I'm finishing my new bench top with BLO. The top is three layers of 3/4 MDF with a maple skirt.

Several of the resources I've seen for using BLO say to apply multiple coats until the wood won't absorb any more. I've done three coats and the Maple seems to have had enough (no surprise), but the MDF just keeps sucking it in (not a surprise either). I know the MDF will be thirsty, but I find myself wondering if continuing to add oil to it is counter-productive. I did a third coat last night, and when I went back to wipe it off the MDF had sucked it all in. This morning, I put another coat on just the MDF, slathering it on thicker than usual, and an hour later the MDF was as dry again.

I worry that continuing to support this bench top's drinking habit might land it in a skid row drunk tank.

Should I call it done, or keep adding BLO until it's had enough?

D.