Originally Posted by ScotY
Thanks again, Dave. I'll give it a try and see how it goes. I understand SPI epoxy is the best stuff to use but, unfortunately, I can't get any and had to "settle" for Dupont. Is it really that bad to sand? I was thinking it might be better to spray a urethane right over it since that will sand easier.
The DuPont, probably DTM, really can't be sanded unless you are outside of the recoat/topcoat time of 24 hours. Then you have to scuff and recoat with epoxy. If you use a 2K urethane primer on top, you should get it on pretty fast - i.e. within the 24 hours. Do you have the tech sheet from your supplier? They were on line but I just checked and they are "temporarily" off line - and I believe being rewritten. If you need a copy, give me a PM with your email and I'll scan my older version and forward.