I’m looking for tips on how to seal the edges of borg bought MDF to achieve a glass smooth paint finish. I’ve heard of mixing yellow glue & water. Are there alternative methods?
I’m looking for tips on how to seal the edges of borg bought MDF to achieve a glass smooth paint finish. I’ve heard of mixing yellow glue & water. Are there alternative methods?
Please help support the Creek.
"It's paradoxical that the idea of living a long life appeals to everyone, but the idea of getting old doesn't appeal to anyone."
Andy Rooney
I've used lightweight joint compound several times and it seems to work fine. Just smear it on with your finger or flexible plastic spatula, let dry, then sand. Inspect, repeat where needed.
John
"A hen is only an egg's way of making another egg".
– Samuel Butler
+1. Shellac is perfect for this.
I’ve tried Zinsser spray on shellac and it never has worked for me, maybe I needed more coats. I’m going to try the joint compound and see if that works on some small signs for my daughters church.
Please help support the Creek.
"It's paradoxical that the idea of living a long life appeals to everyone, but the idea of getting old doesn't appeal to anyone."
Andy Rooney
The spray shellac, while handy to have around, has never really been a replacement for Seal Coat in my shop. I use it for many things. A shellac primer like Zinsser BIN may do two jobs at once for you prior to painting.
"A hen is only an egg's way of making another egg".
– Samuel Butler
Something that's now on my radar for this kind of thing as well as grain filling on guitar bodies is Z-Poxy.
--
The most expensive tool is the one you buy "cheaply" and often...
I have used Zinsser's Sealcoat and wipe-on poly.
Ken
So much to learn, so little time.....
I can't answer for Glenn but I've done the same. Shellac sealed the edges but it took multiple coats. Just kept at it until it looked right.
And the magical BIN primer also worked.
Don't sweat the petty things and don't pet the sweaty things.
Back when I was making painted pedestals all the time, regardless of the material - ply, solid lumber, MDF - my process was the same: assemble with carefully aligned joints, either joint compound or Rock Hard Water Putty, sand, KILZ, paint.
"Live like no one else, so later, you can LIVE LIKE NO ONE ELSE!"
- Dave Ramsey
If you are painting, I think it's easier to veneer tape the edges. I haven't seen any in a long time but they used to make a paper tape that gave the edge the same surface as the face. If you are putting a clear finish on I just use number of coats of sealer.
I use Bondo or a similar type of body filler - the brand is not that critical.
It works well on plywood too.
Regards,
Phil
I use shellac for my MDF jigs