January 24, 2016
I bought nearly every block eraser that Japan makes in a recent shopping binge.
As a math major, I need lots of erasers as it is, but I also wanted to determine
which ones worked best for my needs. I tested all of the erasers on three
different types of pencils: a Pilot Eno color .7, a Pentel graphite .5 and a
Pentel color 2mm, and then on three different paper types: Rhodia, an index
card, and then plain old American junk copier paper.
The type of paper wound up not mattering with the performance of any of the
erasers. What mattered was what they were erasing.
So with that established:
The Ain performed adequately with .5 and .7 leads. It was slightly better than
the Tombow Mono, and did much better than its American cousin, the Pentel
Hi-Polymer, which is strange, because I thought the Ain and the Hi-Polymer were
the same. Guess not.
I didn't notice much dust-gathering going on compared to what some of the other
Ironically, the Ain failed completely with the Pentel 2mm lead. It seemed to
take off a layer or two of the color, and smear the rest around. Just awful,
but, hey, that might prove useful as a blending device for art work, for those
who do that sort of thing. It's not what I need from an eraser, though.
Perhaps I got an older eraser, but I'm not about to waste anymore money on this
line to find out.