It’s Halloween – Celebrating Arctic IR Blacks and RTZ Orange and Violets

October 28, 2025
Pigment reflectance graph comparing Standard White, IR Black, and Standard Black across 300–2300nm wavelengths.

Is that Cauldron Black or IR Black? Is that Pumpkin Orange or RTZ Orange? Is that a Black Light or Violet?

The days shorten and nights lengthen, leaves tumble, and temperatures dip for most of us. The allure of Halloween and tales of things that go bump in the night rival our craving for pumpkin spice lattes. Shepherd Color delves into this seasonal spirit by examining the hyperspectral properties of three timely products: Arctic® IR Blacks, RTZ Orange, and Violet pigments.

Black Pigments

The fear of nighttime often arises from our inability to discern the hidden workings in the darkness, the mystery, the unknown. Similarly, while approximately half of the sun’s energy resides in the visible wavelengths, the other half exists in the invisible infrared spectrum. Arctic IR reflective pigments work in these hyperspectral realms by reflecting light instead of absorbing it. Such characteristics are beneficial in diminishing solar-induced heating in building materials, offering self-driving cars invisible markings, and enhancing the sort ability and recyclability of plastics. Shepherd Color offers an extensive variety of Arctic IR Black pigments, from deep black masstone products to those with high tint strength. Key products are Black 10G996 and Black 10P950. The Dynamix easily-dispersed Black 30C940 and 30C941 make incorporating IR Black technology into coatings fast and easy.

 

Orange Pigments

When it comes to Halloween staples—be it candy corn, costumes, or decorations—orange is the quintessential complement to black. Shepherd Color’s RTZ Orange pigments eliminate the challenges of color matching within the yellow spectrum. Though RTZ Orange pigments were conceived in the previous century and only commercialized in the current one, they lacked optimal performance until Shepherd Color introduced enhanced versions. Through meticulous research into pigment chemistry, we crafted a superior variant boasting richer red tones, excellent heat stability, and remarkable weather resistance. While orange is a captivating hue, the real magic of our RTZ Orange 10P340 pigment lies in seamlessly introducing red tones to high-chromaticity color blends. The key RTZ Orange products are Orange 10P340 for plastics and Orange 10C341 or coatings.

 

Violet Pigments

Finally Violet, another complementary color to black and orange during Halloween, creates a rich spooky palette. Shepherd Color offers Manganese Violet (PV16) pigments that are excellent for shading white colors. White pigmented polymers often can take on a yellow cast. To address this yellowness and improve neutral cool-tone of white, small but controllable amounts of Violet 11T banish the yellow cast and make your whites pop. For higher temperature applications our Violet 92 Cobalt Violet (PV14) gives engineering polymers bright, clean neutral whites.

 

In eerie unison, the Arctic IR Reflective Black and RTZ Orange pigments rise like spectral sentinels, warding off the lurking dangers that threaten the very soul of paints and coatings. It’s no mere mortal tale—Shepherd Color’s pigments possess other worldly resilience against the ravages of time and heat. And with a touch of Violet enchantment, they conjure brilliance into whites, casting a spell of spectral luminosity that defies the ordinary.

Learn More:

Shepherd Color’s Arctic IR Reflective Pigment Technology

Shepherd Color Recognized as the Top Inorganic Color Pigments Manufacturer for 2025

Shepherd’s Blue Pigments

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