How can use kstone solid surface adhesive.
Cutting two pieces Same color sheets.
Using carving machines make same edge on these two pieces sheets.
Put our solid surface glue on these two edges. and Use A or F clamps to fix these two sheets together. and waiting for 20mins in summer, and more 30mins in winter. Then, It will be solidified
Polish full solid surface countertops. by 180#, 360#,600#,1200#