Issue using filler with new plaster HELP!

[Kazmerelda]

Hi All,

I am a new member so hello to all.

We are having a slight problem with our newly plastered walls. This wall was not done by the plasterer who did all the rest of the house which all looks amazing with a couple of trowel marks here or there.

This one wall had several trowel marks on it so we decided to use filler as advised generally (I did some research and plasterer said any small marks can be filled). We have filled carefully, sanded carefully, mist coated all carefully but this has happened

Plaster issue

• Kazmerelda
• 21 Aug 2013
• 1

This is not the only area tbh, there are about 4 patches like this. It seems to have sunk (for want of a better word) in the patches, which is really odd.

Currently we are probably going to ask for the wall to be replastered unless anyone can offer a suggestion as to how we can fix this? I have grown up with decorators but I have never seen filler do this before and never had this problem.

Thanks for any advice, it is appreciated.

 

[opps]

what filler did you use?

The powder/ready mix Tetrion/polyfiller types do shrink slightly as they dry.

I suspect that yours is the result of "oversanding". As the filler is softer than the surrounding plaster, even when using a perfectly flat sanding block the grit on the paper gouges out more of the softer filler than the plaster.

I would just fill over the top with Red Devil OneTime filler and then sand lightly with 180 grit silicon carbide paper. I recommend silicon carbide because the same grit number uses much smaller bits of grit than aluminium oxide.

You also seem to have a slight issue with the filler flashing ie the filler is absorbing the paint at a different rate to the surround plaster and creating a different sheen. This is less of an issue with OneTime but if it still occurs then paint with Zinsser BIN first.

Another advantage of OneTime is that the dust does not become statically charged and cling to everything, any that falls on to the carpet can (normally) be removed when dry buy rubbing with the sole of your shoe.

It does cost more though but a hell of a lot less than replastering

BTW welcome

 

[Kazmerelda]

Thanks for your help, I will give this a go for sure.

Meant to add the filler we used was ready mixed polyfilla. I must admit in the past when I have filled I have used the one you mix yourself but it was the stuff my OH had at the time.

 

[Kazmerelda]

Opps, I wanted to say a huge thanks for the recommendation. WOW even just overnight the difference using this filler has made is truly amazing. It doesn't look like we even need to sand it.

We still have some work but you just saved us what we thought was going to be a replaster

 

[opps]

Thanks for the thanks. One of the things that I love about this site is that people are happy to give up their time to try and help others. kinda restores my wavering faith in mankind

Personally I always give filler a very light sand. I you are tempted to paint with out sanding, dilute the paint first. If you then decide that you need to sand it will make your life much easier.

Good luck