Silicoil Brush Cleaning Tank
The flag, the delicate split-end of each bristle tip, if damaged opens the bristle's hollow shaft to capillary drying of its natural oils. The brittle bristle then breaks.

Stroking the brush across the smooth aluminum coil screen submerged in Silicoil Brush Cleaning Fluid effectively exposes oil colours in the brush to the fluid's cleaning action. The colour solids settle to the bottom, the flag is undamaged, the brush is properly cleaned, and will remain pliable indefinitely.
Acrylic and other water-based colours are easily cleaned from brushes using clear water.
 
Silicoil Brush Cleaning Fluid
An extremely slippery liquid - instantly slides color solids from bristles of brushes.
Preserves and conditions - brushes remain soft, shaped and pliable indefinitely. Soap and water is unnecessary after cleaning.
Used in combination with Silicoil Brush Cleaning tank. Does not lose potency - use over and over again.