hi all i recently done a post regarding which substrates to prime and which i dont have to prime...im a bit lost im gettin different answers.. i was told plasterboard i dont have to prime and fresh plaster yes i do have to prime but other people are saying i must prime plasterboard??? basically ive almost completed a job with plasterboard which i didnt prime but i did use a self priming adhesive which im now being informed on doesnt mean i donnt have to use primer...there sems to be different veiws on these things can anyone clarify please? also im laying a glazed matt porcelain floor,,,,not polished shiny porcelain which im getting conflicting points on some guys are telling me to seal it whilst others advise me i dont have to seal porcelain unless its polished..can anyone clarify this also please..much appreciated and thats my moan for the day:hurray::joker: