Use with acrylic colours. Blend about 1.5 parts volume to medium to 1 part Acrylic colour to make an ink. 
			
 
			
Roll out on a suitable glass or metal plate. If necessary, leave for a minute or two to become suitably tacky. 
			
 
			
With the roller transfer the ink on to the block.
			
 
			
The temperature and humidity in your studio will affect the drying time of the ink.