[1] It is also used in other contexts where an impression similar to a dental impression is needed, such as in audiology (to take ear impressions for fitting custom hearing protection or hearing aids[2]) or in industrial applications (such as to aid in the inspection of interior features of machined parts, for example, internal grooves inside bores).
PVS with a wide variety of working and setting times is available commercially.
[3] Final set is noted when the product rebounds upon touching with a blunt or sharp instrument.
This reaction also gives off hydrogen gas and it is therefore advisable to wait up to an hour before pouring the ensuing cast.
[4][5] In dentistry, this material is commonly referred to as having light or heavy body depending on specific usage.