i phoned the rep yesterday and he told me what most have told me,you cant put monorex on concrete panels,you cant use eml,you cant go over painted surface unless you use parinter,i asked about why i cant use sbr slurry his answer was only paint will stick to paint and it wont work,which is a load of rubbish,so i said i would put a scratch coat of sand/cement on first with fibre mesh,leave to dry for a week and then monorex over it,he told me you cant put monorex over sand/cement because monorex is to strong to go over sand/cement render,so everything we intended to do we cant according the rules,as the client is still adamant he wants the monorex finish to match the house, we are going ahead as we got no other options due to the backgrounds, so we are going ahead with discing, rendagrip/mesh,plastic beads and monorex,the client understands the circumstances if it goes all wrong he is paying me anyway,i am old school and rendered a few sectional garages and gone over sound painted surfaces with sand/cement and discing and sbr/ mesh method over the last 30 yrs and no problems of come backs,i only asked about parex because i am not familiar with it,i suppose the ones who give the harsh answers on the forum are the ones who know the answers by reading the manufactures instructions,so when a question comes up on the forum they jump straight in with the theory to look good, you got understand to gain experience you got to make mistakes,thanks all