Stiff Black Opal Frit (101)
Stiff Black 101 is more viscous or dense than Black 100, so use this when differences in viscosity could be an issue. For example, use 101 when firing with a viscous Opaque White 013.
Stiff Black 101 is more viscous or dense than Black 100, so use this when differences in viscosity could be an issue. For example, use 101 when firing with a viscous Opaque White 013.
