Noxudol 3100 is a waterborne viscous, elastic sound damping paste based on polymers. Due to its viscous elastic flexibility it converts sound producing resonance into heat. The material holds good adhesive qualities and is waterresistant when hardened. The product contains anti corrosives and also gives some protection against condensation. Noxudol 3100 has a high damping factor despite low weight (approx. half the weight compared with traditional glued metal plates)
Noxudol 3100 should only be applied on carefully cleaned surfaces. Untreated surfaces of steel in moist environment and amphoteric metal surfaces such as unalloyed aluminium, zinc etc. which can react with bases must be primed before treatment to ensure good adhesion. Apply with a high-pressure pump (airless) 1:26>, sprayer or roller. When using a high-pressure pump it is very important to switch off the pressure when not spraying. Max. interruption with pressure on, 1 minute. After switching off, the pressure in the hose must also be let out by the pistol gun; otherwise the material will pack in the hose and be very difficult to remove. The pistol gun ought to be front mounted, the hose reasonably wide and the needle as large as possible.
To achieve an effective resonance and sound damping, apply a smooth layer of 1,0 - 2,5 mm dry film, depending on the basis. The film thickness will also influence the drying time, normally 6-8 hours at room temperature. At lower temperatures or high humidity the drying time will increase considerably.
The product sets in two steps. First the water evaporates, and then a chemical hardening takes place during the next 7-14 days, depending on the temperature. After the first step, the evaporation, the film is dry, manageable and already has a sound damping effect of around 80%. This effect increases during the chemical hardening. Only after the film has hardened (7-14 days) Noxudol 3100 is water and frost resistant and can then also be top coated with most paint. A practical test has to be done first on a smaller area to make sure that the paste withstands the paint.