The advantages of hybrid MS polymers

The advantages of hybrid MS polymers over silicone.

We will say it once again: TEC7 is not a silicone. Zero percent. None. Nothing.

TEC7 is not a silicone. Then what is it?

Then what is it? Well, TEC7 was one of the very first hybrid MS polymer products on the European market. And probably still the best.

Hybrid MS polymers were developed in Japan in the late 1970s to make buildings more resistant to earthquakes. The combination of high bonding strength and high elasticity make MS polymers able to absorb movement and vibrations, and at the same time strong enough to hold a building upright. Bolts and screws can't do that...

These properties also make it an excellent basis for elastic adhesives and strong adhesive sealants. Like TEC7, in other words.

And silicones? They are a lot older. They have proven qualities, such as excellent UV resistance and permanent high elasticity. From a technical point of view they are perfect sealants, but the adhesion is often not as it should be. Hybrid MS polymers have an advantage in this respect in terms of chemical structure. Hence the name "hybrid": in terms of properties, it is a mix of the best properties of silicone sealants (elasticity, longevity) and extremely strong PU adhesives (adhesion, paintable, easier to process).

Tec7 is a hybrid MS polymer

But also in other areas, hybrid MS polymers are a more than worthy alternative to silicones. In the field of ecology and health, for example. Many of the current generation silicones are either of the acetic acid type that cannot be used on acid-sensitive metals and cement and lime-based substrates.

Or they are of the neutral curing oxime type. These oximes, and especially MEK-oxime or MEKO, are chemical substances that were classified as "suspected carcinogenic" by the EU in 2020. The professional use of MEKO-containing silicones is therefore being restricted and it is expected that most of them will disappear from the market. There are alternatives such as alkoxy silicones that do not have the health problems of Oximes. They are often more expensive and not every product is of the same high quality.

Hybrid MS polymers: safe and environmentally friendly

Hybrid MS polymers contain no known toxic components. Both during and after use, they cause virtually no emission of volatile organic compounds (VOCs). Products like TEC7, X-Seal and TRANS therefore also receive the highest classification for indoor air quality, such as the German Emicode EC1+ or the extremely strict Finnish M1-class. This makes them suitable for demanding applications in ecological construction.

In short, hybrid MS polymers are in many cases the better choice for both sealing and bonding. Better adhesion, perfect processability, paintable, safe, environmentally friendly, ... But make sure they come from a reliable and high-quality producer, such as TEC7.


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