Availability: In Stock
Wet & Forget 4 Litre Mould, Moss, Algae & Lichen Remover
Brands: Wet & Forget
SKU: MI-WFOC4L
Say goodbye to stubborn mould, lichen, and algae on your outdoor surfaces with Wet & Forget. Designed for hassle-free application, Wet & Forget works over time to clean and protect your surfaces – no scrubbing, rinsing, or jet-washing required. Effortless Cleaning. Long-Lasting Results.
Wet & Forget has a unique combination of biodegradable selective surfactants for mould, lichen and algae removal on any exterior surface. When diluted with water and applied, it immediately attacks these unsightly contaminants.
Each time it rains our efficient cleansing combination reactivates to help flush away the mould, lichen and algae without scouring the surface it has infested. Wet & Forget is an effective way of removing these contaminants from any exterior surface exposed to rainfall. Once applied the wind and the rain will gently takes the decomposing material away bit by bit until the surface is clean.
- Non-caustic.
- Non-acidic.
- No bleach.
- No pressure washing.
- No elbow grease.
- 5L concentrate makes 30L of product. No special equipment is required just a good garden sprayer..
- Easy to maintain, reapply at the first sign of recontamination.
- UNLIMITED shelf life even when mixed with water.
How to Use
- Dilute 1 part Wet & Forget with 5 parts water.
- Apply with a garden sprayer on a dry surface.
- Leave it to work – no rinsing or scrubbing required!
Note: This is a guide only and strength may be increased if contamination is heavy. Please ensure you wear eye protection and rubber gloves when using this product.
Do not apply if rain is expected within 4-5 hours of using the product. Wet & Forget is best applied in overcast and dry conditions, to avoid evaporation. Keep away from treated surfaces until dry. Test spray a small area for colour change if spraying near dark powder coated aluminium & joinery.
Easy to Apply
- Just dilute, spray, and walk away. One 5L bottle covers up to 300m² and 2L up to 120m².
- Use our concentrated outdoor cleaner with a spray applicator for smaller surface areas and hard to reach surfaces. I
- deal for almost all external surfaces making it perfect as a patio cleaner, block paving cleaner, Indian sandstone cleaner, solar panel cleaner and driveway cleaner. Plus, so much more!
Surface Recommendations
- Astroturf
- Awnings
- Brick
- Cladding
- Concrete
- Conservatory roofs
- Caravans (protect any decals)
- Decking
- Driveways including block paving
- Head/Gravestones
- Indian sandstone
- Natural stone
- Outdoor furniture
- Paving
- Patios
- Plastic
- Rendered surfaces
- Roofs
- Sails
- Solar panels
- Wood

