Hi y’all I’ve done quite a bit of plastering in lime, in our 200 y.o. house but am about to attempt my first bit of plastering with Thistle Multifinish, over a plasterboarded stud wall put up around a new ensuite, by a local builder friend. I’ve put scrim tape over the gaps between the boards but have some pretty big (10-15mm) gaps between the edges of the boards and the new lime plastered external walls and also the ceiling. Will I be able to just push plaster in and fill gaps this size while plastering (as I could with lime) or will I need to pre-fill with something? If so, what’s good?
I use paper corner tape for that. Tape prior to plastering to stop it cracking. Side wall I use tungsten scraper so tape sits below surface level when fitted
Paper really for corner but some use scrim. I have but its different. Will work though if you can use it OK
Thank you. I ended up pushing some lime plaster into the gaps (quick (overnight) setting stuff) as I had some left over from previous work. Should give a decent solid base for a skim of Multifinish.