janette Posted November 13, 2022 Share Posted November 13, 2022 Hello, we’re looking at a slate call Madog, but I can’t find any info on the country or quarry of origin. Has anyone looked at it or used it please? No pyrites and 100yr guarantee seems too good to be true for the price. Link to comment Share on other sites More sharing options...
nod Posted November 14, 2022 Share Posted November 14, 2022 Sounds like a name that a seller has attached Lots of slate have 70-100 year piro guarantee An A grade for piro doesn’t always give you a good slate We used a slate with virtually no piro but required a lot of grading This time we narrowed it down to Estillo prime and Sumo Both flat and low in piro Link to comment Share on other sites More sharing options...
SteamyTea Posted November 14, 2022 Share Posted November 14, 2022 Porthmadog is a place in Wales. Better known as Porthmadoc. Used to do slate. Link to comment Share on other sites More sharing options...
joe90 Posted November 14, 2022 Share Posted November 14, 2022 Porthmadoc is the port the slate was shipped from after coming down the narrow gauge railway (which is now a tourist route) from the Llechwed slate mines near Blaenau Ffestiniog. Link to comment Share on other sites More sharing options...
janette Posted November 19, 2022 Author Share Posted November 19, 2022 Turned out to Chinese ☹️ Link to comment Share on other sites More sharing options...
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