Until now, water-based acrylic sealants have been regarded as basic grades with predominantly low performance. Thanks to new formulation approaches using high-quality acrylate polymers, high-quality applications are now also achievable for this polymer class. Class 20LM/HM according to EN 15651-1 and XS1-3 according to Part 3 can be realized safely. Formulation approaches are shown as well as the performance parameters achieved. In this way, the newly developed acrylate formulations are placed in relation to various market products.
The route via waterborne acrylates also opens up the use of the biomass balance concept, with which the product carbon footprint (PCF) of the sealants can be significantly reduced. In the case of construction adhesives, this can even be combined with biobased polymers, resulting in a PCF of almost zero.
Based on these new developments, the industry gets a high-quality and at the same time cost-efficient solution to compensate for current material shortages and to counter the trend towards low-grade silicones.