sealing skins before bagging?

i’ve ready probably every thread on here about bagging/compsands 3 times over but didnt find much about sealing the skins with a brushed layer of epoxy before bagging?

 

I planned to seal the foam on this next board and the skin too to stop resin from leaving the 2 oz cloth and into the wood

 

 

thoughts? experiences?

what type of skin material?

what type of build (compsand/tflex)?

 

Yes.

yes compsand...

 

and nice to know benny i got impatient and couldnt figure any disadvantages so I already did it ;)