[Ken Wainwright]

Quite often, in discussions on this board, we'll talk about Chemspec's Spray N Go or it's generic version of Sodium Metabisulphite. When my colleague was buying some Sodium Met. a couple of years ago, he had prices quoted from specialist chemical suppliers as high as £120 plus for a 25kg bag. In the end he paid about £25inc. V.A.T. and delivery. Chemspec have a list price for Spray N Go refil 0.9kg of £22.61 inc. V.A.T.  I've just bought a 25kg bag for £14 inc V.A.T. collected, from a local wholesaler to the "Home Brew" trade. By the time me and a few colleagues have shared it out we'll soon use it all up. I'll do some numbers for you. The same amount as in a Spray N Go tub has cost me 5p.

Safe and happy cleaning:)
Ken

[Mark Betts]

Ken
Remind me.

What is it used for and I take it its in powder form.

How much Metabisulphite do u add to say a litre of water>

Thanks


Mark

[Ken Wainwright]

It's a reducing agent used for coffee and coloured stain removal. High% results. Could be damaging (quite rare) so use with caution and rinse. I mix about 50ml of powder to 600ml of boiling water. It clears your sinus's so gloves, goggles and mask. Read up on Chemspec Spray N Go for further information about it's use. It's always recommended to use fresh and hot, but I've still had results cold after a week in the van.

Safe and happy cleaning:)
Ken

[Mark Betts]

Ken

Just been reading the specs of Alltecs Coffe and stain REMOVER and that is metabisulphate.

They also do a Coffee and Tea stain REDUCER which is Sodium Hydrosulphate. Would the reducer/hydrosulphate be more aggressive and risky then?

Its funny i was using the Coffee and stain remover last week and the smell was very very familiar and i just souldnt quite put my finger on it.

I have just now done a search on cleantalk and an old post of Glynns popped up and amonst it he mentions it is also used as a Fixer in photographic processing. Now thats where i have smelt it before!!!   lol

Cheers

Mark

[woodman]

Caution:

When using Sodium Metabisulphite if you or your customer suffer from Asthma, inhaltion can bring on a sudden and immediate attack.

This is why companies sell the RTU solution so you can't cause harm to your customer or your self  

[Ken Wainwright]

I totally agree with "Woody" re the H&S issues with this product, hence my reference to PPE in my earlier post. We should also be familiar with labels and SDS's.

Sodium Metabisulphite is a mild reducing bleach. Sodium Hydrosulphite is a strong, last resort, reducing bleach. Heat is a key element with these products. Cold they'll work, but heat is a powerful catalyst.

Safe and happy cleaning:)
Ken