Atelier Acrylic Medium - Thick Slow Medium Size:250ml Dries to a very hard

Dries to a very hard matte finish and may be either overpainted or mixed with Jo Sonja's Artists' Colours before application to produce a coloured

we suggest pre-testing to ensure compatibility

Dried Stains: Prepare a bucket or sink with lukewarm water

depending on colour and film thickness

Derivan Block Ink Medium & Extender

Atelier Acrylic Medium - Thick Slow Medium Size:250ml Dries to a very hardThis is an old timer from the interactive medium range. If you use it, you need to plan your painting alla prima (all in one go) because you cannot over paint, maybe for several days. Thick Slow Medium is excellent for outdoor sketching, but is not as popular for indoor painting.