Type XI sheeting on post mounted Street Name signs

[mjb2002]

From what I've read, Type XI sheeting is allowed on Street Name signs. However, no municipality that I know of in my area has used such sheeting for the signs.

Have any of you ever spotted Type XI sheeting on Street Name signs?

[Scott5114]

What's Type XI sheeting again?

[Alps]

It's the one that's had no number for the last several years. "DG cubed" is the propietary 3M product. I forget the technical term. It's one of the ones that looks like a rainbow when it's sunny so no one wants to use it.

[Scott5114]

Hm. Don't think I've ever seen it. Then again, I suck at distinguishing sheeting types. My eye tends to quantize sheeting into "silver scotchlite", "engineer grade", "high intensity"/"that stuff with the honeycomb mesh".

[agentsteel53]

It's the one that's had no number for the last several years. "DG cubed" is the propietary 3M product. I forget the technical term. It's one of the ones that looks like a rainbow when it's sunny so no one wants to use it.

is it the same as "prismatic high intensity" sheeting?  which everyone seems to be using now.

[agentsteel53]

Hm. Don't think I've ever seen it. Then again, I suck at distinguishing sheeting types. My eye tends to quantize sheeting into "silver scotchlite", "engineer grade", "high intensity"/"that stuff with the honeycomb mesh".

oh, silver scotchlite is engineer grade.  I had them incorrect when I first told you about them.  the greenish stuff is "engineer grade silver scotchlite" and the white stuff is post-1979 "engineer grade scotchlite".

non-engineer-grade scotchlite is the rough beaded stuff with no clear protective coating on the front.  very, very rarely seen in circulation these days.  it was invented in 1938.  engineer-grade (with clear protective coating) was invented in 1950.

[vtk]

It's one of the ones that looks like a rainbow when it's sunny so no one wants to use it.

You mean like my shiny sign illustrations?  My avatar even has that effect (and I'm not talking about the vertical-striped background).