The widespread use of liquid ceramic thermal insulation Bronya allows you to solve problems not only related to insulation, elimination of cold bridges, fungus, condensate, mold, but also can be used as a noise-absorbing material to protect against unwanted noise, vibrations, corrosion, used for processing sea and river vessels, railway wagons, ventilation ducts, motor transport and other equipment. The application of the material gives an unconditional saving of labor costs when processing surfaces of a complex profile and internal, hard-to-reach surfaces of various structures. The materials have a good noise absorption coefficient, with a low relative weight, good adhesion, mechanical strength and a high degree of corrosion protection.
Sound insulation of cars by airless application of noise-absorbing materials has a number of advantages:
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- unlike gluing with vibration damping mats, there are no uncovered parts (boxes, seams, etc.), "cold bridges",
- the adhesion is several times higher, which makes it possible to apply materials to the roof panel without the risk of peeling,
- the specific gravity of materials is much lower, with higher noise absorption coefficients,
- high anticorrosive properties allow the material to be applied to the body floor,
- the material does not contain volatile solvents, is absolutely harmless to health, has no smell.
Noise reduction by 3 dBA is subjectively perceived by a person as being in earplugs or sound reduction by about 2 times. The dependence of the noise measurement is expressed in dBA (logarithmic value). So, for example, the general noise level: whispering conversation - 40 dBA, in the forest (in calm weather) - 50 dBA, elevator - 70 dBA, jet engine aircraft - 140 dBA.
| The treatment was carried out with a brush, a layer of 1-3 mm (uneven) | Noise level above the hood (outside) engine speed 800 | Noise level inside the cabin at idle (engine speed 800) | 40 km/h | 60 km/h | 80 km/h | 90 km/h | 120 km/h |
| Noise level before processing | 74-75 dBA | 78 dBA | 90-93 dBA | 92-93 dBA | 97-98 dBA | 97-100 dBA | 101-103 dBA |
| Noise level after processing | 68-69 dBA | 70 dBA | 86-87 dBA | 87-88 dBA | 92-93 dBA | 93 dBA | 96-97 dBA |
The video presents a variant of noise insulation using liquid ceramic thermal insulation Bronya based on the Lada Priora car.
Sound absorption coefficient - 0.12
The sound reduction coefficient is 0.15
Sound insulation performance - 1mm of thermal insulation Bronya = 10mm of traditional insulation.