Paints/Linseed Oil Paint
OilEarth / MineralAdvancedSafety: Moderate Risk

Linseed Oil Paint

The medium of Van Eyck and Rembrandt — pigment ground into pressed flax oil.

Color
Any pigment — slow-drying, glossy
Binder
Cold-pressed linseed oil

Slowly grind dry pigment into linseed oil until you get a thick, shiny paste — that's oil paint.

  • Oil dries by hardening with air, not by evaporating.
  • Takes days to dry, which lets you blend smoothly.
  • Same recipe Rembrandt used.

Steps

  1. 01

    Pile a small mound of pigment on the slab; make a well in the center.

  2. 02

    Add a few drops of linseed oil; mix with a palette knife to a stiff paste.

  3. 03

    Mull in slow circular motions for 5–10 minutes per color, adding oil sparingly.

  4. 04

    The paint is ready when it pulls cleanly from the muller — like soft butter.

  5. 05

    Store in small jars or empty paint tubes; cover with a drop of oil to prevent skinning.

Materials
3
  • Cold-pressed linseed oil (food grade or refined artist grade)
  • Dry pigment (earth, oxide, carbon, ultramarine)
  • A glass muller or smooth round stone, on a glass slab

Safety

Moderate Risk

Involves dust, mild chemistry, sharp tools, or solvents. Use PPE and ventilate.

Hazards identified
  • Spontaneous combustion risk on rags
  • Airborne dust — respiratory irritant
Quick checklist
  • Lay oil-soaked rags flat to dry, then submerge in water
  • Never crumple oily rags into a bin
  • Wear an N95 / FFP2 mask when handling dry powders
  • Mix in a tray to contain dust; wipe surfaces wet
  • Work in a ventilated area; keep food and drink out of the studio
  • Read each material's safety data sheet (SDS) before starting
  • Have water, soap, and a first-aid kit accessible

Heuristic guidance derived from listed materials. Always consult each material's safety data sheet (SDS) and a qualified instructor before attempting.

Notes

Earth pigments take little oil; carbon black drinks it. Dries in days, cures over decades.