- Best for
- Older CBS and plaster exteriors where long-term breathability matters most.
- Tradeoff
- Fewer color and sheen options than acrylic or elastomeric systems, and application requires an experienced crew.
- Durability & upkeep
- Highly breathable and resistant to mildew growth, since it bonds mineralogically with masonry rather than sitting as a film.
- What drives the cost
- Product cost and the specialized application method more than the coverage itself.
- Choose it when
- The wall needs to release moisture from within rather than seal it in, especially on older, moisture-prone masonry.