Spectar Clear Copolyester Eastman Chemical Company Copolyester Eastman Spectar Clear is a copolyester, developed by Eastman to achieve measurably improved sheet clarity and edge color while maintaining the performance characteristics for which Eastman Spectar copolyester has become known in the industry. It offers the thermoformability and ease of fabrication of Eastman Spectar copolyester along with significantly improved clarity. Eastman Spectar Clear also offers approximately double the notch impact strength, 50% higher instrumented impact strength and better chemical resistance when compared to traditional Spectar Copolyester

PETG,PCTG,PCTA都屬于是一種非結晶型共聚聚酯的高透明塑料.PETG塑料制成的板材通常比通用壓克力堅韌15至20倍，比抗沖改性的壓克力堅韌5至10倍。PETG具有玻璃一樣的透明度和接近玻璃的密度，很好的光澤度，耐化學腐蝕，耐沖擊可制成復雜外形容器的包裝，具有高吸塑力，高光澤，低霧度，易于印刷，不易脫落

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