Kontrastol gives the touchstone again the desired deep black appearance.
Application: First clean the touchstone under running water and rinse it, then dry it.
Now the contrast oil is applied with a cloth on the stone and rub vigorously.
Kontrastol gives the touchstone again the desired deep black appearance.
Application: First clean the touchstone under running water and rinse it, then dry it.
Now the contrast oil is applied with a cloth on the stone and rub vigorously.