Minatec®, the versatile family of functional pigments from Merck with a wide range of talents. Because of their conductivity, our functional pigments are used in the production of light paints and coatings with conductive properties or the preparation of plastic surfaces for electrostatic coating. Minatec® accelerates the drying time for light coatings and reflects solar radiation.
Controlled discharge of electrical charge
Minatec® 31 CM, Minatec® 40 CM, Minatec® 51 CM and Minatec® 60 CM offer numerous possibilities to formulate conductive coatings in light colors. The permanently conductive, light grey pigments are used increasingly for industrial applications where carbon black is undesirable. Their substrates are coated with antimony-doped tin oxide and allow the controlled discharge of electrical charges. They are suitable for industrial applications that require a surface resistance of 104 to 109 ohms – especially for antistatic coatings for light and multi-colored surfaces.
Antistatic flooring and conductive primers
One industrial use for Minatec® pigments is in antistatic flooring and conductive primers. Light-colored antistatic flooring is used in the production of electronic components, which need to be protected against uncontrolled electrostatic discharge. They are also found in production facilities, warehouses, clean rooms, hospitals and explosion-protected production areas and laboratories.
A distinctive feature in floor coatings is the translucent coating of laminate with Minatec® 51 CM. Minatec® 51 CM imparts conductivity to any surface coating thereby changing the color properties and texture of light-colored decors to a very low degree only.
Light-colored conductive primers are used to prepare plastic surfaces for electrostatic application (ESTA). The automobile industry also makes use of this benefit, since the proportion of plastic in cars has risen significantly. Only Minatec® pigments make it possible to coat plastic mounting parts electrostatically with light colors – in the same color as the neighboring metal vehicle parts. Their use also benefits the environment because electrostatic application reduces coating consumption, energy input and the release of volatile organic compounds.
Minatec® 230 A-IR for shorter drying times
Infrared radiation is being utilized more frequently as an alternative or additional method to accelerate the drying process for coating materials. Merck is supporting this trend with the IR absorbent Minatec® 230 A-IR. The light grey pigment contains antimony tin oxide and has been developed especially to improve the IR absorption of light-colored coatings. Its use allows for considerably shorter drying times and thus leads to higher production capacities with reduced energy costs. In existing line coating plants with limited space, Minatec® 230 A-IR can also be used to solve space problems and the challenges these cause for the full implementation of flow and full hardening.
Sunny but still cool: Minatec® 870 TCP for glazing in greenhouses
Rooms flooded with sunlight but protected from the heating effects of solar radiation – that's what Minatec® 870 TCP is designed for. The unique properties of this functional pigment come into their own in light-permeable systems in architecture and landscape gardening. In coatings for skylights or light shaft covers, in greenhouse glazing or in glass elements for sunrooms – Minatec® 870 TCP (transmission control pigment) lets the visible sunlight through and diffuses it pleasantly. At the same time, it reflects most of the solar infrared, which makes up over 50 per cent of the sun's radiated energy.
Seasonal coating for greenhouses is an especially significant application. With Minatec® 870 TCP, the light conditions can be adapted to the needs of the plants – both flowers and vegetables. Minatec® 870 TCP works by letting through the light the plants need to grow but reflecting the heat radiation. This adjustable shade effect protects the plants and encourages them to grow.