Main > POLYMERS > Poly(MethylMethAcrylate) > Abbreviation: PMMA > > PMMA Sheets > Co.: USA. A. (Brand/Mfg./Patents) > Sheet Types; TradeMarks & Uses> > General Purpose Sheet (GPA) > E>Optical Clarity
Clear GPA sheet has clarity equal to or better than ordinary glass. GPA has approximately 93 percent light transmittance compared to 88 percent for ordinary glass of the same thickness
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