gooseodyssey
New Member
I'm rendering an internal brick wall as part of a DIY project.
- The walls are very uneven. Can I apply more than one scratch coat to help straighten out the wall? I started with 4:1. Do I have to weaken the mix to 5:1 for the next layer, or can I do a second scratch of 4:1 and then do a 5:1 top coat?
- If I float and sponge the top coat can I then have the option of skimming over it in the future, or will the skim plaster not stick?
- The render seems to dry very fast on the wall. I've tried soaking the bricks loads but maybe I need to do more. I brush on a 3:1 water and SBR+ onto the wall a few minutes before rendering and I have a splash of SBR+ in the mix. I also put a splash of plasticiser. Does that sound good? Maybe I need more water in my mix too?
- I bought a scarifier from Wickes with the flat wide teeth but it often seems to struggle to recess into the fairly firm render. Do I need one with thin pointy teeth instead?
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