These Acrylix Series 201 Long Flat Brushes from Pro Arte are a new breakthrough brush designed as a synthetic alternative to the hog hair brushes for acrylic and oil painting. It goes way beyond to offer exciting new properties of its own. Acrylix, though firm, is flexible and has a lovely silky working texture - something it retains after many sessions in use. Prolonged standing in water has virtually no effect on them which is essential when using fast drying acrylic colours. This durable pearly filament also helps the artist to see and judge the colour on the brush; they'll endure and delight!
These are the type of brushes to use with water based oils - do not use hogs as the bristles swell. I like the long bristle length to produce smooth strokes. Add on a couple of Filberts and a 203 rigger to give you all you need to produce good results. Graham Watson (Warrington, United Kingdom) on 23 May 2012
Have used a number of brushes from this range with waterbased oils and found them very good. They keep their shape well and do not swell in water as with hogs. Graham Watson (Warrington, United Kingdom) on 9 Nov 2012
Just started using these, having read other reviews, and I really like them. They hold the oil paint well and have a good spring in them which is good for soft mark making. They hold their shape very well, even when dropped on the floor! Andrew Walker (Los Llanos Del Peral, Spain) on 28 Aug 2017