Slow rust blueing

[Morningstar]

Hi fellow tinkerers and anoraks
I fancy having a go at Slow rust blueing on a couple of rifles! please don't suggest birchwood casey or any of the micky mouse one touch jobs that rub off.
I know Brownells do Oxpho but I can't find a stockist in this country

http://www.brownells.com/aspx/ns/sto...le=OXPHO-BLUE~

I have found this stuff though `Gunguard Slow Blue Solution' at

http://www.blackleyandson.com

Not a Good company to deal with I have discovered, put an order through a week ago , paid visa debit- No invoice recieved- phoned 3 time today- no answer- engaged- no answer- no replies to 2emails asking for comfirmation of order- cancelled order I would not recommend them folks they seem very Micky Mouse

So folks , who has tried doing it and what results did you get?

Any pointers most welcome

ATB graham