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We tested post industrial waste (PP, MDPE and clean HDPE) and are very satisfied about the results. We also discovered new techniques, employing a die to overcome artefacts coming with shrinkage.
- flatness : within 1mm tolerances
- surface : impeccable, in particular for clean HDPE
- consistency : literally no air voids when using dies
10mm Sheets
This presents the more productive size. It takes ~45-60 minutes for heating and 3-4 hours cooling, requiring a mould of 15mm and a die of 5mm. Since less plastic needs to be penetrated, a moderate temperature can be used to retain texture properties as speckle like patterns.
20mm Sheets
~90-120 minutes for heating and 4-6 hours cooling, requiring a mould of 30mm and a die of 10mm.
30mm Sheets
~120-140 minutes for heating and 6-8 hours cooling, requiring a mould of 40mm and a die of 10mm. 30mm blocks enable access to wider applications such as mechanical and structural components.
40mm Sheets
Considerably more challanging and care taking neeed, ~140-160 minutes for heating and 6-8 hours cooling, requiring a mould of 55mm and a die of 15mm as well reheating the sheet during the die press stage near the melt point.
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