Unleash your creativity with our Thermochromic Ink! This cutting-edge black ink undergoes a magical transformation at 31°C (87.8°F), unveiling concealed designs upon touch or rubbing. Ideal for interactive art, covert messages, and one-of-a-kind textiles, this ink opens up a world of possibilities for your projects. Experience seamless color transitions and achieve professional-grade results with this innovative product. Product Specifications: Ink Type: Thermochromic Ink Color: Black Activation Temperature: 31°C (87.8°F) Application Method: Recommended for screen printing; suitable for smaller projects using a foam roller System: Consists of a two-part system comprising a pigment-rich slurry and a specialized binder Mixing Ratio: Optimal performance achieved with a 50/50 mixing ratio Surface Compatibility: Suitable for textiles, paper, and board; contact us for compatibility with other substrates Coverage: Apply 2-3 thin, even coats for best results Safety: Material Safety Data Sheet (MSDS) provided with each order Storage: Store in a cool, dark place away from direct sunlight.