Tombow Brush Pen

Should the Dual Brush Pens be stored vertically or horizontally Our Dual Brush Pens can be stored both horizontally and vertically. However, we recommend storing them horizontally to conserve consistent ink color over time. In what temperature range can the Dual Brush Pens be stored to maintain the best quality The minimum storage temperature for the Dual Brush Pens is 40 F, and the maximum is 104 Do the Dual Brush Pens contain xylene or lignin No, to both. Are the Dual Brush Pens light fast No. Open faced artwork can fade over time if exposed to direct sunlight. The effect is less for illustrations done inside a book, or paintings that are hung away from windows and protected by UV glass. Any suggestions to better preserve artwork or paintings done with the markers Many artists have mentioned that Lascaux and Mod Podge have worked very well for preservation; however, we have never tested them. What is the best paper to use with the Dual Brush Pens We recommend using smooth surface art papers to achieve the best results with the Dual Brush Pens. Can I use the Dual Brush Pens on regular copy paperTo achieve the best results with the Dual Brush Pens, we do not recommend using them on regular copy paper.