It is a good idea not to use your good oil paint brushes for the acrylic paints. This brush is made from white bristle. This bristle brush was designed especially for applying acrylics. When painting the Jenkins style, this brushes is used mainly when painting the abstract acrylic backgrounds and acrylic color washes.
General Information on the Jenkins brushes:
Brushes and their uses:
With regard to brushes, consider the brush as a tool; if a brush is not properly constructed and is not made of superior materials, it can not possibly be used for proper application of paint. Your brushes must work with you, not against you. They are one of your most important tools. The brushes for the Jenkins Technique should come to very sharp chisels or points. The chiselled ends help to achieve the crisp edges, such as those found on flowers and leaves. When painting the Jenkins Style, bristle brushes are used only to apply the acrylic background. The Jenkins synthetic brushes are heat treated in an oven for a specific amount of time. This extra, special step in the manufacturing process is done to help the brushes keep their shape over their lifetime. A blend of different hair diameters is used to optimize the performance. The synthetic brushes are just a little bit soft and have a spring to them. If brushes are too soft, they will get limp when oil paint and medium are added to them. If a brush is too stiff, it will scratch across the surface and actually pull the oil paint off.
Brush Care, Cleaning and Conditioning:
Take good care of your brushes. If taken care of properly, they will last and perform well for a long time. It is very important that you clean and condition your brushes after every use.
For the oil painting brushes:
Rinse your brushes very well in clean, odorless thinner, until all the paint is removed. Repeat this step several times, then blot on an old towel or on paper towels. When you think you have all the paint out of the brushes, arrange them neatly on a dry clean towel and allow them to dry completely.
Once the brushes are cleaned and dried, it is a good idea to apply a little oil to the brush, such as baby oil or plain linseed oil. If available, a commercial brush conditioning oil can be used. The oil can be used on the synthetic and sable brushes. Dip the brushes in a little oil and work it through the hairs with your fingers. If you see a little oil paint color still in the brush, rinse the brush again in the thinner, dry it and re-apply the oil or conditioner. Shape the brush back to its original chisel or point while adding the conditioner. If a tiny particle of paint is left in a brush, especially near the ferule (metal part) of the brush, once it has dried, it can cause the flat chisel ends or the pointed ends to split apart. This will ultimately ruin the brush for its intended purpose. If using a brush container, always store your brushes upright, never with the hairs facing down.
Note: Do not use any brush conditioner or baby oil on the bristle or Mop Blender brushes. The Mop Blender only needs to be cleaned well in odorless thinner, then fluffed on a paper towel and allowed to dry.
For the acrylic bristle brushes:
Rinse them very well in plain water immediately after using the acrylic paint. Never allow the acrylic paint to dry in the brush.