Acoustiblok is typically applied as part of layered wall, ceiling or floor construction. It is usually stapled to wood studs or screwed to metal studs prior to drywall.
Acoustifence is a thin 1/8 inch thick revolutionary sound deadening material hung via grommets to a fence.
Thermablok is installed directly to the edges pf studs in the wall framing, before the installation of drywall. It has a peel and stick backing for quick and easy installation and is easily cut to size.