The production process of extruded Polystyrene insulation boards begin as a solid granule. The granules are fed into an extruder where they are heated at very high temperatures until molten. Critical additives are mixed with the viscous fluid that is formed. Then, a blowing agent is injected to make the mixture that is foam able. Under carefully controlled temperature and pressure conditions, the foamable mixture is forced through a die, at which the forming and shaping occurs. The rigid foam is then trimmed to the final product dimensions. The polystyrene sheets are then packed and stacked on wooden pallets for easy handling and loading. The cut pieces are further trimmed into slices and granules, which are regrinding and reused with virgin polystyrene granulate making this as zero wastage there by a complete green project.
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