They should be held down & preped with Festool rotex in aggressive mode with 40 grit paper then 60,80,120 then sprayed with a coat of Zinsser bin followed by your usual finish! Just to remind them it may take a little longer to do it right but makes life easier for the next decy https://twitter.com/decoratorsforum/status/1022559795600154624 …

They should be held down & preped with Festool rotex in aggressive mode with 40 grit paper then 60,80,120 then sprayed with a coat of Zinsser bin followed by your usual finish! Just to remind them it may take a little longer to do it right but makes life easier for the next decy https://twitter.com/decoratorsforum/status/1022559795600154624 …