THERMOCHROMIC SCREEN PRINT INK
▸ The screen printed object changes color with hand touch
▸ This is the most popular color combination for picture/secret messages reveal when ambient temperature is lower than 70°F/21°C (Escape Rooms)
▸ Due to higher outside temperature at summer time you may receive the Screen Print Ink in grey color. Place the container in a refrigerator to turn the Screen Print Ink's color back to black
▸ Reversible Cold or Hot Reactive Screen Print Ink
▸ High quality NON-TOXIC product