The Process Is Generally Used For manufacturing Large Small Hollow Articles. Most Of The Products Are Made From Lidpe/hdpe. Polythylene In Powder Form Is Poured Into A Sheet Metal Or Cast Aluminium Mould. The Mould Is Attached To The End Of An “arm” Powered By Motors That Slowly Rotate Or Spin It Biaxially In An Oven At 250-300 C, With The Charge Of Powder Inside The Mould. This Causes The PowderTo Gradually Melt And Sinter And Build Up A Layer Of Polymer On The Inner Walls Of The Mould. After The Entire Quantity Of Powder Is Consumed And Fully Melt-sintered, The Mould Is Allowed To Cool. This Causes The Polymer To Solidify And Shrink, Thereby De-attaching itself From The Mould Walls. The Moulded Article Article Can Then Be Easily Removed By Opening Themould.