“Heat treated” is the closest translation for the French name that literally translates to “heated” ash, but “smoked” would maybe be a better name, given the very strong smell, and kiln dried as Will mentions is probably the most accurate. It is apparently intended for outdoor use, e.g decks.
That’s very good point, and one I was concerned about back when I did this other epoxy trivet, but it has now been “in use” at my inlaws for a year and no report from damaging/melting it (though I think they tend to use other trivets for the boiling hot pans, or maybe they don’t use it at all and just pull it out of the drawer when we’re there! ). I honestly did not check the temperature limit for the specific epoxy brand I used, I hear basic epoxy is ok to about 150°C/300°F, while “heat resistant” epoxy used for kitchen countertops can take up to 315°C/600°F.