What is Drywall?
'''Drywall''' is a panel made of [[gypsum]] with or without additives. It is also known as '''plasterboard''', '''wallboard''', '''sheet rock''', '''gypsum board''', '''buster board''', '''custard board''', or '''gypsum panel'''. It is usually extruded between thick sheets of facer and backer [[paper]]. It is used in the [[construction]] of [[Wall|walls]] and [[Ceiling|ceilings]] that are inside a [[building]].<ref>{{Cite web|title=Definition of PLASTERBOARD|url=https://www.merriam-webster.com/dictionary/plasterboard|access-date=2020-10-23|website=www.merriam-webster.com|language=en}}</ref> == Manufacture == Drywall is made up of a layer of gypsum plaster [[Sandwich|sandwiched]] between two layers of paper. The plaster is mixed with [[fibre]], [[plasticizer]], [[foaming agent]], finely ground gypsum [[crystal]] as an accelerator, [[EDTA]], [[starch]] or other [[chelate]] as a [[retarder]]. Various additives may be added to decrease [[mildew]] and increase [[fire resistance]]. == References == {{Reflist}} {{Technology-stub}} [[Category:Building materials]]