17 replies to this topic

[smudger]

Whats needed.

[Timtom]

Paint.. MDF..

Mdf tends to soak up the paint alot.. so u have to keep coating it..

[Rodders]

I would use lots of thin coats of spray primer for a base and start from there.

Edited by Rodders, 04 March 2007 - 02:44 PM.

[Steve@RetroDash]

MDF primer


http://www.internati...mp;surfaceid=48

Edited by Steve@RetroDash, 04 March 2007 - 03:20 PM.

[Rodders]

MDF primer


http://www.internati...mp;surfaceid=48

SMART AR5E

[Steve@RetroDash]

Genius thats what I am *

[smudger]

i thought about mdf primer and then a primer builder followed by paint.

Any reactions?

[Steve@RetroDash]

that should be fine, to be honest I rarely use mdf primer because it costs so much. A good couple of coats of acrylic primer works fine. sand the mdf with 120 then 240 grit and use a tack cloth to remove the dust. then away you go.

have a practice on a scrap piece. you can get it as smooth as glass but it depends on the time you have available. Use wet and dry between coats of colour.

[smudger]

its to do a boot liner kit in same car colour.

Time is not a problem, i just wondered if MDF needed a sealer first.

[Steve@RetroDash]

its to do a boot liner kit in same car colour.

Time is not a problem, i just wondered if MDF needed a sealer first.

Ideally yes but in practice probably not. If you have the budget then use mdf primer as its quicker to get the next layer of paint on but you can still get a good finish without it.

you could always use shellac as a base coat, I use this on furniture to seal the wood before a finish is applied. This stops any contaminants from surfacing through the finish.
http://www.axminster...amp;src=froogle
http://www.axminster...ealer-21180.htm
http://www.axminster...ealer-19767.htm

Edited by Steve@RetroDash, 04 March 2007 - 04:32 PM.

[Bungle]

just use a watered down primer

[sillyface]

When I was a poor student I used watered down wood glue. Works well just so long you're only using water based paints on top.

Whatever coating you end up using, rememeber to wet & dry it to get a smooth finish before you start painting.

[Boab]

Just use a PVA sealer

[hlynur]

I cut the initial shape then used EVA glue rather than PVA to harden the edges, the gauge apertures and anywhere else that was vulnerable looking or needed further working to perfect the shape.

I then applied MDF primer and flatted off with 240 grit.

Finally a high build filler primer from Halfords was used before flatting with 600 grade wet and dry. You might need a different colour primer over the filler; depending on what you're top coat requires. One coat of cheapo primer is more economical in the long run than several extra coats of body colour.



Don't laugh at my crappy speaker wiring.

Edited by hlynur, 27 August 2007 - 02:26 PM.

[Tom Booth]

When I was at college making furniture, I used either oridnary laquer from a car auto supplies, or just PVA glue. When you use PVA thou, Brush it on , you get a lumpy finish that you have to sand off if you use something like a spreader.