About Rust-Oleum AMW Mould Removal Solution
AMW is a fungicidal wash; a solution of an approved biocide in water.
It is used as a masonry and roof surface fungicidal wash for professional use against mould, fungi, moss, etc.
HSE Approval No 4246.
All mould, fungi, lichens etc. should be given a saturated coat of AMW to kill spores.
Remove debris by power washing or with a stiff brush.
The whole area should then be given a second coat of AMW and allowed to dry (to render the substrate sterile).
Application and Thinning
Apply AMW abundantly, preferably by brush, and wait 12 hours.
Dry-brush and remove dust prior to painting, or clean with high-pressure water and let the surface dry.
If affected by heavy rainfall within 4 hours of application, re-apply.
Ensure residues are substantially diluted with water before entering drains etc.
Use a brush or “coarse” spray such as a pneumatic garden spray. Do not dilute.