-get-at corners). These residues are then removed fast and easily by the gently polishing and purging components of Supernova.
Supernova is non-abrasive and will not damage aluminium, copper and steel finishes.
During the process only very small quantities of carbon dioxide and water vapour are released.
All the ingredients of Supernova are classified as "GRAS" (Generally Recognised as Safe) by the FDA and they have no potential for harming the environment before, during or after use.
After Supernova has done its work all that is left is a residual material of a polymer filled with inert minerals. This can be disposed of as plastic waste or alternatively recycled as a mineral-filled plastic.
The Supernova pellets are handled just like production material; making feeding of systems, manually or automatically a very simple, clean and dust-free operation, not requiring complicated manipulation with liquids.
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