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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.
+ Add to a job's COSHH folder PRO

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.
+ Add to a job's COSHH folder PRO

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.
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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.
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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.
+ Add to a job's COSHH folder PRO

From HSE

A COSHH folder for every job, in SiteHelm PRO

The data sheets are free, here and in SiteHelm. SiteHelm PRO adds the job's COSHH folder: press + on any data sheet to add it to the job, and the folder keeps every product used there, with its hazard codes at a glance and the maker's sheet a click away. Add your own products too, and print the folder or put it with your RAMS and toolbox talks.

The first 100 get a free 1-year licence.

Other folders

All COSHH data sheets

The construction manager’s toolbox.

Measure from a drawing, Easy CAD, Edit PDF and Weather are free for good in your browser. Take-off, RAMS, the job's COSHH folder, quotes, invoices and 40+ more tools come with SiteHelm PRO.