Description
Sandtex Fungicidal Wash is a clear, water-based, ready-to-use surface biocide designed to kill and treat mould, algae, lichen, and fungal growth on exterior masonry, brickwork, render, stone, and paths before painting. It sterilizes surfaces to prevent future growth and ensure strong paint adhesion.
Key Features
- Purpose: Kills mould, algae, and fungal spores
- Use: Exterior walls, paths, patios, and masonry
- Application: Brush or roller
- Drying time: About 24 hours
- Finish: Clear, water-based formula.
If you’d like, I can provide:
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- Step-by-step application instructions for painting over treated walls
- Details on surface preparation for damp or chalky masonry
Let me know how you want to proceed.




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