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Just another question if i may! When i've knocked plaster back to brick am i right in thinking that i need to seal the join of the old plaster? Then another application of pva for adhesion before using hardwall? Thanks Phil

Hello I did some plastering about 3 months ago. I repaired some blown areas of plaster so i knocked plaster out back to brick, used hardwall then skimmed with multi finish. Anyway i have noticed some cracks and they sound hollow so i thought it had blown. I investigated and started raking...

Is it best to do a 5:1 water pva mix to seal the painted walls i'm skimming next? Phil

The walls i've skimmed over and will be skimming next are all painted with matt paint, if it makes any difference? :) Phil

Yes it was unpainted. The other walls i'm skimming are painted so am i ok with a 3 pva 1 water mix or am i better of with a 1 pva 5 water mix? I was under the impression that more pva is better for sealing. So a more watery mix is better for sealing especially for bare plaster? On the previous...

I think it may have set fairly quickly as it was warm in the room, I may not have applied enough PVA in that area too. The top half which I applied hardwall is fine and so is the bottom half. Like I said this is the first problem I've had with this, when I've skimmed over a painted wall its been...

Hello Yesterday i re-skimmed a wall over previous skim and as it was drying cracking started to appear. Now its dried there a few, i believe its called crazy cracking (the plaster is solid)? I pva'd to seal plaster 3 parts water and 1 part pva (stronger than tub instructed) then 3 parts pva 1...

Well to be honest i did think of that, great minds think alike :D Just another quick question...when i removed the old skirting boards theres a gap at the bottom of the wall. I just need to stick some plaster there for the new skirtings to stick to. However does it matter if its hardwall or...

Ah nice one :D Thanks for your help. Phil

Ok thanks for your help. So let me get this straight - hack off skim back to backing plaster? apply PVA, bring upto level with Hardwall then skim! So far I've skimmed 2 walls and they have been fine. This is the first time I've had to add more Hardwall to level things up after I've skimmed...

I've got some Hardwall left so I'll be using that. Can I apply that directly onto the skim or do I need to hack that off first? Thanks Phil

Hello On saturday I skimmed a wall but looking at it the top half slopes backwards! Now I intend to fix it and get it level-ish, but I'm in two minds on how to do it. Do I: 1. Hack off the multi finish back to the Hardwall, apply another coat or two of Hardwall to bring it up to...

Hello Just a quick question...again! Today i've been patching areas with Hardwall but was unable to do the finish coat with multi finish. However tomorrow i'll be skimming but what prep is needed for the hardwall before multi? Am i right in thinking strong mix of PVA to prime then another...

My final question for a while! Phil

Thanks for the replies. Also I have some Hardwall that expires on 6/6/12. Do I have to chuck out whatever is left on the expiry date or will it be ok for a few days after? Its stored in my house under the stairs on a concrete floor. Although I didn't realise that you have to put some wood or...

Just a quick question, is it ok to use a trowel that is starting to go rusty? Mine is only a cheap one from a wholesalers (£3.30!!) but its got some little rust spots at one end. Is it worth buying a more expensive one? Phil

Ah right that makes sense, thanks. So for the primer coat, just for example sake 1000ml (1l) of PVA then 5000ml (5l) of water then mix together. Is it best to do this or the method joe-90 suggested? Thanks Phil

Right, that does sound a lot easier. I sometimes try and over complicate things a bit but I just want to do it right. Also do I need a primer coat if I'm skimming onto a painted wall? Thanks Phil

Hello Now maths isn't my strong point and I'm planning on doing some plastering work in my spare bedroom. I want to get the ratios right first time, so I need some help figuring how to do it. I'm using Evo-stick Super evo bond PVA. The instructions say for plastering: Primer coat - evo...

Hello I've just patched up some cracked plaster, I took it back to brick and applied Hardwall and then Multi finish. However my question is, do I just mist coat the patched area or the whole wall? I was just thinking if I applied 1 or 2 mist coats to the patched area would the 'lip' where the...