The 5mm flake is fed direct from the granulator into the 50 tonne Engle injection mould machine. Melt temp 220. 4 cavity wedge tee mould and 8 cavity chipping tee.
We have found this feedstock to perform well in the injection mould machine with good cycle times. The hopper and feed throat need to be monitored as the flake has a rough edge and material flow into the barrel can be inconsistent.
With the 8 cavity chipping golf tee we used maleic anhydride at 4% to increase the impact strength of the golf tee.
The surface finish of the product differs from batch to batch with different sheen and black scales. The small flecks of paint are apparent but in my opinion add to the aesthetic appeal of the finished product and does not compromise the mechanical properties.