Rust-Oleum Mathys AMW Fungicidal Wash


We no longer stock this product, but can recommend Torkill W Fungicidal Solution as a great alternative.

Product not available
This Product has been Discontinued


We no longer stock this product, but can recommend Britannia Fungicidal Wash Solution as a great alternative.

Rust-Oleum Mathys AMW is a ready mixed fungicidal wash; a solution of an approved biocide in water (HSE Approval No 4246). Rust-Oleum Mathys AMW should be used as a masonry surface fungicidal wash for professional use against mould, fungi, moss, etc. Also suitable for treatment of similarly affected roof surfaces.

Features & Benefits

  • Effective algae, fungi and dirt remover
  • Cleans polluted roofs and surfaces effectively
  • Not hazardous for applicator
  • Does not harm glass or PVC
  • For bitumen, concrete, asphalt, wood and pre-painted substrates

Technical Data

Density: 1,01

Surface Preparation

All mould, fungi, lichens etc. should be given a saturated coat of AMW before their complete removal (to kill spores). Remove debris by power washing or use of a stiff brush. The whole area should then be given a second coat of AMW and allowed to dry (to render the substrate sterile).

Directions for Use

Apply Rust-Oleum 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. Affected by heavy rainfall for at least 4 hours after application. If doubtful re-apply. Ensure residues are substantially diluted with water before entering drains etc.


Tools: Brush or “coarse” spray such as a pneumatic garden spray. Do not dilute.

Application Conditions

Minimum 8°C and maximum 80% R.H

Please contact Rawlins Paints' Technical Support Team on 0113 2455450 for more information.

Product Details

Data sheet

Brush, Spray
5m² per litre
Max. Application Temperature
80% R.H.
Min. Application Temperature
0 g/l
Shelf Life (from date of manufacture)
5 years from date of production in unopened cans, if stored in dry, well ventilated areas, not in direct sunlight at temperatures between 5° and 35°C. Protect material from frost.
Touch Dry
12 Hours
UN Number

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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Rust-Oleum Mathys AMW Fungicidal Wash is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT