Pre Cut Sign Panels

If this is indoors, acrylic would be fine. If outside, at that size, you'd still be good, but could upgrade to poly carbonate if you'd like.

At that size, just about any sign supply house will have it. Glantz..... ??

 

Yes, many do. Your needs would be considered a quarter sheet. Many places will offer 1/4..... 1/2 or full sheet prices. You'll hafta ask your local vendors.

 

Hardware stores sell small acrylic too...and they will cut it right there on the spot. It's where you buy glass.

 

The stuff they sell, generally isn't sign white type material. If you go that route, be sure to check if it's translucent or not. There are several types of acrylic with varying degrees of opacity. You need a lotta light to be able to pass through without allowing you to see the lamps within 4 inches of the face creating hot spots

 

Home Depot carries sheets that size, but it depends what you need color and thickness. If you are doing a menu board face exterior you might be looking at polycarb.

 

At that size, it's not worth bothering with at all. Between chemicals, elbow grease and swearing time, you could buy 3 new pieces of substrate and still come out ahead.

Denatured alcohol is about the least harmful.

 

Try brake cleaner...but test it first,

 

What Gino said, but, rapid remover if you just have to.