Additives play a very important role in the formulation of liquid and powder coatings. Polymers alone cannot cover all the demands and performance features asked by the industry. But most additives are provided in liquid forms, so they are hardly ever compatible with powder. Therefore the little helpers for powder coatings should be provided in a solid form with a melting point beyond 50°C. Also non-reactive with the polymer and hardener, specific in function and as effective as possible at low addition rates. The list of potential additives can be very long, ranging from known func-tions of liquid coatings like: ...
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