A few months ago (I can’t believe it’s been months!), I started renovating my house. One of the materials used the most was Lemkra. I regretted the decision of using the brand. I have seen some samples during IndoBuildTech 2013, then I was not convinced. I should not have delegated the job that I was supposed to do which was researching the best materials to be used in the house. This was the only time I missed it and this would not happen again.
Back to the topic. During the IndoBuildTech trade shows, I was not convinced due to its brittleness and the ingredients used in the material look like limestone. Limestone is never going to be hard and sturdy. It will not last long.
My suspicions turned out to be right, the so-called plester mutiara (PM-xxx) is no good at anywhere around the house, including exterior parts that are exposed to sunlight and weather. Supposedly, this plester mutiara needs no paint. This is the goal, to avoid using paint and the need to repaint after a few years of harsh tropical weather exposure.
I guess I can partly blame it on the inexperience applicators who was assigned to work on the thing. They don’t have a clue on how to do it right. And to make it worse, the team leader do not know what’s going on, how to fix the thing, and how to properly use the material in question. So, at that time, nobody knew how to do it right.
The finish is surprising. The surface is brittle, very soft when exposed to water (turning into raw materials, WTH??), uneven, and sandy. What I mean by sandy is it constantly produces sand, no matter after you clean it well, it keeps producing soft sand and dust. This happens with the grey color. On the off-white color, after proper washing and cleaning, it fared much better. So, there are two areas, one is wall in the garden area and the other one in the service area. There were worker changes during WIP so that didn’t go well either.
After careful consultations and research, I came to conclusion that:
- Contrary to Lemkra’s suggestions, the surface of finish does not have to be wavy. Flat finish can be done. Flat finish has the same strength and hardness as wavy finish.
- It is still brittle, even after two pros whom Lemkra sent to fix the problem reapply the work.
- It is still fugly, even after two pros whom Lemkra sent to fix the problem reapply the work. I guess I should not have trusted their demo at a local trade show.
- When wet, the new surface softens a bit. It’s never going to be as hard as cement finish.
- To get the most reasonable result, you really need VERY experienced and competent applicators to do the job.
- Non-experience workers tends to follow the book by bringing specialized mixing tool to mix the ingredients when in fact, pros can do it by hand.
- It took one and a half month for non-experience workers to produced messed up look, poor quality, and ruined finish. It took 2 pro persons 1 day to fix & finish the whole service area. Experience is key.
- It is very easy to make erros.
I don’t recommend lemkra for use anywhere around the house. it could probably be okay for garden or those who do not care much about uneven finish and quality. The finish and the quality of the job are greatly dependent on the applicators. They need to be really good, otherwise, I suggest you to avoid using any at all cost. For similar applications, I suggest looking at its competitors, google it, you’ll find abundant of alternatives.
LEMKRA WILL DO IT FOR YOU
Unlike popular believe among contractors, Lemkra guys can do the job for you, customers, from start to finish.
I took me a while to consider whether to post this or not but I would do a massive disservice to potential customers if I didn’t. You, potential users and customers need to know about those issues above.
Here are some pics of the finished surface: (I know these pics do not do justice, once you see them in person, you’ll know that the work is really bad.)
I included high resolution photos in the following photos, click on the photos to view them.