plexiglass vs Plexiglas

plexiglass and Plexiglas both are nouns.

Word	Noun	Adjective	Verb	Adverb
plexiglass	Yes	No	No	No
Plexiglas	Yes	No	No	No

As nouns, plexiglass and Plexiglas are synonyms defined as:

plexiglass and Plexiglas: a light transparent weather resistant thermoplastic

plexiglass (noun)	Plexiglas (noun)
a light transparent weather resistant thermoplastic	a light transparent weather resistant thermoplastic