PARALOID KM-1 is an acrylic impact modifier designed to provide outstanding impact and rheological performance properties. This unique powder modifier has a core shell structure that offers improved impact strength efficiency across a range of processing conditions. PARALOID KM-1 yields consistent surface finish, low post-extrusion shrinkage, reduced plate-out, and high impact strength. It also provides good resistance to compaction and unparalleled weathering performance. These attributes make PARALOID KM-1 well-suited for applications in the advanced materials industry that require durable materials able to withstand impacts and extreme weathering. PARALOID KM-1's consistent properties allow for uniform material quality without adjustments to formulations. Its weatherability allows advanced materials to maintain high performance even after long term outdoor exposure.