Thompson's One Coat Water Seal uses a unique micro silicone emulsion to stop water penetration. Apply just one coat of Water Seal directly onto damp surfaces to provide long lasting waterproof protection within hours.
Prep
Give the surface a decent scrub with a stiff bristle brush. Fill any cracks and do pointing repairs, if needed.
Application
Give the tin a good shake. Apply using a brush or roller. If you're tackling a wall, work in 1m sections from the bottom upwards. Once an area is fully saturated move onto the next section. Don't forget to give those mortar lines a soaking too. Make sure you treat the whole wall and not just isolated areas.
It's just one coat, so that's it job done!
Clean Up
Clean your equipment in warm water and detergent.