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Thoroseal is really not a DIY products although it has been used for commercial and induatrial and restoration for decades but they usually do not guarantee it as a "waterproofer" (like other products do) althought it has been used for decades for that purpose. I first used it on a dam restoration about 40 years ago. It is not a paint-like material and it is cement based.
The materials in Thoroseal are cementitious just as mortar that is used from block brick and clay tile for construction, so it is compatible.
Since you apparently will be excavating to expose the buried wall, why not also put in perforated drain tile before backfilling? The Thoroseal application is sloppiy to work with and the proper mixing can be a time problem. The good thing is that it is suggested to mist the wall prior to the application to make the spreading of the "pancake batter" material easier and get a better bond.
Dick
Dick
The materials in Thoroseal are cementitious just as mortar that is used from block brick and clay tile for construction, so it is compatible.
Since you apparently will be excavating to expose the buried wall, why not also put in perforated drain tile before backfilling? The Thoroseal application is sloppiy to work with and the proper mixing can be a time problem. The good thing is that it is suggested to mist the wall prior to the application to make the spreading of the "pancake batter" material easier and get a better bond.
Dick
Dick