Like other plastics, dust and other small particles will stick to acrylics due to the static accumulation in daily service. It causes eventually some issues against electricity safety besides appearance.,
To prevent the static accumulation on acrylics in daily service, people are used to apply coating layer on acrylics or add some anti-static composites in the material itself.
In this case, the thermal deflection and weatherability properties of acrylics could be influenced.