I would think it should be sealed with something. As a test, lick the slate and see if you get a mineral or dirt taste. If so, this could transfer to the cheese. I wonder if mineral oil applied and buffed off might not seal it well enough. You can mix varnish and lacquer thinner 50/50 and rub it on. This penetrates more and does not leave as much of a surface of varnish.
Slate is natural.
You can get special varnish/sealer for it at tile stores.
Slate is a natural product found in the ground. A type of rock.
Maintaining a slate roof is very important to avoid your roof from getting damaged. To maintain the natural slate roofing can be beautiful, it can be extremely heavy and expensive. CertainTeed manufactures various roofing shingles to replicate the look of natural slate roofing.
Not over the varnish, no. You have to sand the varnish completely off and then apply the stain. I highly recommend that you hire a pro hardwood contractor, because that is my profession, and I have seen many floors that a homeowner tried to sand themselves and ruined. The sanders that we use are powerful, and if you don't know how to operate them properly, you will do damage to your wood floors.
The most common roofing slates is Welsh slate. This type of slate has been used for many years and is very common around many houses in the UK. Slate is very common due to how well it reacts to weather conditions.
Welsh lamb
When slate is heated, it expands due to the thermal energy causing the mineral grains to separate. This expansion can lead to cracks or breakage in the slate. Additionally, heating slate can alter its mineral composition and structure, affecting its physical and chemical properties.
North Wales, specifically the area around Snowdonia and the town of Blaenau Ffestiniog, is known for its slate industry. The region has a long history of slate quarrying and production, with slate being an important natural resource and export for Wales.
Choosing a natural slate floor for your home offers several benefits. It is durable, long-lasting, and resistant to scratches and stains. Natural slate also provides a unique and elegant look to your home, adding value and aesthetic appeal. Additionally, it is easy to maintain and clean, making it a practical choice for high-traffic areas.
Slate is a dark gray color that resembles the color of natural slate rock. It can have a slightly bluish or greenish tint, and is often described as being a cool, neutral color.
That people should be born with a clean slate.