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PGA is generally the superior dissolvable material for downhole tools compared with dissolvable metals (typically Mg‑based alloys) because it offers more predictable dissolution, higher initial mechanical stability, and cleaner wellbore cleanup, supported by recent engineering studies. PGA degrades by hydrolysis, which is governed mainly by temperature and water availability, giving operators a highly tunable dissolution window. PGA components can reach 50% weight loss in ~2.