Tom Brown
06-23-2006, 08:31 PM
I'm working on an MDF project that I want to paint. I'll be using DuPont ChromaBase black and 7900S clear.
I've always covered with wood veneer in the past. I'm OK with a paint gun so I thought it would be no big deal but something is happening that's causing the joints to print through.
I built the boxes, filled the joints, sanded everything perfectly flat, primed... sanded out with 600 grit and let stabalize for a couple of days before shooting color.
When I came back, I could see some of the joints, so I filled again, sanded back with 220, primed... sanded out with 600 grit... and let sit for a couple of days again.
The joints are back.
It's not that they're huge caverns that look hideous but I want the project to look perfect. It's going to be painted gloss black (at least, mostly) so it won't be very forgiving.
I've painted lots of fiberglass and metal in my day so this has thrown me for a bit of a loop. I wasn't expecting it.
Some of you guys must have run into this. I would appreciate any advice you might offer.
The next thing I'm contemplating is shooting DuPont's 1144 epoxy filler/primer. That seems like gross overkill for a half dozen speaker boxes and a few stands, though. It's all for indoor use.
I've always covered with wood veneer in the past. I'm OK with a paint gun so I thought it would be no big deal but something is happening that's causing the joints to print through.
I built the boxes, filled the joints, sanded everything perfectly flat, primed... sanded out with 600 grit and let stabalize for a couple of days before shooting color.
When I came back, I could see some of the joints, so I filled again, sanded back with 220, primed... sanded out with 600 grit... and let sit for a couple of days again.
The joints are back.
It's not that they're huge caverns that look hideous but I want the project to look perfect. It's going to be painted gloss black (at least, mostly) so it won't be very forgiving.
I've painted lots of fiberglass and metal in my day so this has thrown me for a bit of a loop. I wasn't expecting it.
Some of you guys must have run into this. I would appreciate any advice you might offer.
The next thing I'm contemplating is shooting DuPont's 1144 epoxy filler/primer. That seems like gross overkill for a half dozen speaker boxes and a few stands, though. It's all for indoor use.