I'm not sure what BLO is ,but assume it's an oil ,based on the weeks lag time ,I would not think paint would not adhere good ,and flake or peel .Side note ,When ,I was a Boy my mother ,thinned oil based paint w/ oil based fly spray ,before painting picnic table ,kept the flys at bay all year,The only difference was it was mixed in to the paint ,not trying to paint over it .I'd think that would make a difference ,Purely a guess on my part !