Wholesale XiallicSparks Pigment for automotive coatings and industrial finishes

What Makes Alumina Flake Different from Mica

The visual distinction between XiallicSparks and standard pearlescent pigments starts at the substrate level. Natural and synthetic mica carries a refractive index around 1.58. Alumina flake sits at 1.76. That gap matters: higher refractive index means more light is redirected at the flake surface, producing sharper, more defined highlights rather than the diffused luster typical of mica-based pearls.

Each Al₂O₃ flake has an exceptionally smooth surface, which allows very thin, uniform optical coatings to be applied during manufacturing. The result is a pigment where each individual flake behaves like a small mirror — highly reflective, with precise faceted sparkle. In automotive clearcoat systems, that translates to the intense, three-dimensional crystal effect associated with flagship OEM paint programs.

This is not a pearlescent category product. For general decorative coatings, inks, plastics, or cosmetics, our standard KT-100 through KT-9000 pearl series is the right starting point. XiallicSparks was developed specifically for applications where the crystal sparkle effect is the explicit design requirement — automotive OEM finishes, automotive refinish, and select high-end industrial coatings for electronics and luxury goods.

XiallicSparks Series: Grades and Xirallic® Cross-References

The current XiallicSparks range covers 11 grades. All share a 6–30 μm particle size. For formulators switching from Merck Xirallic®, most grades map directly to a Xirallic designation; a few grades in our expanded range have no Xirallic equivalent and represent additional color options we developed independently.

One note worth flagging for formulators: KT-F60-50-WR (Flame Copper) and KT-T60-20-WR (Luxury Gold) both reference Xirallic T60-20 as the equivalent, and the same applies to KT-F60-51-WR / KT-T60-21-WR against T60-21. These are distinct shades within the same general interference color family. If you're replacing a specific Xirallic reference, contact us with your target drawdown and we'll confirm the closest match from our panel.

Technical Characteristics

Automotive Effect Pigment Wholesale: Application Scope and Limits

XiallicSparks is engineered for automotive basecoat/clearcoat systems — specifically automotive OEM coatings, automotive refinish work, and high-end industrial coatings for premium consumer electronics and luxury goods. When sourcing automotive effect pigment wholesale, it's worth being precise about what this product category is and is not suited for.

It is not recommended for cosmetics, general decorative coatings, or standard industrial finishes where the cost-performance balance of mica-based pearls makes more sense. For those applications, the KT-100 through KT-9000 range covers the full scope of luster, interference, shimmer, and special-effect requirements.

Within automotive applications, XiallicSparks performs best applied over a black or dark basecoat — the contrast amplifies the crystal effect significantly. Multiple thin coats produce more uniform sparkle than a single heavy application, and topping with a high-gloss clearcoat both protects the pigment and enhances the visual depth.

Formulation and Processing Guidelines

Dispersion

Pre-disperse XiallicSparks in a small portion of the binder before adding to the bulk. Use a cowles blade or equivalent high-speed mixing equipment. The key constraint: avoid milling and any high-shear process that could fracture the alumina flakes. Fractured flakes lose the defined facets that produce the crystal effect, so shear management during dispersion is not optional.

Application Method and Coating System

Pneumatic spray (gravity cup or SATA-type guns) is the standard application method for automotive use; electrostatic spray is used for production efficiency in OEM environments. For best flake orientation, use coating systems with slow solvent flash and good flow characteristics. Proper flash-off time between basecoat and clearcoat is critical — rushing this step disrupts platelet alignment and degrades the final visual effect.

Loading sits at 3–8% on total paint weight. Going beyond the upper end of that range doesn't improve sparkle — it typically reduces transparency and can interfere with orientation. In our experience supporting OEM and refinish customers, staying within the stated range and optimizing the basecoat system gives more consistent results than adjusting loading to compensate for application issues.

Switching from Xirallic®

For formulators replacing a Xirallic® reference, use the direct equivalent in the model table above. The cross-references are documented against the published Xirallic series codes. Where two XiallicSparks grades share the same Xirallic equivalent (as with the T60-20 and T60-21 mappings), request a drawdown comparison from our technical team to confirm the visual match against your current standard.

Sourcing and Supply Information

XiallicSparks ships in 25 kg drums or cartons, with pallet quantities at 300 kg. Factory-direct pricing delivers cost savings of 20–40% versus Merck Xirallic® equivalents. OEM/ODM manufacturing, private label packaging, and custom color development are available, and small batch orders are accepted — useful for qualification runs before scaling to production volumes.

TDS is available for most grades; MSDS/SDS is provided with all shipments. Regulatory documentation packages are available on request. On certifications: Kolortek holds ISO 9001:2015 for production and sales across the pigment range, and REACH registration documentation is available — though product-specific confirmation should be requested for XiallicSparks, as the supplied REACH certificate specifically covers fluorphlogopite. XiallicSparks-specific certification documentation has not been published to our general KB; contact us directly to confirm regulatory support for your market or application.

Frequently Asked Questions

What is the difference between XiallicSparks and standard Kolortek pearlescent pigments?

XiallicSparks uses an alumina (Al₂O₃) flake substrate with a refractive index of 1.76, versus 1.58 for mica. This produces a crystal-like, faceted sparkle with sharper highlights and higher chroma than mica-based pearls. It is a non-pearlescent category, designed exclusively for automotive OEM and premium industrial coatings. Standard pearlescent applications are served by the KT-100 through KT-9000 series.

Is XiallicSparks a true drop-in replacement for Merck Xirallic® pigments?

For most grades, yes — XiallicSparks is positioned as a direct alternative to Merck Xirallic® products. The model table above lists cross-references for eight of the eleven grades, including Galaxy Silver (KT-T60-10-WR / Xirallic T60-10), Luxury Gold (KT-T60-20-WR), Galaxy Blue (KT-T60-23-WR), and Polar Green (KT-T60-24-WR). Visual confirmation against your current drawdown standard is recommended before production sign-off.

What loading rate is recommended for XiallicSparks in automotive basecoats?

The recommended loading is 3–8% on total paint weight in automotive basecoat systems. Exceeding the upper end does not enhance the crystal effect and can reduce transparency and flake orientation quality. Multiple thin coats applied over a dark or black basecoat, followed by a high-gloss clearcoat, consistently deliver the best visual result.

Can XiallicSparks alumina oxide effect pigment be used in cosmetics or general decorative coatings?

No. XiallicSparks is not recommended for cosmetics, and face-safe certification is not part of this product line's scope. It is also not the right choice for general decorative coatings, where standard mica-based pigments from the KT-100 through KT-9000 range offer a better cost-performance fit. XiallicSparks is optimized for automotive OEM, automotive refinish, and select premium industrial applications.

Contact our technical team to discuss formulation requirements and request drawdown samples for your specific application.