Thanks!
Yes Celtec is another brand of PVC and we spray, roll, or fill paint it depending upon application, We do alot of routed down lettering on panels for monuments or directional signage. I like using PVC over MDF because of the weight difference but it usually requires a backer. I'm just optimistic about MDF and the longevity outdoors. We use the Exterra MDF and also have problems with finish on these. Signfoam 3 is what we use as well, however we recently received a sample of Designboard to test, the problem in the past has been the competitors board required alot of filling to smooth out. Hopefully they resolved this, we'll soon find out routing that sample. We use signfoam for dimensional letters and both PVC and signfoam for flat cut letters. We also use Polycarv on occasion for routed down panels on monuments. We just started using MDF a few months ago so nothing has came back and I hope it doesn't. This is the reason for my inquiry. I have seen your posts and checked out your website, very impressive work! I'm not satisfied unless I know we're using the best substrates for each application and I certainly want to stay away from any that will come back and bite us. Thank you for the response Dale!
Mark