Knauf Proroll Max Plaster

[Willowbob]

Afternoon all; I am new to the forum, but have always had an interest in plastering (i.e. the skills required....which sadly I don't have!). I am doing a decorating job and have a small pillar area which needs a bit of a skim to get it nice and level (approx 6 x 2 feet). I do own a plasterers trowel and have seen (don't laugh!) some DIY plaster, in a tub, Knauf Proroll Max. Watching a video of a pretty knowledgeable builder using this (comparing this product and Gypsom plaster for comparison on the same plaster board), it seems like something I could possibly have a go at, if only to learn some (very) basic skill on a small area. Gypsum based plastering is out of my league.

My questions are;

1. Is this any good and has anyone used it (I believe its popular on the continent)
2. I can see nothing on the video/s I have watched or on any of the product information regarding timescales of when it 'picks up', or when it is ready to start trowelling/smoothing?
3. Once applied, indoors well ventilated room, how long do you leave it before working it, as per number 2 above? I know its a piece of string question to an extent, but, if anyone has used it before, indoors, applying say 1mm, how long did you wait until working it. A rough timescale is fine, is it 5 minutes or 5 hours? I can't seem to get any gauge or advice on it, so before I start, this would be a useful thing to know.
4. Anything else you think is relevant.

Cheers all and thanks.

 

[ChrispyUK]

Afternoon all; I am new to the forum, but have always had an interest in plastering (i.e. the skills required....which sadly I don't have!). I am doing a decorating job and have a small pillar area which needs a bit of a skim to get it nice and level (approx 6 x 2 feet). I do own a plasterers trowel and have seen (don't laugh!) some DIY plaster, in a tub, Knauf Proroll Max. Watching a video of a pretty knowledgeable builder using this (comparing this product and Gypsom plaster for comparison on the same plaster board), it seems like something I could possibly have a go at, if only to learn some (very) basic skill on a small area. Gypsum based plastering is out of my league.

My questions are;

1. Is this any good and has anyone used it (I believe its popular on the continent)
2. I can see nothing on the video/s I have watched or on any of the product information regarding timescales of when it 'picks up', or when it is ready to start trowelling/smoothing?
3. Once applied, indoors well ventilated room, how long do you leave it before working it, as per number 2 above? I know its a piece of string question to an extent, but, if anyone has used it before, indoors, applying say 1mm, how long did you wait until working it. A rough timescale is fine, is it 5 minutes or 5 hours? I can't seem to get any gauge or advice on it, so before I start, this would be a useful thing to know.
4. Anything else you think is relevant.

Cheers all and thanks.

Doubt you’ll find anyone here whose used it tbf. Try it and report back or give it a go with some multi finish…sounds like a nice little area to have a bash on

 

[Willowbob]

To be fair, its was a lot of work (but it was my first time using the stuff so learnt a lot). The guy in the video I watched was using it on new dry plasterboard, so, would be easier to work on that (porous) surface I would think. On the non porous surface I was using I did the base plaster coat, flatted it off as best I could, but then left it 24 hours. The second final skim 'picked up' within minutes, as the surface below was now porous with the first coat I had done the day before and was a lot easier to work on.

The pictures below show what I was confronted with when the wallpaper was removed. The finish is certainly acceptable.

Did a first sanding with a sanding block by hand with 180 grit today, then finished it off with 800 grit again by hand.

On the non porous surface I was using I did the base coat, flatted it off as best I could, but then left it 24 hours. As mentioned above, the final skim went on much easier, so less to sand off 24 hours after that.

I have learnt at lot. If it a non porous surface, it is a bit of a pain to work with, takes hours to pick up and still drags. As mentioned above, I found it best to get an initial coat on then leave to the next day on non porous walls. Then a light skim which goes on a lot easier. Leave another 24 hours, sand back.

I think professionals wouldn't use the stuff just because of the time it takes, but good stuff for the DIY man/woman, for smaller areas and who haven't got the skills to use Gypsum based plaster (me).

Hope this helps someone. Cheers

 

[essexandy]

To be fair, its was a lot of work (but it was my first time using the stuff so learnt a lot). The guy in the video I watched was using it on new dry plasterboard, so, would be easier to work on that (porous) surface I would think. On the non porous surface I was using I did the base plaster coat, flatted it off as best I could, but then left it 24 hours. The second final skim 'picked up' within minutes, as the surface below was now porous with the first coat I had done the day before and was a lot easier to work on.

The pictures below show what I was confronted with when the wallpaper was removed. The finish is certainly acceptable.

Did a first sanding with a sanding block by hand with 180 grit today, then finished it off with 800 grit again by hand.

On the non porous surface I was using I did the base coat, flatted it off as best I could, but then left it 24 hours. As mentioned above, the final skim went on much easier, so less to sand off 24 hours after that.

I have learnt at lot. If it a non porous surface, it is a bit of a pain to work with, takes hours to pick up and still drags. As mentioned above, I found it best to get an initial coat on then leave to the next day on non porous walls. Then a light skim which goes on a lot easier. Leave another 24 hours, sand back.

I think professionals wouldn't use the stuff just because of the time it takes, but good stuff for the DIY man/woman, for smaller areas and who haven't got the skills to use Gypsum based plaster (me).

Hope this helps someone. Cheers

This is the sort of useful post that @ChrispyUK is calling out for.

 

[paulf]

This is the sort of useful post that @ChrispyUK is calling out for.

www.CHD.com/join-the-solution-revolution