We sell several different types of exterior clear protective coatings, each for different purposes.
The surface you are applying it to and the sheen level, durability and water repellency you are requiring, will determine which is the most appropriate one for your purpose.
ROCKCOTE Repel is ideal on natural renders and paints because it maintains the breathability of the wall. It makes walls more water repellent whilst changing the look of the surface very little. ROCKCOTE Clearcote is a hard wearing, very clear acrylic film that is water resistant and long lasting. Ideal over acrylic coatings and surfaces where extra serviceability is required.
MUROBOND Mineral Silicate Clear is a clear surface coating, ideal for strengthening and consolidating chalky or flaking masonry.