Browse Forums Finishing Touch 1 Feb 15, 2017 9:46 am Hi Just looking for some advice on the best/cheapest way to resolve this... I am about to repaint the whole inside of the house, but tge problem is that the finish is currently very rough. It was just a painted cement render. I would like a smooth finish. So to be able to achieve the finish i could sheet the whole house obviously at quite a cost or attempt to add a skim coat. Do i need to sand the surface to get a key, apply some kind of primer or use a paint remover first? Then what product would work best - do i mix up a lime render and roll on and use a squeegee to get a smooth surface. Or trowel on and use a float? What lime render to use or what is the alternative? I did try using gyprock multi joint compound on a test wall and that seems to stick to the paint as is. It would mean sanding back though and hardly coat effective to do a whole house. Advice much appreciated Thanks Simon Re: Plaster skim coat over painted render 2Feb 15, 2017 10:36 am The problem here is that u will need a compound mix (niether 100% cementitious, nor 100% paint) but a compound which will stick to paint in a large format. Compounds like jointing compound are not ideal as the will leave flat sheen spots everywhere and u will wish u left it as is. If u dont want to remove all the paint, there is only one product i know of, and its expensive. DULUX ACRATEX ACRAPATCH FINE used as is without the 10% portland cement that they recommend on the lid (that is for patching and jointing external weatherboard prior to a smooth finnish). This is only available at a dulux trade centre or inspirations paint outlet. It will be more expensive to remove the old paint. Pergaps drylining is an option. Ppl ahouldnt paint rendered walls inside the house. Its a one way street! Re: Plaster skim coat over painted render 3Feb 15, 2017 8:31 pm rebuilder86 The problem here is that u will need a compound mix (niether 100% cementitious, nor 100% paint) but a compound which will stick to paint in a large format. Compounds like jointing compound are not ideal as the will leave flat sheen spots everywhere and u will wish u left it as is. If u dont want to remove all the paint, there is only one product i know of, and its expensive. DULUX ACRATEX ACRAPATCH FINE used as is without the 10% portland cement that they recommend on the lid (that is for patching and jointing external weatherboard prior to a smooth finnish). This is only available at a dulux trade centre or inspirations paint outlet. It will be more expensive to remove the old paint. Pergaps drylining is an option. Ppl ahouldnt paint rendered walls inside the house. Its a one way street! Thanks. Damn that is an expensive product. Might need to rethink drywall if there are no other options. Re: Plaster skim coat over painted render 4Feb 16, 2017 11:16 am Yes for a member of the general public it is unaffordable. It is a trade product and therefor the pricing structure makes it affirdableto tradesmen only, with special texture accounts with dulux. It will be significantly cheaper if u can supply dulux trade centre with a business ab. Actually walk in, dont call, walk in with a valid ABN and ask for trade price. Re: Plaster skim coat over painted render 5Feb 22, 2017 6:47 am I actually already have one. I was referring to the trade price! Have been doing some more investigation and spoke to Rockcote and CSR. Apparently rockcote keycote will stick to paint then I could skim coat a hardwallplaster over this. Or unofficially, the csr rep said some builders use Basecoat straight over the top. I will do a test sample and see what works. Re: Plaster skim coat over painted render 6Oct 07, 2018 11:56 am Hi Captincaveman I'm looking in to renovating my house and have the same issue you had. I'd like to paint the walls but that are finished with a rough plaster that has been painted so meny times they current finnish coat is really rough. I've tried sanding back the paint and some of the existing plaster, unfortunately the plaster h as small stones in it that has given it the right finnish and sanding will not fix the issue. I'm thinking I'll have to skim coat over the but not sure how well the is will work. I'd like to know how you dealt with your place, what products you used, how when it worked and if you'd recommend doing the same. Cheers Hi, Have used the Dulux 1 step, oil base on my walls(white set), out of can it’s already a more thinner product than a final coat paint Also in water base Water or… 3 5040 yeah i couldnt picture it issue either, but i could clearly picture what they were doing wrong haha 2 5302 |