

KT-100 Silver Pearl Pearlescent Pigment — Iriodin 100 Equivalent
Silver white pearlescent pigments are one of the most specified effect pigments across coatings, plastics, printing, and cosmetics — and KT-100 is Kolortek's direct-working equivalent to Iriodin 100. Same mica-titanium dioxide platform, same particle size range, same optical behavior. If your formulation was built around Iriodin 100, KT-100 slots in without reformulation.
That said, "equivalent" doesn't mean identical in every edge case. What it means practically: the substrate, platelet morphology, and refractive index are comparable enough that you won't be redesigning your process to accommodate it.
Номер изделия. :
KT-100Цветовой эффект :
Silver PearlРазмер частиц :
10-60μmКомпозиция :
Mica, Titanium DioxideБренд :
Kolortek / OEMМинимальный объем заказа :
25KGПриложение :
Paints & Coatings, Printing Inks, Cosmetics, Soaps, Nail Polish, Epoxy Flooring, Artificial Marble, Crafts, etc.KT-100 is a muscovite mica substrate coated with titanium dioxide, producing a clean, neutral silver pearl effect. The particle size sits in the mid-range — typically 10–60 µm — which gives you broad-angle coverage without the graininess of coarser grades. It scatters light evenly, and the lustre is consistent across viewing angles.
When used in transparent or semi-transparent systems, it delivers pearl without masking the base color. Mixed with transparent pigments or dyestuffs, it carries the hue while preserving the metallic character. Blended with carbon black, the result shifts toward a silver-grey metallic finish — a useful combination for automotive-style interior coatings and certain ink applications. Combined with aluminum paste, it moves toward a bright, high-opacity silver.
Worth noting: KT-100 falls within the Silver White Series — the foundational series in Kolortek's pearlescent pigment range, designed for broad compatibility and process flexibility.
| Model | Series | Effect | Reference Equivalent |
|---|---|---|---|
| KT-100 | Silver White Series | Silver pearl, neutral white luster | Iriodin 100 |
Beyond the Silver White Series, Kolortek's pearlescent pigment portfolio extends into Interference, Gold, Metal Luster, Multicolor, and Borosilicate series — relevant if you're specifying across a broader effect palette. For cosmetic-grade applications, the Cosmetic Pearl Multicolor series carries the appropriate compliance profile.

KT-100 is a general-purpose silver pearl, which means it performs across a wide range of systems. In practice, the strongest fits are:
For procurement teams evaluating this as a merck pearlescent pigments alternative in an existing supply chain: KT-100 is designed to align with the same use-case profile as Iriodin 100, making it a viable drop-in candidate for most of the above application categories without reformulation risk.
These are standard, industry-consistent parameters for this pigment class — not proprietary claims:
Dispersion is where most people run into issues with pearlescent pigments, not the pigment itself. KT-100 should be incorporated with low-shear mixing — high-shear or bead milling will break platelet structure and destroy the pearl effect. Pre-wetting in a small amount of solvent or resin before adding to the main batch helps with wetting and prevents agglomeration.
In waterborne systems, pH control matters. Most mica-TiO₂ pigments perform reliably between pH 4–9; outside that range, surface coating stability can degrade over time.
If you're using KT-100 alongside aluminum paste to push toward a brighter, more opaque silver finish — the loading ratio matters. Start lean with the paste and adjust; aluminum paste can shift the system quickly toward a flat metallic rather than a pearl effect if overdone.
For formulators considering this as an iriodin alternative: the handling and dispersion behavior will be familiar. No exotic process changes required.
If you're evaluating KT-100 as an iriodin effect equivalent for an existing formulation, the fastest path is a direct comparison trial. We can provide samples in the particle size range relevant to your application, along with basic technical data.
For procurement teams managing a supplier transition, we're set up to support qualification with lot consistency data and technical documentation on request.
Reach out directly: contact@kolortek.com