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Why must a heat stabilizer be added to PVC during processing?
ARaw PVC is a poor electrical insulator
BRaw PVC has very poor heat stability
CRaw PVC is too dense to mould
DRaw PVC reacts with plasticizers
Answer & Solution
Correct answer: B. Raw PVC has very poor heat stability
Without stabilizer, raw PVC degrades when heated, so one is needed to keep its properties.
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