Can you replace the colors when they are used up?

Yes, we are working on providing a replaceable ink to our beloved customer. This product might be available on May 2019. Thus, this set is completely reusable and friendly to environment. Stay tune everyone! Subscribes to our website to be notified.

What is the sponge for?

Sponge can be used to wet paper in preparation for washes or to remove water when you're preparing paper to be stretched. Also, when using Smart brush pen, sponge is a good accessory to control excess water and to clean the brush.

How do you put water in brush?

You unscrew the top. Fill the pen with water. Recap. The cap screws/unscrew the opposite direction. 

Is there a colorist besides numbers for each pallet?

Set doesn't include a color list, but there is a picture on the product listing page with color names, you can refer to it a couple of times. 

Do you need more than one brush? How do you use different colors with one brush?

You can use just one water brush that comes with the set. It's really easy to use different colors with this brush as you don't need a separate container of water to do so, that's perfect for sketching on location! When you need to change the color, clean your water brush by squeezing water through the chamber while wiping off the brush tip on the detachable sponge until the water comes out clear, then use another color.

Do you know if the watercolor are "Artist" grade or student grade?

These watercolors are primarily targeted for the students, but they also work well for the artists. The paints have high pigment concentration, dry quickly and the colors remain vivid.

Are these watercolors good for layering?

Most colors in the set are great for glazing and layering as they are completely transparent, only the yellowish colors are slightly more opaque. The paint doesn't have any fillers, binders or chalky finish when the paint dries.