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Glass Fibre hardness too low
Problembeschreibung
Glass Fibre product Shore hardness 5-10 degrees lower than target, feels soft
Ursachenanalyse
Glass Fibre soft nature, hardness low; plasticizer or softener added too much; crystallinity too low
Lösung
1) Add rigid filler 5-10wt% to raise hardness; 2) reduce plasticizer dosage; 3) raise cooling rate to increase crystallinity
Wichtigste Erkenntnis
Low hardness is caused by material softness and excessive plasticization; adding filler is key
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