Why Oil Painting Deserves Its Reputation
Oil paint has been the medium of choice for masters like Rembrandt, Vermeer, and Sargent — and for good reason. Its slow drying time allows for extended blending, reworking, and subtle color transitions that are difficult or impossible to achieve with faster-drying mediums. That same slow drying time also makes it more forgiving for beginners: you have time to correct mistakes before paint sets.
That said, oil painting does require some specific materials and an understanding of a few key principles. This guide covers everything you need to get started safely and effectively.
Essential Materials
Oil Paints
Like acrylics, oil paints come in student and artist grades. For beginners, student grade is a sensible starting point. A simple starter palette might include:
- Titanium White (you'll use a lot of this)
- Ivory Black
- Yellow Ochre
- Cadmium Yellow (or Hansa Yellow for a safer alternative)
- Cadmium Red (or Pyrrole Red)
- Alizarin Crimson
- Ultramarine Blue
- Viridian Green
- Burnt Sienna and Burnt Umber
Brushes
Oil painting brushes are typically made from hog bristle (stiff, good for impasto and texture) or softer synthetic filaments (good for blending and smoother work). Start with a small set: a couple of flat brushes in different sizes, a filbert or two, and one small round for detail work.
Mediums
Mediums modify the consistency, drying time, or finish of oil paint. Common beginner-friendly options include:
- Linseed oil: The most traditional medium; slows drying, increases gloss and flow.
- Refined linseed or walnut oil: Yellows less over time than regular linseed oil.
- Odorless mineral spirits (OMS): Used for thinning paint and cleaning brushes without the fumes of traditional turpentine.
Important: Use as little medium as necessary. Overloading with medium weakens paint film and can cause cracking over time.
Surfaces (Supports)
- Canvas: Stretched canvas or canvas panels, primed with oil-ground or acrylic gesso.
- Linen panels: Smoother texture, preferred by many professionals.
- Oil-primed paper pads: Excellent for studies and practice without the cost of canvas.
Always make sure your surface is properly primed before applying oil paint. Unprimed canvas will absorb the oil from the paint, leading to dull, brittle paint films.
The "Fat over Lean" Rule — The Most Important Principle
In oil painting, each subsequent layer should contain more oil (fat) than the layer beneath it (lean). This ensures that upper layers remain flexible and don't crack as they dry. In practice:
- Your first layers: thin paint, possibly diluted slightly with OMS, little to no added oil.
- Middle layers: paint straight from the tube or with a small amount of medium.
- Final layers: richer paint with more linseed or walnut oil for gloss and flexibility.
Ventilation and Safety
Even when using odorless mineral spirits, good ventilation in your workspace matters. Oil-soaked rags are a fire hazard — let them dry fully spread flat outdoors before disposing of them, or store them in a sealed metal container with water. Never ball up solvent-soaked rags and leave them in a pile.
Setting Up Your Palette
A traditional wooden or glass palette works well. Lay out your colors in a consistent order each session so muscle memory helps you find them without looking. Keep a small container of OMS nearby for brush cleaning between colors. Glass palettes are easy to scrape clean and are especially practical for smaller studios.
Starting Simple
For your first few sessions, try a simple monochromatic study using just one color and white. This removes color-mixing complexity and lets you focus entirely on values — the lights and darks that give a painting its three-dimensional sense of form. Once you're comfortable with values, color mixing becomes much more intuitive.