Starboard is very slightly textured. It also is just about impossible to glue. 5200 won't work believe it or not!
ABS is a completely different material.
Here is something from their website.
King StarBoard®, King StarBoard® ST, King ColorCore®, King ColorBoard® and King CuttingBoard® can not be glued using standard adhesives. Products like 3M’s 5200 work well as a water sealing caulk but will not adhere King StarBoard® to itself or other materials in a permanent bond. It is preferable to mechanically fasten or weld King StarBoard®, but when an adhesive is necessary you can use a product called Lord 7542-AB or 3M’s Scotch-Weld DP-8005. We do not represent these products, make any claims about their abilities or accept liability for them.