How to re skim a plastered wall

Hi Tony the best way to tackle your job is pva all areas again with a 50/50 mix water-pva leave until this goes tacky then multi finish plaster the walls again two coats. Take your time troweling giving attention to detail especially the corners.

The walls need pva on again an replaster with multi finish plaster to get nice an smooth

Hi Tony, You'll need to PVA the entire wall but don't make the PVA too strong, i would thin it to 50-50 PVA-Water, then roll or brush on to the wall, i would then start to plaster/skim the wall before the PVA has completely dried, the PVA should still be a little bit tacky, this helps with the plaster not drying out too quickly and you can work it a bit more and Multi finish is ideal. It will not require 2 coats either, trowel on one good coat, leave for approx 30-45 mins until the plaster has started to cure then start to trowel again, don't rush just take your time and you.ll get there. Use a water spray bottle (£1) to liven-up the plaster if it gets too dry, you can trowel/work the plaster for a good while still and even when all is dry and finished, if you have a few ridges/lines these can be sanded and when its painted it'll look fine. Good luck.

Hi Tony. If you're not a plasterer I'd personally use a product by gtec called smartmix extra. It comes in a white and purple tub, most builders yards will have it. You can apply it to the whole area with no pva needed. Apply a tight coat with a trowel or large caulking knife. Try to keep the lines to a minimum. Allow to dry for 24hr then take a block with some sandpaper wrapped around it and lightly rub over the surface. If there still appears to have marks repeat the process. Normally two coats will solve it and you won't need to worry about getting it flat because the sandpaper will do the hard work for you.

you can use pva but I prefer thistlebond-it, blue grit or plastering stabilising primer (bonding agents) as it is better for adhesion comes ready mixed and you just apply with a brush or roller the day before which creates even suction and adhesion all round and will give you more time to work the plaster. Thistle multi-finish is the industry standard although there are many other products out there. If its not too bad theres no reason why you couldn't do some fine filling and sanding with aims or easyfill or something of that sort good luck! get a plasterer lol two coats two to three 'trowels' (flattening) between coats timing is crucial trowel when water starts to evaporate from surface.

Hello Tony, You will need to PVA the wall with a 4 parts water 1 part PVA mix first and let that dry. Watch how quick this pulls into the plaster as this gives you a good indication as to how long you will have between plaster coats and trowling up. Once dry apply a 50/50 PVA mix to the wall and again watch it, until tacky. Then follow a 6 stage plastering guide. Stage 1. Apply first coat of plaster roughly 2/3mm thick. On your first coat try your best to keep it flat and even without any bulges. Don't worry too much about trowel marks or ridges as you will have time to get these out later. Stage 2. As your first coat starts to firm up, apply some pressure with a clean steel trowel and flatten off this will take out any of the ridges. Stage 3. Straight after stage 2 is finished apply your second coat of plaster this time using half the amount and thickness as your first coat. Apply a little more pressure. This will help fill and pull out any hollows/Holes that may have been left by the first coat. If you do have holes don't spend to much time filling them as you do not want the plaster to dry before you do. Stage 4. This is where you can trowel the plaster really flat and the plaster should still be wet enough to be pushed around to fill any of those nasty hollows. Stage 5. Your plaster should be drying nicely. Using a firm trowel this is where you can take out those final ridges. If the plaster is a little dryer than expected add a little water to the surface using a wet brush or light spray. widen the angel of the trowel if the ridges are proving tough, but be careful to not take the plaster off. Stage 6. The final trowel. As your plaster starts to darken and dry, run a firm trowel over the whole wall. This will give your plaster a light polish. Do not over polish as this will mean more work for whoever is painting the wall.You are done ! :) All the best, Jack