Hi Terry,
The system I use,
1 Re- Surface using Pacer diamonds.
2 Seal, protect and clean. Stone Soap.
3 Final polish and harden stone. Hulk powder.
4 Polish and maintain shine. Stone Glo.
I get these products from,
B I Crawshaw & Co
3 Silverwing Industrial Park
Horatius Way,
Croydon,
Surrey
CRO 4RU
TEL 020 8686 7997
There maybe other suppliers more local to you. With Stone Glo you do not need a Kleever machine or wire wool pads.
Hope this helps
Eric