Using silicone sealant on MDF type wood

[berty3000]

Hi all,

I have laminate flooring installed in hallway, 12mm thick. Two of the rooms it terminates at still need renovating, and the laminate floor has an exposed MDF type edge at these doorways where it was cut. I want to prevent this exposed flooring from absorbing moisture in case of a spill or if humidity is high during plastering etc.

Will it be ok to smear silicone or sticks like along that edge, or could there be some kind of adverse effect? I do not want to damage the flooring I've had installed. I've tested a clear silicone and sticks like on a spare piece of flooring and noticed it has gone dark underneath as though it is wet. See photo.

Thoughts?

 

[chirpychippy]

Just wrap the end of the board in gaffa tape maybe five times, that'll protect it.

 

[berty3000]

Just wrap the end of the board in gaffa tape maybe five times, that'll protect it.

I've done that previously and it ends up peeling off as people walk over it and so on. I like the silicone idea as it seems like sealing the plank. Just not sure if that, or sticks like, would cause some reaction or swelling.

A comparison would be if it is ok to put these things on MDF?

 

[foxhole]

Foil tape