Does the hardness of strontium aluminates pose any risks to machinery?
Yes. When mixing our strontium aluminate pigments into polycarbonate, keep in mind that the granules are very hard, so the client will need to use a lubricant in his plastic processing equipment (extruders and moulders, etc.) otherwise he’ll (a) purge all the muck stuck to the insides, then (b) start abrading the steel linings. Either way the nice clean extrudate will turn dirty grey after about two minutes running. A typical lubricant is micronised wax, but every plastics processor has his own favorite that he knows works in his equipment.
