Originally Posted by Kristina9178
I am working with a quinacridone red mixed with a small amount of cadmium orange.
Besides adding white, is there a medium that can be used to make a transparent acrylic more opaque?
Thank you in advance for any help....
Yes, Liquitex makes a Matte Opaque Gel Extender Medium
(also called Gelex
). You can mix it with your acrylic paints to help make them more opaque without lightening them the way white paint will. I bought some in a local art store in a 237 mL jar. I don't know if it comes in other sizes.
I find this gel also gives me a bit more blending time and that's always a welcome surprise when working with acrylics. I use this gel with either tube colors or with Golden's Fluid Acrylics. I've been pretty happy with it.
You can also help make your more transparent acrylic colors seem like opaque colors by painting on a gray-toned ground (not too dark a gray, though). The mid-value gray ground helps the colors achieve apparent opacity much quicker in just one or two
layers than they could over a white ground. Experiment on some scrap surfaces and you'll see what I mean. If you already have your painting started on a white surface, you can paint in just a small area of gray under the place where you want to paint your transparent colors. Let it dry, then go over it with your colors. I think you'll be surprised at the result.
Hope that helps.