We went counter top shopping this past weekend and was looking at Quartz counters. I asked about creating an L shaped counter and the rep showed me one in the showroom and I saw a seam! The counter in the showroom was a very busy style...there were colored swatches of materials throughout. Perhaps that was a hard pattern to make an 'invisible' seam.
The counters we picked was essentially a white counter with a little bit of grey and brown in it. Imagine swirling a few drops of color into white paint... Maybe this will be an easy one to hide the seam.
Anyhow, what is the technique to hide a seam? Make sure the joining compound that you use is the same color? Is there any sort of blending that we can do with the joining compound so that it blends with the left and right pieces of the counter?