I would rekin theres more suction onto bonding than boards and no blebs on boards ??? We have been tryin to suss out what causes them , been floating out walls and skimming lately same day just been straightening up with the bonding ( wonky walls) but been going over the full lot to keep suction the same . Any one else have any ideas why it blebs ?? Got us puzzled lol
Get your timing right means no blisters.