Wow.. how interesting! I was surprised at some of the changes. This kind of database is extremely important for those of us who are just starting out using Gouasche. I noticed a couple of the colors that faded are in my personal collection, but I don’t use gouache as often as I use watercolor, but then again we run into the same fading problem with some of the pigments there as well. Thank you for taking the time to do such an extensive study ..and putting it into a database that’s available to everyone. God bless you as you continue your artistic journey and share it with all of us.

No surprise on the Himi's. I have some but they're just for fun or sketchbook or maybe if something turns out really great, I'll scan it for prints.

I’m sure I’m not the only artist on here currently sighing in relief that all the paint I bought is perfectly fine based on your research! I always pay attention to lightfastness on their labels but this proof is reassuring. Thank you for going to such lengths!

Thank you so much for sharing and taking the time to make all these tests!! I started gouache because of your videos, and your recommendations and reviews have been instrumental to the materials I have purchased! Thank you from the bottom of my heart for the beautiful and inspiring paintings you make and share! ❤️❤️

Sarah thank you for doing these lightfast test swatches. It really does help when making selections for purchasing! ☺️

Thank you so much for sharing this information; and not even charging for it but sharing it for free 🤩Unfortunately I can press the like button only once 😕 Have a great weekend 🥰

I love that you cut the swatches in half (which makes it so much easier to see the difference) and you included various tints!

Thank you for saving us from having to do these tests ourselves!

Thanks, Sarah! Good to know WN and Holbein were ok.

Thank you for sharing your passion for gouache! I really appreciate the time and effort you put into your lightfast tests and then the time to produce the videos.😘

Incredibly helpful Sarah! Thank you

Hey Sarah! thank you for these lightfastness tests you do, this is so helpful and informative. The ASTM ratings and the ratings some companies give their colors can be outright false, so independent tests like yours, Kim Crick, and handprint (Bruce MacEvoy) offers us artists more accurate results compared to what the industry says.

Sarah I invested in Shinhan a while ago based on your recommendation and love them so I am very happy with this test. Also I was impressed with the results of Ateza, do you think if mixed with a different brand of white more lightfast it would improve the longevity of Arteza? I have hesitated getting them because I am concerned about the lightfastness, but as a rule I only tint with my Holbein and W n N whites.

THANK YOU for doing all this! I'm looking forward to hearing about the Turner set. I sure appreciate the time and effort you put into this. 👏

So many details in gouache… I can see why you’re fascinated (and why I’m getting there!) 😂 Thank you so much for doing this and sharing with us, Sarah. ❤

Very interesting. Thank you for showing me how you test the colors. The outcome speaks volumes.

Thank you for showing us your results ❤

This is so good, what a fascinating video ☺☺

Thanks for this. I'm glad I picked up the Meeden as my beginner gouache set over the Arteza, at least based on these results.

Thank you!❣

Thank you so much, Sarah. ☮️❤️🙏

Wow super excited & surprised by some of these. Thanks so much for the wonderful undated information about gouache brands.

Wonderful. Thanks for doing these tests so I don't have to! I didn't know about Prussian blue fading in tints, but it explains why Schminke don't have a Prussian blue in their Horadam range as they are super fussy about lightfastness. I have made my own Prussian blue gouache, so I think I'll do some tints and see how it fares.

Sarah...ART SCIENTIST 😎

So helpful! Thank you so much, Sarah!

This was so helpful . Thanks so much . What an interesting video . I just love everything gouache :)

Thank you for sharing these ❤ enjoyable to watch

One thing to keep in mind if you've got fugitive colours on your palette is that you can get uv filtering glass when framing the paintings to protect them.

Good to know! Thanks for sharing 🙏

Clicked so fast! I'm such a lightfast geek but can never seem to do my own tests LOL

The M Graham performance was pleasing to me as a fan of the range. I was very impressed with the Napthol Red's lightfastness. It's a colour I avoid as it's not the highest rated, and the Australian sun is pretty brutal on cooler-biased reds, but maybe I should just relax a little there.

Very interesting!! Tysm for the experiment!!

Hi Sarah. Thanks for all that information. You saved me a lot of time. I love all of your videos and greatly appreciate the time and effort you put into creating them. One question. If I thin my acrylic or regular gouache down to look like watercolor, will that affect the lightfastness?

Whew. I bought over seventy tubes of Holbein and ShinHan. Glad to see they hold up. 😅

This was great information!

Interesting info. Thanks for doing this.

Ohhhh… I had no idea Prussian blue was such a problem child. I love that colour 😢. I always think of reds/pinks as being problematic so I’m cautious with them, but thought blues were safer.

thank you!

That’s really interesting - great work - i don’t understand why the white mix is more likely to fade - is it diluting the pigment or another quality in the white please? Thanks really enjoyed this.

Thanks so much - this is truly helpful :-)

thank you for thissss

Had to laugh at myself, I held my breath on a couple I like but it was great to see they did well. Oh, the shin Han too. We should be getting a new box any time now. I still r e a l l y appreciate that they fit in the mail box. Too many porch pirates in the us. Than you.

I'm a bit confused why you didn't talk about "stars". Like one star violets and pinks do disappear, it's just the thing they do! It's only important if they're aren't one star.

Thanks so much. However the testing is not complete unless you move to a tropical island near the ecuator for 6 months😂

I have my favourites, and I was like "please be okay, please be okay" hahaha(they were!) I would be really interested to see how the HIMI changes in a closed sketchbook...it was such a drastic change that I wonder whether it is all UV related?