Gloss on MDF

dUnKle · 07-02-2008, 2:18 PM

In process of making new equipment stand - cut all pieces to fit and glossed the legs leaving the two big peices of MDF for another time.

The other half thinking was helping has come and glossed both pieces for me perfectly - nice clean tidy finish. However ...................

No undercoat was put on. Now how will this effect things ? Is it ruined ? Will it ever dry ? Can it be fixed

FunkyMunkey · 07-02-2008, 3:59 PM

I glossed an MDF door at my parents place without undercoating, and the paint gradually got absorbed by the MDF and eventually started to peel.

dUnKle · 07-02-2008, 4:01 PM

Quote:

Originally Posted by FunkyMunkey

I glossed an MDF door at my parents place without undercoating, and the paint gradually got absorbed by the MDF and eventually started to peel.

Yeah that seems to be whats happening here
Looks like may be ruined - not sure if another coat would help

FunkyMunkey · 07-02-2008, 4:27 PM

I doubt it, tbh. You live and learn...

dUnKle · 07-02-2008, 5:00 PM

Quote:

Originally Posted by FunkyMunkey

I doubt it, tbh. You live and learn...

Guess I could try letting it dry - rubbing down and then undercoating first

FunkyMunkey · 07-02-2008, 5:08 PM

Yeah, I guess that might work

jolly · 07-02-2008, 5:14 PM

Quote:

Originally Posted by dUnKle

Guess I could try letting it dry - rubbing down and then undercoating first

I think that will work, the cut edges of the mdf need special treatment

dUnKle · 07-02-2008, 7:26 PM

Seems as if one side at least may be ok - forcebly run hand down it and its smooth and dry with no signs of peeling - the other side though is a mess

ver · 08-02-2008, 9:06 AM

any photos? I was tempted to gloss paint mdf but didnt think you could get a smooth finish. was it just painted on?

Also read you can get the bits of mdf lacquered

MarkP80 · 08-02-2008, 9:13 AM

Bit late for dunkle, but for MDF I would recommend you always paint with special MDF primer first. MDF is very absorbent, especially on the cut edges, and you can easily make it swell. The proper primer seals this, ready for you to paint as normal. You can buy it in B&Q.

Cheers,
MarkP

dUnKle · 08-02-2008, 10:25 AM

Quote:

Originally Posted by MarkP80

Bit late for dunkle, but for MDF I would recommend you always paint with special MDF primer first. MDF is very absorbent, especially on the cut edges, and you can easily make it swell. The proper primer seals this, ready for you to paint as normal. You can buy it in B&Q.

Cheers,
MarkP

LOL

I have a big pot of it already - just a shame was beaten to it

Going to try sanding it all down and starting again

Da_Rude_Baboon · 08-02-2008, 2:36 PM

Can you not seal MDF with a PVA and water mix?

jolly · 08-02-2008, 3:15 PM

Quote:

Originally Posted by Da_Rude_Baboon

Can you not seal MDF with a PVA and water mix?

I believe you can