Split Fountain Screenprinting: How I Blend Colour On Press

Split fountain screenprinting is one of those techniques that looks effortless until you try it yourself.

You load two or more inks onto the screen at once. Side by side. Then you pull the squeegee across and watch the colours merge as they pass through the mesh. The result is a smooth gradient that shifts from one hue to another in a single layer.

No second pass. No overprinting. Just one pull with multiple colours blending in real time.

Why Split Fountain Is So Hard To Control

The difficulty is in keeping the colours separate until the exact moment you want them to meet. If you load the inks too close together, they'll muddy before you start printing. Too far apart and you'll get a hard edge instead of a blend.

Ink consistency matters enormously. If one colour is thicker than the other, it'll dominate the blend. I've wasted entire test runs because I didn't check viscosity first. Both inks need to flow at exactly the same rate through the mesh.

Mesh count plays a role too. I use 90T for split fountain work. Anything finer and the inks won't blend smoothly. Anything coarser and you lose definition at the edges.

Then there's the squeegee angle. Too steep and you'll push one colour faster than the other. Too shallow and neither colour will deposit properly. You need a consistent 45-degree angle and even pressure across the entire pull.

How I Set Up A Split Fountain Print

I start by marking the screen where each colour will sit. Usually a strip of masking tape on the underside to create a visual guide. Then I load the first ink on one side of the image area, the second on the other.

The first pull is always a test. I'm watching how quickly the inks migrate towards each other. If they're blending too fast, I'll adjust the spacing. If they're staying too separate, I'll move them closer or reduce the viscosity slightly with transparent base.

Once I'm happy with the blend, I lock in the setup and start the edition. Every print has to be pulled at the same speed with the same pressure. Any variation and the gradient shifts. That's why split fountain editions are always smaller than my standard runs. The rejection rate is higher.

What Makes These Prints Distinctive

The blend is never perfectly uniform across an edition. Each print has its own character. The gradient might lean slightly warmer on one impression, cooler on another. It's a hand-pulled variation that collectors notice immediately.

You can't fake this digitally. A printed gradient has a mechanical smoothness that gives it away. A split fountain blend has texture. You can see where the inks met. There's a physical boundary in the paper fibres where one colour starts to dominate the other.

I've used split fountain for skies, for water, for abstract colour fields. Anywhere you'd want a natural transition rather than a hard edge. It works especially well on heavyweight stocks like 300gsm Somerset Satin, which holds the ink on the surface long enough for the blend to develop.

When Split Fountain Doesn't Work

It's not suitable for every image. If you need precise colour placement, use separate screens. Split fountain is inherently loose. You're giving up control in exchange for something more organic.

It also doesn't work well with opaque inks. You need transparency so the colours can overlap without blocking each other out. I use process inks or mix my own transparent tints. Opaque white or black will just create a muddy brown in the middle of the blend.

And if you're printing on a dark stock, forget it. Split fountain relies on the paper tone showing through the transparent inks. On black or navy paper, the gradient disappears.

Why I Keep Coming Back To It

Because it forces me to let go. Most of my work is about control. Tight registration. Clean edges. Predictable results. Split fountain is the opposite. You set it up as carefully as you can, then accept that the press will decide the final outcome.

There's a spontaneity to it that I don't get with standard screenprinting. Every pull is a small negotiation between what I planned and what the inks actually do. Sometimes they blend exactly where I want. Sometimes they surprise me. Either way, the print is irreversibly itself.

That's what makes split fountain prints worth collecting. They're documentation of a single moment in the studio. The precise combination of ink, mesh, pressure, and timing that existed for those few seconds. You can't repeat it. You can only move forward and pull the next one.

If you'd like to see the prints I'm currently making, visit olifowler.com. Every edition is strictly limited and hand-pulled. Once they're gone, they're gone.