Understanding Oil Painting Mediums
From Traditional Oils to Water Mixable Solutions
Oil painting has always involved more than just colour from the tube. By mixing paint with different mediums, artists can adjust the flow, drying time, transparency and finish of their colours. Mediums make it possible to work with thin washes, smooth blends, luminous glazes or thick, expressive brushwork.
From traditional oils like linseed and poppy oil to modern water mixable solutions, each medium changes how oil paint behaves and supports different painting techniques.
What Is an Oil Painting Medium?
A medium is an additive mixed with oil colour to modify its handling and working properties. Artists use mediums to:
- Improve paint flow and brush control
- Adjust drying time
- Increase transparency for glazing
- Change the surface finish from matt to gloss
Because oil paint is naturally incompatible with water, it traditionally requires solvents such as turpentine or low-odour thinners to dilute the paint or clean brushes.
Modern developments, however, have introduced water mixable alternatives that offer the same versatility with far less reliance on solvents.
Traditional Oil Mediums
Traditional mediums are based on drying oils or solvents and have been used for centuries to refine how oil paint behaves on the surface.
Linseed Oil
Linseed oil is the most widely used oil painting medium. It reduces the consistency of oil paint and slows drying time, giving artists longer to blend colours and work wet-into-wet. It also produces a rich, glossy finish that enhances colour depth and saturation.
Artists often use linseed oil for:
- Extending working time
- Improving paint flow
- Building transparent glazes
- Increasing colour richness
Because of its flexibility and reliability, linseed oil is a staple in most oil painters’ studios.
Stand Oil
Stand oil is a thicker, polymerised form of linseed oil. It improves the flow of paint while helping reduce visible brush marks, producing smooth and even paint films.
This makes it particularly useful for:
- Glazing techniques
- Smooth brushwork
- Creating durable paint layers
Stand oil dries slowly but forms a strong and elastic paint film, helping maintain the long-term stability of the painting.
Poppy Oil
Poppy oil is a clear drying oil that resists yellowing more than linseed oil, making it especially suitable for lighter colours.
Artists often use poppy oil when working with:
- Whites
- Pale blues
- Light yellows
It improves paint flow and gloss, although it dries more slowly than linseed oil and is usually used in moderation.
Turpentine and Oil Diluents
Turpentine and similar diluents have long been used to thin oil paint and create fast-drying underpainting layers. They improve flow and allow artists to produce very thin washes during the early stages of a painting.
These solvents are also commonly used for cleaning brushes and palettes.
Water Mixable Oil Mediums
Modern oil painting has expanded to include water mixable solutions that reduce the need for traditional solvents.
These mediums allow artists to thin paint and clean brushes using water while still working with the depth and richness of oil colour.
Water Mixable Oil Medium
This medium allows traditional oil paints to become water mixable simply by blending it with the colour. Once mixed, the paint can be thinned or cleaned with water instead of solvent-based mediums.
It retains the handling qualities of oil paint while offering a more convenient and studio-friendly way to work.
Water Mixable Linseed Oil
Water mixable linseed oil performs the same role as traditional linseed oil. It reduces paint consistency, slows drying time and produces a glossy finish, but it can be mixed and cleaned using water instead of solvents.
Water Mixable Stand Oil
Water mixable stand oil improves paint flow and reduces brush marks, producing smooth paint films while maintaining compatibility with water.
Fast Drying Medium
Georgian Water Mixable Oil Fast Drying Medium
Fast drying mediums accelerate the drying time of water mixable oils, making them particularly useful for underpainting or multi-layer works.
Why Water Mixable Oil Medium Is So Versatile
One of the most useful aspects of water mixable oil medium is that it bridges the gap between traditional oil painting and modern solvent-free techniques.
It Works with Traditional Oil Paint
By adding water mixable medium to conventional oil colour, artists can convert it into a water-compatible paint. This means painters can enjoy the handling qualities of oil colour while reducing their use of solvents.
It Creates a More Studio-Friendly Environment
Because these mediums are solvent-free, they reduce fumes and improve working conditions. This makes them particularly useful in:
- home studios
- classrooms
- shared workspaces
It Maintains the Qualities of Oil Painting
Water mixable oils still dry through oxidation like traditional oils, which means they retain:
- long blending times
- rich colour depth
- smooth glazing potential
The only major difference is how the paint is diluted and cleaned.
Choosing the Right Medium
Different mediums support different stages of the painting process.
| Medium | Best Use |
| Linseed Oil | Blending, glazing, colour depth |
| Stand Oil | Smooth finishes and controlled brushwork |
| Poppy Oil | Light colours and reduced yellowing |
| Turpentine / Thinner | Fast underpainting and washes |
| Water Mixable Oil Medium | Solvent-free oil painting |
| Fast Drying Medium | Faster layering and underpainting |
Many artists combine several mediums in a single painting, adjusting the properties of the paint as the work develops.
A Modern Approach to Oil Painting
Oil painting has evolved, but the role of mediums remains essential. Traditional oils such as linseed, stand oil and poppy oil continue to support classic techniques, helping artists control drying time, texture and transparency.
Water mixable mediums offer a modern alternative, allowing artists to work with both traditional and water mixable oils while reducing the need for solvents. For beginners, professionals and educators alike, they provide a flexible way to experience the richness of oil painting with greater convenience and control.
Featured Products
Georgian Clear Picture Varnish Oil Medium
Georgian Low Odour Thinner Oil Medium
Georgian Oil Linseed Stand Oil Medium
Georgian Oil Matt Varnish Medium
Learning & Resources
Frequently Asked Questions
How do you dispose of the tubes and paint?
Can the Watercolour Varnish be thinned and how should I do it?
What type of brush should I use should I use to apply varnish?
Why is the Watercolour Varnish difficult to apply?
What is the difference between lightweight and heavyweight drawing paper?
What is the difference between alla prima vs layered in oil painting?
How do you mix oil paint colours cleanly?
How do you choose the right watercolour paper?
How do you create soft and hard edges in watercolour?
How do you lift watercolour paint safely?
How do you use heavy body vs fluid acrylic?
How do you blend acrylics before they dry?
Canvas vs paper vs board: when to use each
Oil paint drying times: what to expect and why it varies
What does “fat over lean” mean when oil painting?
How do you glaze with oil paint?
How do you build layers when painting with oils?
Wet-on-wet vs wet-on-dry: when do you use each technique?
How do you layer watercolour without lifting previous paint?
How do you paint a clean watercolour wash (flat and graded)?
How do you control water for better watercolour results?
How do you glaze with acrylic for depth?
How do you layer acrylic paint cleanly?
How do you build texture with acrylics?
What paper should I use for watercolour?
Do I need solvents for oil painting?
Why is my oil painting cracking?
What’s the difference between pans and tubes?
Can I layer watercolour?
How do I stop blooms and backruns?
Why do my watercolours dry lighter than expected?
How do I stop streaks in acrylic paint?
Why do my acrylic colours look dull?
Can I use acrylic paint on any surface?
Why is my acrylic paint cracking?
How can I slow down acrylic drying time?
Why does my watercolour appear blotchy or uneven on paper?
How do I improve the water miscibility of the watermixable oils?
Why aren’t my water-mixable oil colours drying quickly enough?
Why is my watercolour paint too thick and hard to brush out?
Why are my oil colours drying too slowly?
Why are my oil colours too thick or difficult to brush out?
Why does my acrylic feel heavy or drag on the brush when painting?
Why is my acrylic paint drying too quickly?
Why does my acrylic paint dry too glossy?
How do I reduce the viscosity of the System3 Screen Printing Medium?
Why does my acrylic paint dry with a finish that is too matt?
Why is my acrylic or gesso too thick, gelatinous, or gloopy?
Do the Georgian Water Mixable Oils contain preservative Methylisothiazolinone and similar synthetic preservatives?
How do I update my preferences or subscribe to your newsletter?
How do I collaborate with/get sponsored by Daler-Rowney?
Where can I download your logo or product images/assets?
I didn’t receive any canvas wedges, where can I request them?
Do you sell other brands?
Can I buy directly from you?
Am I able to order samples?
Do you test on animals or use animal-derived ingredients?
What is the Fine Art Trade Guild?
I have scanned the QR code on the back of the Screen Printing kit product packaging but it does not lead anywhere?
I have scanned the QR code on the back of the product packaging but it does not lead anywhere?
How do I contribute a new how-to to your techniques page?
How do I find out more information about old products?
How do you preserve the longevity of finished artworks on paper?
How do I attach the canvas wedges?
How long do you need to leave an oil painting before varnishing?
I would like to try a medium, what would you advise?
How do you revive paint?
How do you open the Fluid Acrylics tubes?
My art masking fluid is coagulation and thickening, what should I do?
What do the terms pigments and solvents mean?
What does FSC® mean?
What does hue mean?
How do you prepare paper and seal your artwork?
How do you prevent your drawings smudging?
How do you remove sheets from blocks?
Why is my paper buckling & how do you minimise it?
What are the available formats for artist papers?
What are archival papers?
Why are there so many shades of white for papers?
What are the variety of artist papers available and their key features?
What are the ingredients of artist papers?
What are the differences between white/natural and coloured paper for finished artworks?
What does is the difference between smooth and textured paper?
What does sizing and paper weights mean?
How are artist papers manufactured?
How do pastels stick to papers?
What technique is not supported by mixed media papers?
What are the characteristics of mixed media paper?
What techniques are best used on drawing and sketching papers?
What is the difference between the different weights of the Fine Grain paper range?
Why are acid-free papers important for artists?
Are your surfaces acid-free?
Do your products contain per-and polyfluoroalkyl substances?
What do the surface symbols mean on your paints?
Are your products non-hazardous?
What type of palette should you use with which type of paint?
What is the difference between artists and student colours?
What do all the different mediums do?
What is the difference between all our inks?
What is the difference between the different whites in our ranges?
What is the advantage of using the products in the same collections for artists?
What do I do if my ink is seperated?
Why is the System3 collection good for murals?
How many times is the colour milled to create Georgian oils?
How do I paint on plastic using acrylic paints?
What medium would you recommend to a beginner watercolour artist to try out alongside Aquafine watercolour paints for some great effects?
What medium could you thin your oil paint down with and at the same time slow down the drying time?
What oils do you use in your oil paints?
What is drying oil?
Do your watercolour paints have granulation and staining properties?
How should I take care of my artist brushes?
What filament is best for what technique?
Can you explain what the different brush types do?
Would your products affect any allergies that I may have?
What does the hazardous symbol on the label mean?
Are your products EN71 compliant?
What are the shelf lives of your paints?
What’s the difference between water-based v solvent – based paints and why preservatives are used?
Do you sell a colour wheel?
Where can I download a product’s colour chart?
What levels are your products?
Where can I find your latest Safety Datasheets (SDS) or Technical Data sheets (TDS)
How should I store sketchbooks and drawings?
What is the difference between sketching pencils and coloured pencils?
Can I mix media on drawing paper?
What is the benefit of using different paper textures?
Why does my paper buckle when using wet media?
What is the best paper for beginners?
Can I erase easily on drawing paper?
What is the difference between sketchbooks in the range?
What drawing materials work best on Daler-Rowney sketchbooks?
Can I use watercolour on drawing paper?
What is the difference between smooth and textured drawing paper?
What is cartridge paper used for?
Can I use ink or markers on drawing paper?
What is “tooth” in drawing paper?
What is the difference between sketch paper and drawing paper?
What can I use drawing and sketching paper for?
Find a Store Near You
Our products are available in thousands stores nationwide. Use our Store Locator to find your nearest retailer and explore our network of trusted art supply specialists. Visit in person to experience the quality firsthand, receive expert advice, and shop your favourite Daler-Rowney products locally.
Contact Us
Got a question? Start by browsing our FAQs for quick answers. If you can’t find what you’re looking for, get in touch by selecting the form that best matches your enquiry. We’d love to hear from you and are always happy to assist!



