by plumbbob »
Sun Oct 07, 2012 9:32 pm
Caulk is a flexible filler which when dry should be painted to match the surrounding décor. Silicone is a "rubberised" sealant that is waterproof when dry and cannot be painted. For floor edges it is better to use silicone because the floor can be washed without damaging the sealant. The downside is, when you next paint the skirting, it won't cover wherever the silicone is.
Caulk although flexible, is far less so than silicone.