溫莎牛頓水彩牛膽液75毫升WINSOR & NEWTON Ox Gall Liquid 75ml

功能：

．能增加水彩顏料的流動性，令顏色化開

．於吸水力較低/不易上色的紙上，可以先塗上稀釋牛膽液，以降低水的表面張力，令顏色更容易被吸入紙裡

．減慢水彩乾燥時間

 

使用方法：

．牛膽液可與水彩顏料直接混合

．亦可加3-4滴牛膽液到水杯混合，不要加太多，否則需時較長才會乾

 

Functions:

．Improve the flow of watercolour paints

．Used on very hard sized papers to reduce surface tension so that watercolours can be more easily absorbed into the paper

．Slow down the drying time of watercolours

 

How to use:

．Mix with watercolours directly

．Add 3-4 drops per cup of water. Do not add too much or it will take too long to dry.