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Drywall mud skim coat


andylondonuk's Avatar
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Join Date: Oct 2006
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10-12-06, 06:01 AM   #1  
Drywall mud skim coat

Hi there,

I've been reading a lot of postings on this site and it is really informative! These forums are a great resource.

I want to skim the walls in the flat I've recently bought and have decided, on reading many posts, that the more simple DIY way of doing it would be to use drywall mud/joint compound. as the skim coat. There are many techniques for doing this and I am happy enough to tackle the process of applying the compound. However, what is the best way of priming a wall that has been skimmed in this way? Can I use just watered down emulsion (20-25% thinned) or should I get a specialist drywall primer product? The other thing, is there any important things I should know about applying the compound to corners. I won't have to use wire mesh or anything will I?

Thanks for anyone's help in advance,

Andrew

 
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stickshift's Avatar
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10-12-06, 06:35 AM   #2  
First, why are you skim coating the walls?

Second, any good primer would be fine, sometimes the best choice is whatever is recommended by the company that makes the paint you will be using.

Third, mesh is not needed in the corners. You can just use the same knife or buy an inside corner knife where you got the mud.

 
andylondonuk's Avatar
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10-12-06, 08:05 AM   #3  
Thanks for your help.

The reason for skimming the walls is that we removed lining paper and want to restore a smooth finish that we can paint onto. There are imperfections in the wall and I thought skimming would be the best solution to the problem.

Can you also do external corners (e.g. on edges of chimney stack) without mesh?

 
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10-12-06, 08:25 AM   #4  
Mesh shouldn't be needed anywhere for an otherwise sound wall.

Before skim coating it would be best to remove as much glue as possible from the wall. Then you can begin skim coating. The skim coat should be real thin, you are only trying to perfect a surface not create a new one. Joint compound applied too heavy is apt to shrink and crack when it dries.


retired painter/contractor avid DIYer

 
stickshift's Avatar
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10-12-06, 08:31 AM   #5  
There is also an exterior corner knife available, if you wish.

 
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