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the next part of the job will be to paint the render... Question would you apply gradually thicker coats of external paint to help it absorb into the render or just put on several coats from the can> I have read 1st coat at 40% paint then 80% then neat.? what do you think? thanks.

Thanks for each of your advice, im not in the building game but do appreciate the obvious skill to adapt and interpret different situations. I know the top coat needs to have less cement and that it needs to dry out slowly. I have taken what has been said and put a 5:1 top coat on to a wet...

i put in 100ml per 10litres as it said. scratch coat is hard. im thinking the 4:1 should have been 5:1 as earlier advice and to keep it covered and go back and spray to keep damp over several days after finishing thanks

ok thanks, ive obviously gone the wrong way, i understood more cement in the mix to be stronger, il do a test area at 5:1 and let it dry slowly. thanks for your help.

sorry i mean not sharp sand or very fine. maybe its dried out too quickly, its not consistent maybe i should have kept the work damp for days after?

hi all, external wall of breeze block, successful scratch coat dried and suck perfectly. 2nd coat initially at 4:1 after drying came away from the wall in sheets when dry. I thought the sand cement mix was not strong enough so re-did again 2nd coat at 3:1 but this is also starting to sound...

thanks people

You're right its not rendered just painted. Its the same material as far back as you can see, also you can just see the edge of a steel bar. see new close up pic. Just not sure if it needs replacing? but will get some people out to have a look. thanks

thanks for that. no doubt you know your stuff in your profession but you come across as a joker. this dilutes the credibility of your message, this could be important someday. aprreciate your valuable input, the lintel is cracked and its not render. i think il get some builder quotes, maybe...

Sorry new to this, whats SE?

hi, looking for some advice on cracked concrete/steel lintel on a 1948 house. 18 months ago there was a crack about 2.5 feet long running horizontal 2 inch from the bottom of the lintel, this was picked up on the top survey when i bought the house as general movement and not seen as a problem...

I must say i was going to put 2 thin coats on first, but i guess 1 will do it cheers for the advice chris :)

Hi I'm looking to paint a new rendered wall. I see so many flakey old rendered walls where the paint has not lasted. I'm going to dilute the paint and put on 2 thin cotes then 1 top coat, but is there anything else i can do or paint additives that stop the paint coming off. Also how long would...