Liquitex Heavy Body Acrylic Sets, Splatter Brushes & the Cost Math Nobody Tells You: A Procurement Manager's FAQ

I manage procurement for a 200-student art school in the Midwest. My annual budget for art materials is about $120,000, and I've logged every invoice in our cost-tracking system since 2019. So when I get questions about acrylic paint pricing, splatter brushes, or whether we should buy a UV printer, I answer with numbers, not opinions.

Here's the FAQ I've built from six years of purchasing decisions, a few expensive mistakes, and a spreadsheet that finally made our paint costs transparent.

Is the Liquitex Heavy Body Acrylic Set of 24 actually worth it?

Short answer: usually yes, for classrooms. But do the per-milliliter math first, because the set's value depends on how you buy paint.

A 24-set of Liquitex Heavy Body Acrylic (22ml tubes) runs roughly $60–$90, depending on the retailer and whether you catch a discount cycle. That's about $0.15 per milliliter. Individual 59ml tubes in the same Professional line cost $6–$9 each — around $0.10–$0.15/ml. The set isn't a per-volume bargain; it's a per-color bargain. You're getting 24 colors for roughly the price of 9 to 12 individual tubes.

So the real question is whether your artists need color range or large quantities. For a foundation painting class, the set wins. For large canvases, that white is going to disappear fast, and you should buy 250ml jars of the colors you burn through most.

What's the actual difference between Liquitex Professional and Basics lines?

It's tempting to look at unit prices and assume the Basics line is the smart buy. It's not that simple.

Basics has less pigment and more binder/filler per volume. In practice, that means a single coat of Professional Heavy Body will cover a 12×16" canvas, where Basics often needs a second coat. The price per finished painting is much closer than the price per bottle suggests.

In our department, we use Basics in the foundation courses where students are experimenting and learning technique. Our advanced classes get the Professional line. The difference works out to roughly $12–18 per student per semester — and the work quality difference is visible in the advanced-level portfolios.

Is the Liquitex splatter brush a gimmick?

I was skeptical when our painting instructor first asked me to order them. A splatter brush looks like a standard flat brush with longer bristles, and it costs 15–20% more than the comparable standard brush. On paper, that's an easy no for a cost controller.

Then I watched it used in a class of 20 students. The longer bristles hold more paint and release it with more control. That means less overspray, less wasted paint, and lower cleanup time — which, in budget terms, is the same thing as buying fewer mop heads and roll-up paper rolls. We estimated the brush pays for itself in reduced paint waste after 10 classroom sessions.

Durability, too: we bought 30 of them in Fall 2023, and as of January 2025 we've replaced exactly one. Our cheaper brushes don't come close to that.

Wait — a CPM calculator for art supplies?

Yes, but not the marketing CPM. In the ad world, CPM means cost per mille — cost per thousand impressions. In my procurement spreadsheet, CPM stands for cost per milliliter, and it's the calculation that ended most of our “is this paint too expensive” arguments.

The formula is simple: CPM = price ÷ total milliliters.

Examples from our actual catalog data: a 250ml jar of Liquitex Heavy Body at $20 works out to $0.08/ml. A 59ml tube at $8 works out to $0.14/ml. Same paint line, very different costs per use. If you're only looking at the shelf price, you'll consistently make the wrong call.

I built this into a simple calculator on our shared drive. It takes 30 seconds to compare two products. Last year, it directly changed about 60% of our bulk paint purchasing decisions — and none of them were close calls once the math was visible.

Should we buy a UV printer for the art school, or outsource it?

This comes up every time our printmaking faculty sees a UV printer demo. These machines print full-color images directly onto acrylic panels, wood, metal, and other rigid substrates. They're impressive. They're also expensive in ways that go far beyond the sticker price.

A used or entry-level CMYK UV flatbed printer runs about $8,500–$28,000. On top of that: installation, ventilation, a dedicated footprint, insurance, and training. Consumables run roughly $0.50–$1.50 per square foot of printing, and printheads need replacing every 12–24 months at $200–$800 per head.

Publicly listed print prices, January 2025: business cards run $20–$35 for 500; flyers run $80–$150 for 1,000. Custom UV prints on small acrylic or canvas panels typically run $5–$25 per piece at low quantities. Prices exclude shipping; verify current rates.

The breakeven point for us came out to roughly 200–300 rigid panels per year. Below that, ownership loses on total cost. Above that, it starts to make sense. Don't ignore the non-financial costs either: a misaligned color profile on a completed student batch is a rework expense no spreadsheet predicts. Do a test print before every production run. A 15-minute test with a $30 ink cartridge prevents the $1,500 batch you can't uncook.

Also remember: for standard products and quantities, online printers are dependable. For non-standard substrates or when you need hands-on color matching under studio light, outsourcing isn't an equal substitute. And if your students have a show date, a guaranteed turnaround matters because it's certain — not just because it's fast.

How do you thicken acrylic paint without buying expensive mediums?

Let's start with a truth that saves people real money: sometimes you shouldn't thicken at all — you should buy heavy body paint instead. Buying soft body or fluid acrylic and adding thickener is rarely cheaper per usable milliliter.

That said, there are legitimate ways to thicken acrylics without dropping $25 on a specialty gel:

1. Let it evaporate. Leave the paint exposed for 30–60 minutes. Water escapes, body increases. It's the cheapest thickener in the studio.
2. Use a gel medium like Liquitex Gel Medium. At about $15–$25 per 250ml, it increases the paint's body and volume — often cheaper per finished painting than buying more tubes.
3. Mix fluid paint with gel. You preserve the color strength better than adding water, and you control the final consistency.

What I do not recommend: flour, cornstarch, or wall putty. I've seen the aftermath — cracked surfaces, dulled colors, and adhesion failures that turn a $3 “save money” hack into a $150 repaint. Prevention beats correction. Every time.

When should you not buy Liquitex?

I'm a procurement manager, not a brand ambassador. There are scenarios where Liquitex isn't the right answer:

• If you're a complete beginner trying out acrylics for the first time, a smaller student-grade set is a reasonable starting point.
• If your program needs exterior-grade paint for outdoor murals, heavy body acrylic is good but not always the best exterior-specific option.
• If you're only doing airbrush work, there are more specialized lines than Liquitex's otherwise solid options.

What I'm not saying is “buy the cheaper brand.” Over six years of tracking every dollar, I've watched cheap acrylic turn into reprints, repurchases, and frustrated instructors — the savings evaporated fast. We bought the wrong paint once, an entire batch for a mural project, and ended up repurchasing at a 40% higher cost with expedited shipping. That mistake is now a case study in our procurement handbook. Buy the right paint for the job, do the CPM math, and don't treat art supplies as a place to cut corners.

If I could redo my first year as a buyer, I'd have built the CPM calculator before my first bulk order, not after my third mistake. Five minutes of spreadsheet work beats five weeks of budget overrun. That's not a slogan; it's literally what happened.