Finishing a DIY desk (Pics inside)

Here's a lightweight wooden door that I have converted into a desk.

I like the 'unfinished' look of it, however - moving my computer around is causing the surface to scratch very easily, spilled liquids cause stains, and so does any dirt from my hands.

I would like to sand and apply a protective finish the surface, but need help choosing a product that will look natural and matte. I also
want an inexpensive option.

From my research I am hearing good things about Tung oil. Although I'm a scared that this could give the wood a mild glossy look that I'm trying to avoid! Is there a finish that looks 'Unfinished?'

What would the members of this forum recommend?

Thanks

Kez

http://www.daikurebayashi.com/desk/IMG_9563.jpg

http://www.daikurebayashi.com/desk/IMG_9565.jpg

Hello kez, I read on another thread that any surface is only as tough as the underlying timber.

If your door timber is soft and scratching now, I don't think that there will be too much available that will make it scratchproof, but I would recommend giving Cabots Danish Oil a go - it penetrates the timber and gives a fairly tough non glossy finish that can be rejuvinated with another coat in time. A few coats of that should see you going for a while

The only finish that will really do anything to toughen up the surface is epoxy.

If you want protection from spills and very easy application, then the wipe-on-polyurethane by Minwax (paint section in Bunnies) comes in a satin finish.

With the epoxy, if you wanted a satin finish, you'd have to rub it down with steel wool or a scotchbrite...not sure how that would really look!

However, the forum sponsor's cross-linking shellac might also keep you happy if you like the unfinished tone of the wood - it'll add some toughness!

You could apply a few coats of a mat finish polyurethane which should offer you some protection to the timber, it will certainly prevent moisture or spillages seeping into the surface and causing it to stain. Maybe a good idea to sit your computer on a mat of some kind to prevent the scratching when moving the computer around.