What is with this sign?

[Jean Shimp]

A local apartment complex called us about replacing their pool rules sign. The photo shows the condition of their current sign. The letters are raised. I'm not sure what material the sign is made out of. On first glance it looked like CNC routed HDU. But looking closely you can see that the letters are too sharp for a router bit to have cut them. I am thinking this sign was done by a laser? What is happening to the letters? They have chunks falling off. It doesn't look like birds or insect damage.

 

[Texas_Signmaker]

maybe kids picking at it

 

[DL Signs]

They're probably just flat cut PVC letters, companies like Gemini sell them. PVC isn't really the best for outdoor use, and it's probably in the sun all day. They get brittle, anything hits or picks at it and they fall apart.

If they want the same style, go with the flat cut metal letters, a bit more, but they won't have to keep replacing them.