Porous MDF waste board?

[Toddy]

He was pulling your leg as mdf is non porous as such that it would let you vac through it to hold your job,(joiner to trade) lol

[AdCNC]

He was pulling your leg as mdf is non porous as such that it would let you vac through it to hold your job,(joiner to trade) lol

MDF is quite the opposite to none porous, unless i must be buying "special" MDF lol

[Jonathan]

Is there such thing as LDF (i.e low density..), that would surepy be more porous?

Couldn't you mask off the open areas of the bed with bits of paper. Just have a stack of A4 paper and distribute it to cover the gaps.

[tumutbound]

Using MDF as a spoil board on top of a vacuum table is quite common (check out cnczone.com or woodworkforums.com).
I seem to recall a recommendation of sealing the edge of the spoil board with paint.

Standard MDF is certainly porous.

[quickcut]

A wrap door machine uses vacuum to pull the pvc covering over the door . mdf is indeed porous. not sure about hdf though

[kevinb]

just came across this while browsing

http://www.cncroutershop.com/product...ificial-sheet/

[Troop]

I don't exactly know if this has been resolved however as Toddy said about MDF being non porous i believe he has had the sherbets.
I use 6mm and 4mm MDF and this is perfect for Vac pump.
I am currently looking for a different material that is more porous as using VillMill material is a good extra for any wasteboard.