by Ross Boseley »
Tue Jul 03, 2007 4:54 pm
Basically mate theres bagged backing plaster that you can get now thats just as good as sand and cement i'd personally use tough coat or hard wall you can get it from any builders merchant. If you still insist on using sand and cement then i'd use a mix of 4:1 make sure you add plasterciser to each mix you can add a shovel of hydrated lime to each mix if you like it does make it easier to use but if you get it on your skin it can really give a good burn so make sure you cover up properly. on old walls you should skim your walls the same day as you float them because like i said it's gonna dry fast.
Good luck mate if you need any more help feel free to ask again
Ross