If its the blast away mould spray , it contains bleach.

Michael, thats if thats the product ,if its this **LINK**

then its basically bleach.

Michael,

Nice to see you posting again

Rod

Most mould killers are just dressed up bleach. I've read that it does not kill the mould, as you have said, but it bleaches the mould white so you can't see it. Eventually it grows back of course, then you buy some more of the wonderful mould "killer" and do it all again.

Here in the wet tropics (8 foot of rain a year) we have to get the outside of the house washed down with mould "killer" every couple of years and the bloke who does ours uses a mix of commercial bleach and household detergent. He tells me that's what they all use.

If you want to actually kill the mould the only thing I have heard of is called "Thieves Mixture" , a combination of clove oil, lemon oil, cinnamon, eucalyptus oil and rosemary oil. Never tried it though as the ingredients are too expensive large quantities.

Most of the Aussie home DIY sites recommend against using commercial products as they are mainly bleach-based and will not kill mould on porous surfaces. Best thing I've found is ordinary household vinegar. Mix in ratio of about 8 parts vinegar to 2 parts water and wash the affected area. It might need a little scrubbing. Repeat if necessary. Make sure you rinse your cleaning cloth in a separate bucket containing a weaker vinegar solution to prevent recontamination. If you want to neutralise the very mild residual acetic acid from the vinegar then you could wash afterwards with a weak bi-carb solution but I've not found that necessary on walls and ceilings.

Here is a link to a story which explains how vinegar works:

http://www.abc.net.au/local/stories/2011/02/25/3149028.htm

I'm sure if you searched the internet you would find many other sites endorsing the use of vinegar. Some people add essential oils to mask the vinegar smell but i found it dissipates naturally soon enough.

HTH

Benzalkonium chloride has been used as a surface active biocide for at least 45 years. IIRC It works against bacteria and fungi by disrupting the bonds in cell walls. It's also a pretty good detergent, which can be helpful in this use.

I saw a video somewhere on youtube, showing use of bleach to get rid of black mould on bath silicone sealant. Basically, it requires a long soak time, it is no good just wiping it on. I guess the mould takes a long time to grow, and goes deeper than just the top of the silicone, similarly it takes a while for the bleach to get in.

So I used toilet paper folded to make a small fillet on the silcone between the bath and tiles, soaked with a modest spray of bleach using a syringe (it only needs enough to get it reasonably wet) and pushed it place – WEAR GLOVES!

In 10 – 12 hours, my mouldy silicone was changed to almost pristine white – there were a couple of very minor spots which could be helped with a longer soak, but I was very pleased with the result! I had done a trial run on a few inches of sealant previously, just to check what would happen.

I don't know how long the silicone will stay white, but it is very good for now. Bleach used was 'real' bleach, Domestos brand in a blue bottle, this is a somewhat viscous formulation, so helpfully it does not immediately run away.

Look to find 5% sodiun hypochlorite in the ingredients, igore the ******** anionic surfactants!.

Hope this helps

Martin

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What a strange world we live in !

"only a consumer product without a MSDS." …

yet it has the word PROFESSIONAL proudly displayed on the bottle.

[ their capitalisation, not me shouting ]

MichaelG.

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Neil,

I'm getting a bit confused here … That's the same MSDS that I linked originally

… which was before you said that 'your' product didn't have one.

MichaelG.