I like the posters. However, like Z, the problem I've had with customers at the sales counter is arming them with too much information and too many choices. It tends to prolong the encounter. I've fared much better have actually samples under the counter to pull out as examples to direct the sale. Similarly, a color swatch poster is hung in the production area and only brought out to make final choices.
As an example, I needed to find a smokey green yesterday. I had to go through three fan books to find a match that the customer approved. Looking at your color chart, I don't see much for greens and and what you do have gets to darker shades of basic colors rather quick. I would think a workflow using a specific color system, like Pantone, would be a more effective display to have for both customer review and as a reference for production.
My fear with your CYMK color chart would be having the customer look at it and ask, "are those the only colors you have?" I do understand that it's for internal use and preview. But, I'm still a fan of using PMS spec colors in CYMK workflow. It keeps me from getting bogged down in the minutia of adjusting four color swatch sliders to match something, rather than choosing a color from my color guide.
Perhaps a more effective sales tool to showcase the capabilities would be a print showing
the color gamut. It would show a broader range of colors. You would also be better able to discuss the capabilities of your printer and explain why what the customer sees on their computer monitor and the print will be different. That, and it looks like science. Customers are impressed with people that know science.
I waffle with the substrate poster in the customer area. It would be
awesome on a website. Great illustration, great content, and it really works well as a reference for those searching for information about signs. ...and then link those images to photos of signs you've created ---
über awesome!
The marketing side of me would suggest that you modify the descriptions to something your typical customer understands. Polycarbonate, for example, would read something like, "Perfect for illuminated signs and sign frame inserts" - "Exceptional Durability." Push the specifics and generic stuff --- like sizes -- to the bottom. That stuff is only important when you close the sale. Get the sale first by promoting the benefits of the product.
As is, I'd think a typical customer would lose interest quick reading .060, .118,....... zzzzzzzzzzzzzzzzzz. Changing that up, I would be more inclined to hang it in the customer area for reference.
And to steal a line from the movie,
Glengarry, Glen Ross: ABC ---
A - Always, B - Be, C - Closing. ALWAYS BE CLOSING!
...even with what you hang around the shop.
buuuuuuut, that's my .o2