Kaleido Colorworks · RapidAir

KT201 Airbrush Thinner — 210ml

Water-Based · Non-Toxic · Optimised for RapidAir Paints · Solvent-Free

✅ Why Use a Dedicated Thinner?

🔹 Formulated for Kaleido RapidAir — maintains flow, adhesion, gloss, and durability when thinning, unlike plain water which can weaken all of those

🔹 Smoother spray than water or IPA — users switching from DIY mixes report less graininess and better levelling, especially on gloss finishes and large surfaces

🔹 Dial in your consistency — fine-tune paint viscosity for any nozzle size (0.2–0.5mm) and any pressure setting

🔹 Non-toxic and solvent-free — safe indoors, gentle on airbrush seals and O-rings, low odour

🔹 The everyday thinner in the Kaleido system — part of the core trio alongside KT202 Retarder and KT203 Cleaner

📋 Product Description

The KT201 is the standard airbrush thinner from Kaleido Colorworks' RapidAir range. It's the bottle you'll reach for most often — the everyday workhorse for adjusting paint consistency before spraying. Unlike the KT202 Retarder Thinner, it doesn't contain retarding agents, so drying time stays normal.

Kaleido's RapidAir paints come pre-thinned and ready to spray for most setups, but you'll still want to fine-tune depending on your nozzle size, pressure, and the effect you're after. The KT201 is designed to thin the paint without degrading its adhesion, coverage, or finish quality — which is where it outperforms plain water or generic thinners that can introduce graininess or reduce the paint's binding strength.

A practical starting point from user testing: approximately 0.5ml of paint + 2 drops of KT201 gives a smooth, glossy layer through a fine nozzle. Adjust from there based on your setup and preferences.

🔄 The Kaleido Core Trio — Where KT201 Fits

💡 KT201 is the one you'll use the most. Add KT202 when you need longer drying time. Use KT203 to clean up.

📐 Specifications

📦 What's in the Box

🔸 1× Kaleido Colorworks KT201 Airbrush Thinner — 210ml bottle

💡 Pro Tips

🔹 Start with 2 drops per cup load — Kaleido paints are pre-thinned, so you often need less thinner than you'd expect. Add gradually until the consistency feels right for your nozzle size and pressure.

🔹 Don't over-thin — too much thinner reduces coverage and adhesion. If you find yourself adding more and more to get smooth flow, the issue may be pressure, nozzle choice, or paint blockage — not paint thickness.

🔹 Add KT202 for blending and glosses — if you're getting tip dry or need more working time on the surface, a drop or two of KT202 Retarder alongside KT201 gives you the best of both worlds.

🔹 Better than water, every time — water can break down the paint's binding agents and introduce graininess. KT201 maintains the paint's intended chemistry while thinning it. The difference is especially visible on gloss and metallic finishes.

⚖️ Worth Knowing

▸ Water-based acrylics only — not designed for enamels, lacquers, or solvent-based paints. Use the paint system's own thinner for those.

▸ Won't solve tip dry on its own — KT201 is a thinner, not a retarder. If you're fighting tip dry in warm or dry conditions, you'll want the KT202 Retarder Thinner instead (or both together).

▸ Over-thinning weakens the paint — like any thinner, too much will reduce coverage, adhesion, and mechanical durability. Thin gradually and test on a palette or scrap piece first.

▸ Most valuable for Kaleido users — if you use multiple paint brands and prefer one universal thinner for everything, KT201's advantage is smaller. It's at its best when used within the Kaleido ecosystem.

🚚 Shipping

📬 Same-day dispatch — orders placed before 3:00 PM (Mon–Fri) go out the same day

📍 Shipped from Derby, UK — centrally located near the Royal Mail superhub for fast delivery nationwide

🌍 International shipping available — tracked service worldwide

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