What Materials to use Ply or MDF ? ? ?

[toylander]

Hi to all,

My question is which/what are the best materials to use for making the body tubs?

I've built a Toylander2 and used birch faced ply, which left me with a lot of rubbing down at the painting stage to remove Grain, and filling and rubbing on any edges that were rounded off.

Has any body used MDF, and encountered any problems ? does it need to be thicker ? does it suffer if it gets wet or when completed is left in the garage?

[markh15]

Hi James, and Welcome,
I used 12 mm ply for my T2, and like you had alot of rubbing and filling to do before getting a smooth finish.

I am currently building a 1/2 scale 'Mini Moke', and am using both 12 mm ply (for the Inner Panels), and MDF for the 'High Finish' panels.

I would warn you that, although the MDF gives a very nice, clean edge, and is easily worked with either sander or router, if you drop any of the MDF panels (as I have done on several occasions), you are very liable to damage them! This manifests itself as a 'Flairing' of the board, especially if dropped on a corner!!

I have found 'MDF Sealer' in my local DIY shop, and intend to use this first, then cover the panels in slightly diluted PVA, in an attempt to seal any moisture out of them.
I (personally) wouldn't have thought that moisture would be a major problem, once the body tub is painted in it's gloss 'Top Coat', asd this should provide adequate protection.

Providing that you don't get the panels soaking wet, minor moisture (in the air) shouldn't trouble you unduely.

Hope this has helped you.

Keep Busy,
Regards,
Mark. (resident nutter)

[brian]

Hello Mark,

you may well find that the MDF sealer is based on a dilute PVA mix so if you have not all ready purchased the proprietory sealer, go straight to dilute PVA.

Regards,

Brian.

[markh15]

Hi Brian,
Thanks for the information.
That will doubtless save me a quid or two!

Keep Busy,
regards,
Mark.