Cleaners, bleach and drain cleaners: safety data sheets
5 data sheets from the makers, one for each product, with what the hazard codes mean.
Bleach, degreasers, mould removers and drain cleaners. Some give off toxic gas if mixed: keep them in their own containers and never mix them.
Use the data sheet for the exact product you buy. A data sheet covers one maker's product, and two products that look the same can be classed differently. Makers update their sheets, so check the revision. Your supplier must give you the safety data sheet for a hazardous product: ask for it if it didn't come with the delivery. We link to the makers' own sheets; we don't copy or change them.
4 Trade Heavy Duty Degreaser
Mykal
Safety data sheet (PDF) Revision March 2012. Link checked September 2026.
- H304 May be fatal if swallowed and enters airways.
Domestos Professional Original bleach
Diversey
Safety data sheet (PDF) Revision August 2019. Link checked September 2026.
Danger
- H290 May be corrosive to metals.
- H314 Causes severe skin burns and eye damage.
- H318 Causes serious eye damage.
- H400 Very toxic to aquatic life.
- H410 Very toxic to aquatic life with long lasting effects.
- EUH031 Contact with acids liberates toxic gas.
Mr Muscle Drain Cleaner
Diversey
Safety data sheet (PDF) Revision February 2014. Link checked September 2026.
- H290 May be corrosive to metals.
- H314 Causes severe skin burns and eye damage.
One Shot Instant Drain Cleaner
One Shot
Safety data sheet (PDF) Revision August 2012. Link checked September 2026.
- H314 Causes severe skin burns and eye damage.
Wet & Forget Mould, Lichen and Algae Remover
Wet & Forget
Safety data sheet Revision November 2019. Link checked September 2026.
Warning
- H315 Causes skin irritation.
- H319 Causes serious eye irritation.
- H400 Very toxic to aquatic life.