Atelier Acrylic Medium - Thick Slow Medium Size:250ml If used as a varnish

If used as a varnish it may become tacky in warm weather and cause surfaces to stick together

400 Series Watercolor Art Journal — Available in three sizes

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

depending on colour and film thickness

we suggest pre-testing to ensure compatibility

Atelier Acrylic Medium - Thick Slow Medium Size:250ml If used as a varnishThis 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.