Because King StarBoard® sheet products are designed to resist water and grime, they cannot be painted and the use of adhesives is not recommended.
Can you sand StarBoard?
The edge of StarBoard can be sanded with an orbital sander or hand sander to help smooth out a jagged edge. We DO NOT recommend sanding the surface of StarBoard! Finishing the edges of StarBoard with a router is easy and can be achieved by using a standard roundover bit.
How do you polish a StarBoard?
Cleaning components, parts and accessories made with King StarBoard® outdoor polymers is very simple: To clean everyday dirt and stains, use a cleaner such as Soft Scrub® and a nylon scrubby or stiff nylon brush. Scrub lightly; excess force can mar the finish.