dependent for existence, occurrence, character, etc., on something not yet certain; conditional (often followed by on or upon): Our plans are contingent on the weather. 2. liable to happen or not; uncertain; possible: They had to plan for contingent expenses.
But they don't do a worse job, either. Sure, expensive bristle brushes allow you to spread the varnish out smoothly, but so does a forty nine cent foam brush. So it makes sense to use the lowest-tech, least expensive tool to do the job.
Wooden handled foam brushes are great for applying dyes, dye fixatives, primers or thin paints in large washes. They are also good applying dye to tie-dye instead of squirt bottles. Flat Brushes. Natural bristle, all purpose brushes for use with thickened dye, fabric paints, silk dyes, wax, afterfix, etc. These German made brushes are made of synthetic fibers and have nickle plated brass ferrules. They come in four sizes and range between 16mm to 24mm. Made for fabric painting of white nylon bristle.