top coat over painted render

[User___removed]

went to look at a job 2day,bricky`s rendered a gable end and made a right mess of it!can a top coat be used(1.5 grit)over the painted render to tidy it up?

 

[theblones]

if its flat yes, if its not then you need to skim a tight adhesive on it first

 

[User___removed]

ideal.how many tub`s would i need to do 100m2?

 

[User___removed]

also,can the top coat go over a un painted surface?would it have to be primed first?

 

[plasterjfe]

depending on the paint bobby you could have adhesion issues but I guess it would be a slim risk. do you know what paint it is?

 

[theblones]

about 8 mts 2 a tub

 

[User___removed]

i could`nt tell ya what paint it is.prob standard external paint.what would be the procedure in covering unpainted s&c?

 

[plasterjfe]

I had a job like this and parex were backing off a little cos the exterior paint was an issue but they never said it wouldnt work they just said its possible and it would be my choice. there is a product called parinter now that is for painted surfaces

 

[User___removed]

where`s the best place to buy top coat?spoke to mitch at direct building products 2day,he say`s the top coat is no good for painted surfaces,but then he`s a salesman.

 

[Gibbo]

marmorit in avonmouth bristol or sas in exeter

 

[plasterjfe]

if you have un-painted areas just prime and texture for painted areas like i said there could be an issue with adhesion and ,ayb e you should be careful, if you do go over the paint maybe use a silicone texture it will prob stick better

 

[User___removed]

ok chaps.thanks