We have bought a ranch in Texas with a 1986 D-log home. It has weathered silver (stain is gone) on most of one side, and the other 3 are good to patchy. It also has some test areas of various odd stain colors. We are going to use SWms Woodscape solid stain and Energy Seal caulk. Which is first – stain or caulk? Do we remove the old caulk or caulk over it? We have not found a local cob blasting Co-not many log homes in this area. In lieu of blasting….what prep is essential. We’re doing