How do you color soapstone?
How do you paint soapstone countertops?
Can soapstone be refinished?
Soapstone is functional, durable and beautiful. Even after 100 years of hard use, soapstone can be refinished to a looks-like-it-was-just-installed state.
Over time, soapstone naturally darkens in color. However, some people opt to speed the darkening process along by using mineral oil. Other liquids other than mineral oil can darken the surface of soapstone — however, if you enjoy the natural look of scuffs and color variations, this shouldn't be a problem.
Over time with exposure to the elements and everyday things like food, liquids and your own hands, it will patina naturally and appear darker. But it will still remain grey and it's veining (if that appears in a particular slab) will remain white.
80 grit sandpaper is rough and will sand quite a bit of soapstone quickly. As the scratch is sanded out, you will want to graduate to a higher grit (220) or up to a 300 – 400 for a finish that will match the original grit finish. After sanding top off the repaired area with mineral oil or sealer.
I prefer to use chalk-style paint because it dries to a smooth, flat finish. Natural soapstone doesn't have a shiny surface, so it's best to avoid paints that leave a glossy finish. Cover the primed panel with an equally smooth and thorough application of flat black paint.
Countertop paint should work fine on textured laminate, though the texture will tend to show through. You may be able to remove some or all of the textured look by applying several coats of countertop primer or paint, sanding lightly with fine sandpaper between each coat to fill in the textured surface.