I'm planning to create a laundry room in my basement with tiled walls. I'm stuck at the moment because I need to finish the walls with something on my "clean" concrete block walls. I've been advised to use plaster mortar B. The plastering will be from 1cm to a little over 2cm thick. As mentioned, it will then be tiled with adhesive and tiles. I would like information about Finja's range if possible because that's what my dealer has.
NOW TO MY QUESTIONS
Is plaster mortar B the best choice for me?
Before plastering, priming the concrete block? When to water and how much? With what to prime? How? Drying time before I start plastering?
Then throw on the plaster with a flick, pull off with the help of set guides, after how long? When to remove the guides?
I'm a bit afraid that plaster mortar B is too weak and when I apply the strong tile adhesive, the plaster won't be able to hold it up? Correct? Wrong?
NOW TO MY QUESTIONS
Is plaster mortar B the best choice for me?
Before plastering, priming the concrete block? When to water and how much? With what to prime? How? Drying time before I start plastering?
Then throw on the plaster with a flick, pull off with the help of set guides, after how long? When to remove the guides?
I'm a bit afraid that plaster mortar B is too weak and when I apply the strong tile adhesive, the plaster won't be able to hold it up? Correct? Wrong?
Read this:
http://www.finja.se/App_Resource/Page/file/betong/5007-1.pdf
Get back if you have any questions.
http://www.finja.se/App_Resource/Page/file/betong/5007-1.pdf
Get back if you have any questions.
Yes, I have read that a number of times. But what I am wondering is whether I should use b or c mortar when applying 20 mm plaster in certain areas, when I should apply the base coat, and when I should level against the guides. It doesn't say anything about tiling afterwards, which is why I feel I would like information specifically related to my issues. But thanks anyway for the answer alex86.
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You should use at least B-bruk, C-bruket has a much finer fraction and will crack if you apply it too thickly. It is absolutely no problem to tile on this surface once you have plastered it. Your tiles will stick as if they were glued! Prime the wall the day before with the same material you are going to plaster with (I assume you still have concrete), so it has time to set. It sets much slower on concrete. If you are very inexperienced and have never plastered before, I recommend you get a steel trowel so that you can apply the plaster instead of hitting it on. Good luck!
No, here it's going to be thrown up, must learn (maybe I'll change my mind once I start) my trader has talked to Finja and they recommended Puts bruk C. So I think I will go with their recommendation. But no, I'll call them myself and check. JimmyN, I feel a bit slow but you write (I assume you still have concrete) what do you mean, my walls are clean of plaster and are made of concrete hollow blocks. So already the day before, I thought watering today, slamming tomorrow, and then plastering before it really dries. Wrong???
I probably work slowly, but if a strip is about 75 cm, I fill about 3-4 strips with the stålskånska before I go back and scrape off the first 2-3 and refill where I had the slats. Then maybe I fill another strip and then go back and start smoothing the scraped strips, and so I work my way forward. It doesn't look good if you wait too long with the smoothing, but it doesn't really matter if you're going to tile.
It's best to water a day in advance before priming/slurring, ideally getting it water-saturated without being wet. So, water a little in stages and continue to maintain-moisture afterward. Wait a day to maintain-moisture the new plaster, and water gently so you don't wash it away.
It's best to water a day in advance before priming/slurring, ideally getting it water-saturated without being wet. So, water a little in stages and continue to maintain-moisture afterward. Wait a day to maintain-moisture the new plaster, and water gently so you don't wash it away.
I have heard both versions, so it's probably not that important which one. For me, it has sometimes been several weeks between priming and plastering because I've had mesh too and only work on this during the weekends.Kromo said: