I've been asked to make a 2X8 foot storefront sign; white background with raised black letters. The approach I'm considering is using Glacier White Corian for the background and cutting the letters from the same Corian and painting them black so I won't have to buy a whole other sheet. i'll either glue or screw these to the back. Couple of questions:

Will the black paint hold up well on the Corian? What kind of paint works best?

Should I be considering an alternate material? I checked with my local Corian distributor and was quoted $346 for the sheet. Not sure the customer wants to pay that price.

Tony