KT-68840221 Pink Diamond Effect Pigment Cosmetic Borosilicate

KT-68840221 belongs to Kolortek's Borosilicate Series — a line built around synthetic calcium aluminum borosilicate as the substrate rather than natural mica. That distinction matters in practice. Borosilicate flakes are optically cleaner, more uniform in shape, and carry a higher refractive index than mica-based alternatives. The result is a sparkling diamond effect that reads as distinctly three-dimensional under light.

The pink hue on this grade comes from a coating stack that includes titanium dioxide, tin dioxide, and carmine (CI 75470). Carmine is a well-established organic colorant in cosmetics, and its use here contributes to the warm, saturated pink tone rather than a flat or washed-out tint. Transparency is retained through the coating — the substrate's inherent clarity works with the oxide layers, not against them.

Series and Model Reference

Applications

KT-68840221 is designed specifically for cosmetic and personal care applications. Its safety profile and cosmetic-grade certification make it directly usable in formulations where skin or eye contact is expected.

• Pressed and loose eyeshadow palettes
• Highlighters and blush powders
• Face and body glitter-effect products
• Lip gloss and liquid lip products
• Nail lacquers and nail gels (where formulation allows)
• Decorative lotions and body luminizers

In practice, the 40–200 μm particle range means this pigment reads visually as a macro-glitter effect rather than a fine satin finish. It's suited for applications where visible sparkle and depth are the design intent — not a subtle background shimmer. As a cosmetic shimmer pigment, it performs best when used as a statement effect rather than a base layer carrier.

Key Characteristics

The borosilicate substrate is the defining factor here. Unlike natural mica, synthetic borosilicate flakes are produced with controlled geometry — consistent thickness, flat surfaces, and a high degree of optical uniformity. This translates directly to a higher and more consistent reflection index across a batch.

• Diamond-like sparkle: Large, smooth flakes generate multi-point light reflection — closer to faceted glass than conventional pearl.
• High transparency: The borosilicate base retains clarity through the oxide coating, allowing depth and layering effects in formulation.
• Warm pink color with carmine: CI 75470 provides a natural-origin red tone that blends into a vivid cosmetic pink without muddying transparency.
• Enhanced brightness: Compared to standard pearlescent grades, the reflection output is visibly stronger — noticeable both in compressed and loose powder formats.
• Smooth flake structure: Reduces mechanical damage during high-shear mixing, though care should still be taken in aggressive dispersion processes.

Worth noting: the 40–200 μm range is wide. Expect some particle size distribution across that span rather than a tight single-peak distribution. In most cosmetic applications this is acceptable and contributes to the textured sparkle aesthetic, but if you're working with a process that requires tight PSD control, request a distribution curve from the technical team before scaling.

Practical Formulation Considerations

Because of the larger particle size, KT-68840221 should be incorporated at the end of the mixing cycle in powder formulations. Adding it early into a high-shear blending process risks breaking the flake geometry and reducing sparkle intensity. Post-addition or gentle tumble blending is the preferred approach.

In wet systems — lip gloss bases, body luminizers, liquid foundations — the pigment disperses reasonably well without dedicated dispersants, though compatibility testing with your specific carrier is recommended. Borosilicate flakes tend to be denser than mica, so sedimentation management in low-viscosity systems may require a rheology modifier.

That said, for pressed eyeshadow applications this is a straightforward incorporation. Typical loading levels in a pressed eyeshadow formulation range from 10–40% depending on the desired intensity. At the lower end, it reads as an accent; at higher loadings, the full diamond effect becomes the dominant visual.

Carmine (CI 75470) is an animal-derived colorant. For vegan-certified formulations, this grade would not be suitable. Confirm with your regulatory and claims team before use in products carrying vegan or cruelty-free positioning.

Borosilicate vs. Mica-Based Pigments — A Direct Comparison

Frequently Asked Questions

Q: Is KT-68840221 safe for use around the eye area?
A: Yes. This product is formulated as a cosmetic-grade pigment specifically designed for decorative cosmetic applications including eye products. That said, always verify current regulatory compliance for your specific market — requirements vary by region, and your regulatory team should confirm final product compliance independently.

Q: How does this differ from a standard glitter mica powder or conventional pearlescent pigment?
A: The substrate is fundamentally different. Standard pearlescents use mica as the carrier flake; this product uses synthetic borosilicate, which offers higher optical clarity and a stronger specular reflection. The visual result is closer to crushed glass or diamond facets than the softer, diffuse shimmer of typical pearlescents.

Q: What is the recommended loading level in a pressed eyeshadow?
A: Loading levels depend on the final effect target and the base formulation. A useful starting range is 10–40% in the pigment blend. Start at the lower end, evaluate the visual output, and scale accordingly. Technical data sheet and formulation guideline support are available on request.

Q: Is this product suitable for vegan-certified formulations?
A: No. KT-68840221 contains carmine (CI 75470), which is an animal-derived colorant sourced from cochineal insects. It is not compatible with vegan or cruelty-free claims. If vegan compliance is required, alternative pink grades without carmine should be evaluated.

For technical data sheets, COA, MSDS, or formulation guidance on KT-68840221, contact the Kolortek technical team directly at contact@kolortek.com. Sample requests and custom packaging inquiries are handled through the same channel.