This actually helps me out with my SCAR build. I was not aware of the primer filler which I am sure will come in handy as MDF doesn't sand so smooth. I though alot of coats of primer would do it but will try the filler out to save on time. Thank you for the info bro
Yes this should help you with that.
One thing that I would recomend when paibting the mdf is to first give it a "very" thin light coat of primer, be sure to let it dry thoroughly, then one more very thin coat of primer, and let it dry thoroughly. Mdf is known for sucking in moisture and swelling dramatically. If you apply a couple thin quick coats before a heavy primer job, it will seal the mdf causing it not to swell.
Sorry Thorn, didnt mean to hijack!!
Cheers,
Cereal
That's cool I haven't had the chance to work MDF in this way yet.
Yeah i was going to give it a water+PVA soak to seal it. The MDF sucks up the water pulling the PVA into it. I have been doing this already because when you sand down passed the first 2-3mm the MDF is not as compact and a little loose so it needs to be hardened for detailing and sanding it smooth.
Also sorry here too dude. If we need to discuss more will move it to my SCAR thread
That's cool I'll have to play with this sometime. Now that I know you are talking about particleboard, Yes I had to remember this weekend where I'd seen MDF. Now the question is I've seen in 3 different particleboard formats here in MI.
1. Low def, high def, wood particle. Reg. particle board
2. Low def, high def, Paper particle. MDF Comes in a(LD) light brown and a (HD)Dark brown.
3. Low def, high def, plastic particle. Trex
side note: I'm not counting chipboard, with would be useless in this app.
I know you're talking about #1 but what def are you using? I know here that the high def( HD is fine wood particles, higher glue rate, and higher compression. ) cost almost twice as much also. But the #2 paper format would probably tool better then the LD #1 and be cheaper. Just my 2cents :cool
The next time I go to the lumber yard I'll look at all the labels on the different types of particleboard and get the names IE. MDF, ect.
Sorry I'm still learning here. But I'll try to keep up.
Dang by time I get done here at the 405th you'll probably have me out back building Mech's :cool