37,302 views ·
27 replies
37k views
27 replies
Alternatives to TEC7?
Have YOU tried Multibond?Sabai1 said:Just wanted to share the knowledge we have about sealants and writing as a private person, not mentioning which company it is.
We have this knowledge because we produce sealants ourselves and have tested almost everything on the market.
You say Multibond is a good value product and it probably is, but it can't be compared with Tec-7, though it might be fully sufficient for what you need it for.
The fact that there are companies in the sealant industry apparently offering 40% discount if you buy ten tubes indicates that brand products are generally overpriced and that it might be advisable to explore alternatives.
I don't think it sounds like sabai is trying to do FUD, and it's interesting to hear details about the composition of the products, which is hard to find out just from websites and product sheets.
So please tell us more! MS is more of an additive than a matrix, so to speak? I thought it was the main component of the product, like 80-99%. As an additive, what is the reason for adding it? What properties does it provide that are desirable? Do you yourself know of alternative products that might also have more ms content, even if it doesn't reach tec7? Well-priced is the goal, otherwise, one might as well use tec7.
I think some here are willing to test, and I've applied multibond on a few seams in the facade that are not so critical (the garage) and then painted over it anyway. The hard part is that I won't know the result for several years.
So please tell us more! MS is more of an additive than a matrix, so to speak? I thought it was the main component of the product, like 80-99%. As an additive, what is the reason for adding it? What properties does it provide that are desirable? Do you yourself know of alternative products that might also have more ms content, even if it doesn't reach tec7? Well-priced is the goal, otherwise, one might as well use tec7.
I think some here are willing to test, and I've applied multibond on a few seams in the facade that are not so critical (the garage) and then painted over it anyway. The hard part is that I won't know the result for several years.
I was warned for mentioning I have a company; apparently, this forum is not very tolerant.slothy said:
I don't think it sounds like sabai is trying FUD, and it's interesting to hear details about the composition of products, which is hard to find out just from websites and product sheets.
So please tell us more! MS is more of an additive than a matrix, so to speak? I thought it was the main component of the product, like 80-99%. As an additive, what is the reason for its addition? What properties does it bring that are desirable? Do you know of alternative products that might also have more MS, even if they do not reach tec7? Being well-priced is the goal; otherwise, you might as well use tec7.
I believe that some here are willing to test, and I have personally used multibond on some joints in the facade that aren't critical (the garage) and then painted over them anyway. The hard part is that I won't know the result for several years.
I find it an interesting discussion, which is why I wrote, but I didn't mention which company I work for or anything. This is purely information I'm sharing privately!
MS polymer stands for modified silicone and it is used to make the sealant flexible over time. In the past, PCB was used in sealants, which was a fantastic material for sealants, unfortunately, it wasn't good for the environment or humans.
Since then, there has been an attempt to find replacements; for a while, polyurethane was used but this material also has negative properties.
So right now we are working with MS polymer. For all chemical products, there are safety data sheets about the content of the product. These are made by the producer or importer, and we are almost free to state how much of the actual content is in the product. Look at Multibond's safety data sheet; Biltema only states 4% of the content in it. This makes it impossible to figure out the percentage composition of, for example, MS!
We look at values like Shore hardness, which shows how hard the sealant is when it has cured, a figure between 16-28 is a normal value. Tec 7 uses a German standard DIN 53505: 60 Shore A.
The next value is elongation, how far can the sealant be stretched before it breaks, Tec-7 can be stretched to 350% before it breaks.
The movement absorption capacity should be +-25%.
What is important today is the environment; when new houses are built, most materials must be environmentally approved in some way. Sika, Danalim, Tec-7 all have an environmental assessment that makes them safe to use. However, Multibond is not approved for use because it contains risk reduction substances. This is just a fact; those who work daily with chemical products want to know that it is safe!
Again, I'm not claiming that Multibond is a bad product, but neither you nor I can claim it's the same content, that they both work absolutely.
It is a discussion forum for individuals.Sabai1 said:
Multibond is easily accessible and reasonably priced for us consumers, often it is good enough. Try Multibond if you haven’t before you talk badly about the product.
Where have I written bad things about it??? I think you have a bit of a bad attitude!F fribygg said:
No. MS does not stand for modified silicone but silyl-modified, where silyl is a silicon group. But unlike silicone adhesives, the polymer chain itself is not built of silicon.Sabai1 said:Got a warning because I wrote that I have a company when apparently it's not appreciated in this forum.
I think it's an interesting discussion which is why I wrote, but I did not mention which company I work for or anything else. This is pure information that I privately share!
MS polymer stands for modified silicone and it is meant to make the sealant soft over time. In the past, PCB was used in sealants which was a fantastic material for sealants, unfortunately, it wasn't environmentally friendly or good for people.
Since then, alternatives have been tried; for a while polyurethane was used, but this material also has negative properties.
So right now, it is MS polymer that we work with. For all chemical products, there are safety data sheets about the product's content. These are made by the producer or importer and we are almost free to specify how much of the actual content is in the product. Look at Multibond's safety data sheet, Biltema only specifies 4% of its content. This makes it impossible to go beyond the percentages given of, for example, MS!
We look at, for example, Shore numbers that show how hard the sealant is when it has cured, a number between 16-28 is a normal value. Tec 7 uses a German standard DIN 53505: 60 Shore A.
The next value is elongation, how far can you stretch the sealant before it breaks, Tec-7 can be stretched to 350% before it breaks.
The movement absorption capacity should be +-25%.
What is important today is the environment; when new houses are built, most of the material must be environmentally approved in some way. Sika, Danalim, Tec-7 all have an environmental assessment which makes them safe to use. Multibond, however, is not approved for use because it contains risk-reduction substances. This is just a fact for those who work daily with chemical products and want to know that it is safe!
Again, not claiming that Multibond is a bad product, but neither you nor I can claim that it has the same content, that they both work, absolutely.
Today I have the energy to write below...
But often I feel so drained when I read forums online. This is a /mild/ example but as I see it, a member writes something about the topic. They stick strictly to the topic and express their knowledge.
Then others in the thread respond and talk about the "person" instead of discussing the product.
I don't believe there's any substance in questioning Sabai1's post as conspiratorial, but rather as someone who is an SME (subject matter expert) in a field and can provide information for us to consider. Calling it FUD spreading seems wrong to me.
It might be that for us hobby fixers, the differences don't make a practical difference - but if we're building a house, or an application where environmental impact might be a concern - isn't it good information to look for environmental certification? Yes, I think so. Does it matter to me if I'm sealing the roof of a woodshed? No, not for me. But it's up to each person to take a stand.
What I'm trying to convey is that if we more generally say "I don't agree with your opinion" or "has your opinion considered x" instead of saying or implying "I think you have the wrong opinion" or "your opinion is biased for personal gain," it is better and keeps the discussion open in the thread.
Personally, I have chosen not to write responses in threads where I feel I can provide information that contradicts the general discussion in the thread because I don't have the energy for potential comments that misinterpret the response or don't differentiate between the topic and the person.
This response didn't directly address alternatives to TEC7, but rather is a sort of "old man grumble" about how we as a community easily push away those who share with us... But if we try to read what is written with the assumption that it was written with good intentions, I hope we all benefit from it.
I myself appreciate getting facts about things, and that facts can be interpreted differently - that's the benefit of a discussion. And I hope to read many more threads where different people have different opinions and facts about the situation being discussed, and that everyone feels they can contribute without getting caught in a negative energy spiral.
But often I feel so drained when I read forums online. This is a /mild/ example but as I see it, a member writes something about the topic. They stick strictly to the topic and express their knowledge.
Then others in the thread respond and talk about the "person" instead of discussing the product.
I don't believe there's any substance in questioning Sabai1's post as conspiratorial, but rather as someone who is an SME (subject matter expert) in a field and can provide information for us to consider. Calling it FUD spreading seems wrong to me.
It might be that for us hobby fixers, the differences don't make a practical difference - but if we're building a house, or an application where environmental impact might be a concern - isn't it good information to look for environmental certification? Yes, I think so. Does it matter to me if I'm sealing the roof of a woodshed? No, not for me. But it's up to each person to take a stand.
What I'm trying to convey is that if we more generally say "I don't agree with your opinion" or "has your opinion considered x" instead of saying or implying "I think you have the wrong opinion" or "your opinion is biased for personal gain," it is better and keeps the discussion open in the thread.
Personally, I have chosen not to write responses in threads where I feel I can provide information that contradicts the general discussion in the thread because I don't have the energy for potential comments that misinterpret the response or don't differentiate between the topic and the person.
This response didn't directly address alternatives to TEC7, but rather is a sort of "old man grumble" about how we as a community easily push away those who share with us... But if we try to read what is written with the assumption that it was written with good intentions, I hope we all benefit from it.
I myself appreciate getting facts about things, and that facts can be interpreted differently - that's the benefit of a discussion. And I hope to read many more threads where different people have different opinions and facts about the situation being discussed, and that everyone feels they can contribute without getting caught in a negative energy spiral.
Cycled to Verktygsboden to buy Tec7, to attach brass plates to powder-coated steel. They didn't have the brand, so I bought the Bostik equivalent to Tec7. Glued with it, but the plate came off after a few days. Took the car to another hardware store and bought Tec7. Repeated the procedure, and now after three years, the plates are still attached.
In this case, the best quality was important. But if you're just doing caulking or similar, Biltema might be sufficient quality...
In this case, the best quality was important. But if you're just doing caulking or similar, Biltema might be sufficient quality...
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