[M.Acorn]

Had an old coffee stain to deal with this morning,about the size of a dinner plate,gave it a liberal dose of coffee stain remover,and left it for 15 mins while I set up.
Rinsed it out,with little or no noticeable difference.
I then tried hy perox at 17.5% was ready with my hand tool ,didn't make much impact either.
So as a last resort I mixed up a very strong mix of pre spray gold,as I know this stuff bleaches when mixed too strong,sprayed onto stain,and the results were much better,almost straight away,gave it a really good rinse out,was still noticeable but no where near as bad

[John Kelly]

Hydrogen peroxide only works well if it is force dried with heat.

[Graeme@Access]

or mixed with an alkaline solution like psg

Graeme
Access Cleaning Solutions

[Jamie Pearson]

Which coffee stain remover did you use?

[Nick Attwood]

Had an old coffee stain to deal with this morning,about the size of a dinner plate,gave it a liberal dose of coffee stain remover,and left it for 15 mins while I set up.
Rinsed it out,with little or no noticeable difference.
I then tried hy perox at 17.5% was ready with my hand tool ,didn't make much impact either.
So as a last resort I mixed up a very strong mix of pre spray gold,as I know this stuff bleaches when mixed too strong,sprayed onto stain,and the results were much better,almost straight away,gave it a really good rinse out,was still noticeable but no where near as bad

Who produces pre spay gold

[Jamie Pearson]

Prochem

http://www.prochem.co.uk/safety%20data%20sheets/sdsb107.pdf

[M.Acorn]

Prochem coffee stain remover,it was an old stain,and it didn't touch it

[MAX Carpets]

Pre spray gold is brilliant in red wine stains as well?

[Simon@arenaclean]

What dilution rate are you using PSG at to remove stains like that? It's normally 30ml per litre.

Cheers

[M.Acorn]

Used a small sprayer,with 50ml in prob 100ml of water.
Stain was still viable,it was just a bit lighter

[Simon@arenaclean]

Thanks Mark.