Opus Fortissimo Oil Brushes

Built for serious oil painting. Designed to last.

The Fortissimo is a professional-grade hog bristle brush that delivers exactly what oil painters need: confident paint loading, responsive stroke quality, and the durability to hold up through years of studio use.

Natural hog bristle has been the gold standard for oil painting brushes for centuries — and for good reason. Its firm, springy texture moves thick paint with authority, holds its shape under pressure, and produces the rich, textured marks that give oil painting its characteristic depth and life. The bristles are set in a seamless nickel ferrule that resists corrosion and stays secure through regular solvent cleaning, all mounted on a long green-stained hardwood handle that gives you the reach and control to paint with your whole arm.

The medium stiffness strikes the right balance — assertive enough for bold impasto work and broad blocking-in strokes, yet controlled enough for tighter passages and detail work. Available in Round, Flat, Filbert, Bright, and Fan across a full range of sizes, the Fortissimo covers every stage of a painting from first lay-in to final pass.

A note on care: natural bristle is an oil-painting-only material. Keep water away from it, clean thoroughly with solvent after each session, reshape the bristles, and store flat or bristle-up. Properly cared for, these brushes will outlast many cheaper alternatives.