BYK 1788 is an emission-free polymer additive that is especially suitable for high-solid and solvent-free systems. BYK 1788 combines broad compatibility with an effective defoaming action and can be used both in the millbase and in the letdown product. It contains 100% solids and is VOC-free which predestines it for use in systems requiring emission-free solutions. BYK 1788 displays excellent air-release properties improving surfaces and reducing evacuation time. Using BYK 1788 improves surfaces and reduces the evacuation time of composites.