blog | edwards research

Continued from Part 1.

So the verdict is in.

Acrylic	Polycarbonate	Polypropylene

(Click for full size)

Polypropylene works the best.

It looks like the ghosting correlated pretty well with the water absorption numbers I listed last post. Also, its interesting to note that the low odor markers cleaned up much better than the bold markers did on the two clear plastics.

5 days later, this is how it cleaned up without any spray or cleaner:

Polypropylene Cleaned

Now, because the polypropylene was translucent, I was concerned that I wouldn’t be able to put a background behind it. However, since the polypropylene was thin enough, it turned out alright:

Polypropylene With Background

I’ll probably vary the color of the gridlines for the background to see which one works the best, but even 100% wasn’t too bad. In the picture, the squares are 1 inch x 1 inch and the line thickness is 3 points.

Next step will be ordering the full size sheet of the polypropylene (hopefully they’ll be able to ship it with some protective plastic covering), getting a background printed up (probably from Kinkos) and mount it to a backing board (I’m thinking MDF right now, but I might come up with something else.

Stay Tuned.

Update: The project is continued here.