Water-based pigment ink works great on permanent inks as well as water colors. Fine liner brush is perfect for finishing highlights and effects.
Opaque White works great on permanent inks as well as watercolors, and can be thinned with water to make it more transparent.
Do NOT colour over the Opaque White with your Copic markers (or any markers) as it will ruin the nib! The white pigment from used in the Opaque White will get into the fibres of the nib and clog it. Only add the Opaque White after you are completely finished colouring, this is the final step.
Your Copic Opaque White can be thinned with water, do not add the water direct to the bottle or jar, instead place a small amount of the Opaque White onto a non-porous surface and add a little water until you reach the desired consistency. The more water you add the more you diluted the pigment, so the LESS opaque the paint will be.
Do not try to use the Opaque White to correct colouring mistakes - as you cannot colour over this product. Apart from the fact that it will ruin your nib, it also absorbs ink differently than the surrounding paper, so will look patchy and awful!
Copic Opaque White is lightfast, acid-free and completely opaque on all surfaces (when undiluted)
The fine tip applicator brush produces fine crisp lines, much finer than possible when using a paint pen and is great for creating tiny or detailed lines.
Because you need so little product the one small jar or pot of Copic Opaque White will last a very long time.
Clean up is simple - as warm water is all you will need!