Plastering Preparation for Backing & Skim Coat.
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If you're having backing coat problems this is where you can ask a question. Before you do just check the Previously Asked Questions first as the answer may already be there.

Types of Questions

I will answer

Any questions relating to plastering technique, materials or anything to do with plastering yourself.

I cannot answer

To avoid being drawn into arguments - I cannot answer questions relating to work that plasterer's have carried out.



Do You have a question about wall preparation?

If you're unsure about preparing your wall before plastering then you can ask your question here?

Previously Asked Questions

Click on any of the following to view the related Questions and Answers

Solid Plastering 
Hi Paul, Many thanks for the great site! Apologies for the lengthy text. I have a joining wall in a downstairs hallway in 1910ish terraced property. …

It is preferable to use a worn trowel, as a new one may leave marks. 
It is preferable to use a worn trowel, as a new one may leave marks. Answer Yes a worn in trowel is good - but a new one can be equally as good - …

Mix setting too quick to use 
Hi I am using a multi finish plaster and mixing to the correct mix as per bag. 25kg to 11.5li of clean water. I have tested a 5kg mix with 2.3litres of …

Stone wall 
Paul, I have removed blown lime plaster from an internal stone wall. I want to bring the wall back out in cement prior to plastering. How is it best achieved …

Internal corner preparation for previously plastered walls 
Hello Paul, very quick one... About to skim a room that has previously been plastered and painted, do you still use tape/scrim for the internal corners? …

Skimming walls that have patches of paper on them... 
Hi, we are due to get our bedroom completely skimmed over, but have found as it's an old 1930's house, the layers of wallpaper are very stubborn to remove! …

How to repair lots of blown Plaster and cracks on walls 
Hi, Can you please advise me what to do to prepare walls which are blown in a lot of different places. We are renovating our whole house and every wall …

Bathroom wall repairs 
Hi, I've gutted my bathroom in preparation for a new install. This included stripping all the old tiles off the wall and chasing in new pipework which …

Plaster finish prior to new tile installation  
Hello, I have removed ceramic tiles from a shower enclosure and have exposed a sand/cement render that is mostly sound (there are some areas that will …

Cement and Sand plaster over wood 
Hi, I am looking to plaster a wall. Some sections of it contain exposed wooden joists. I am using cement and sand plaster. Should I put somekind of …

Preparing old lime walls for plastering 
Hi - great videos thanks. I have an old lime wall which had very old wallpaper and a '70's fitted wardrobe over it. I have exposed the original oak timber …

Plaster  
Hi there Can I apply plaster on a painted wall? or have to remove the paint from the wall before? Many thanks

Crumbly wall 
Hello, I am decorating our office and when taking the wallpaper off we discovered the wall is in really bad condition. A large amount of cracks in the …

How to prepare walls after removing tiles 
I have removed tiles and most of the plaster has come away. It is an old brick wall, looks like grey cement wall at the back. I have large patches of up …

Scrimming Plasterboard joints 
I'm due to skim my dad's wall for him. He has removed the skirtings and took some of the wall with it so he's re boarded but not done It that well and …

Wall - Backing Coat or Plasterboard? 
I have a red brick interior wall and I'm wondering if I can plaster straight to it or do I have to use plasterboard . Answer You can apply plaster …

consistency 
If I buy plaster in powder form, what mixture do I use? I mean, how thick or thin should it be? It's just mixed with water isn't it? Thanks Phil …

skim over platered wall 
Old walls been wallpapered, removed wallpaper hopeing to paint but walls need reskiming. in order to paint walls. What do you use to coat the walls before …

Preparation 
Can I ask for some advice on what I have in my living room. 1- I have bare plasterboard. Can I apply a mix of 3:1 pva-water and plaster when tacky …

Consistency of Plaster 
The walls are made from 50 year old plaster board. They are not very absorbent - the plaster test remains damp for over 5 mins. I have been making …

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Terms

The author cannot accept liability for the use of any of the materials or methods recommended at this site or for any consequences arising out of their use. The author cannot guarantee the suitability of any recommendations made at this site and shall not be under any legal liability of any kind in respect of or arising out of the content of this site.