Homax? Knockdown aerosol wall texture can also be used to apply this attractive decorative finish to an accent wall. Once applied, this heavy-bodied wall texture is knocked down using a drywall knife to achieve the finished look. Both professional contractors and DIYers can get the performance and results deserved with our popular aerosol texture products. Specially formulated for patching knockdown or "southwest style" drywall textures. Once applied, this premium-bodied texture is knocked down using a drywall knife to achieve the finished look. Can also be used to create decorative effects on accent walls or even texture an entire room.