Mr Hobby (Gunze) T111 Aqueous Thinner 400ml

This is a thinner for water-based hobby colors.

If it is difficult to apply with a brush, add a small amount of thinner.
For airbrush painting, dilute the paint with a maximum ratio of 1 part thinner to 1 part paint (1:1). This makes it easier to apply as it dries faster than when diluted with water and reduces the repelling phenomenon caused by water. It can also be used to clean tools used with water-based hobby colors, but if it has completely dried and is difficult to remove, use Mr. Tool Cleaner Kai. 

Note:

This product cannot be used to restore the viscosity of any product that has become too high or completely hardened in the bottle.