Bill-
I break it down as follows-
-Smyth sewn requires binding of 16 page signatures as it is sewing "through the fold"- or even 32 pagers
You can smyth sew coated paper or uncoated papers.
-Side sewn binding sews "through the side" about 1/4" in from the spine edge. It works well for book thicknesses
up to about 3/8" and we can side sew through single sheet stacks (from digital print streams) or folded signatures.
Again, coated or uncoated papers are OK- limitation is the thickness.
- Double Fan adhesive uses a poly vinyl acetate glue (PVA) which is a durable and flexible glue. I do however,
recommend it for usage on uncoated papers ( and for thicknesses from 1/4" to 2-7/8") This method has minimal gutter loss and lays flat very nicely in each spread.
This leaves us (or you) with situations where a book block is too thick to side sew or on coated paper. The best option
at this point is then PUR Case perfect binding. Although I mention it last- it is a very good solution and definitely,
not the last choice. We can PUR case perfect thickness from about 3/16" up to 2.5" and will work with folded
signatures or single sheet stacks.
Feel free to call me Monday at the bindery now that you have my number!

MP