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H-Flachs Sound Core
Soundproofing inserts

For all doors and walls with sound insulation requirements


Our H-Flachs Fire Core sound insulation insert is the optimal solution for all doors and walls with excellent sound insulation.
The elaborately designed sound insulation panels achieve a maximum sound insulation of 42db.

In addition, our panels are not only efficient, but also sustainable. By using recyclable raw materials, the H-Flachs Fire Core board can be 100% recycled.

Your advantages of H-Flachs Sound Core:

Light weight- With around 23% less weight, we achieve the same results as conventional soundproofing panels

Good thermal insulation - whether for doors or walls for indoor or outdoor use

Cost efficient - Thanks to our many years of experience and optimized manufacturing processes, our fire protection inserts are more cost-effective than other solutions

Individual solutions - Custom-made products are our specialty. We produce the fire protection board according to your wishes with thickness, length and density

Sustainable - By using the plant-based raw material flax, the board can be 100% recycled at the end of its life cycle


Individual panels for your requirements up to 42 db sound insulation

Speak to our sales team – we are guaranteed to have a suitable solution for you!

We make sound insulation sustainable

Is it even possible to design fire protection in an environmentally friendly way? We say yes!
Because our soundproofing inserts are made from the natural raw material flax. To do this, we use residues that are left over from processing the raw materials. This means that the production of our soundproofing panels is 100% sustainable. The soundproofing panels can be easily recycled at the end of their life cycle.


We also do not use formaldehyde. Unfortunately, most wood materials these days are still glued with adhesives that contain the pollutant formaldehyde. This is released over time and can cause allergic reactions or headaches. Formaldehyde is also suspected of being carcinogenic. For these reasons we have decided to only use natural adhesives.


No wood is used in our flax panels. This means that no trees – “lungs of the earth” – need to be felled. In general, flax is an annual white or blue-flowering agricultural crop. It ripens in 3 to 4 months and is pulled out of the ground after 100 days, including the roots. Flax is rapidly renewable and is therefore an extremely economical and sustainable raw material. Research has even shown that flax is one of the most environmentally friendly crops around.

About H-Flachs

Technical characteristics & data sheets

Do you need more than just fire protection?

H-Flachs Fire Core fire protection insert

Our panel for doors and walls with high fire protection requirements.
With our inserts, fire protection from 30 to 120 minutes of fire resistance is no problem.

H-Flachs Multi-function Board

Do you need a board that is heat-insulating, water-repellent and non-flammable? Then our multifunctional plates are the right solution.