Features
MetaLine 440 is a ready-to-use, water-based anti-drumming and noise-protection coating for the customer's own processing.
The material specifically interferes with the structure-borne sound behaviour of existing metallic structures. High tones are dampened and the reverberation-like echo is completely eliminated. As a result, the metal structure has the sound of a "cardboard box" after treatment. In individual cases, noise inhibitions of more than 30 dB(A) could be achieved.
It is applied to the outside or on the side facing away from the load and thus has no negative influence on the component function. The required coating thickness is about 1.5 times the thickness of the metal sheet to be treated. The procedure is ineffective with metal wall thicknesses over 5 mm (200 mils) or with extremely stiff constructions which do not tend to vibration and thus to structure-borne sound.
After air drying, the residual elastic film can be machined and coated with regular paint or the MetaLine Series 500 or 700 becoming FDA-compliant (food-/pharmacy-proof). The system can be used in wet or freezing conditions. The surface is profiled like an orange skin and can be cleaned/disinfected by standard treatments. The material is classified as flame-retardant according to DIN 4102.
Technical data
| Material basis | water-based resin dispersion |
| Type of reaction | 1-component air-drying |
| Type of application | application by trowel, brush or spraying |
| Properties | residual elasticity, absorbing |
| Characteristics | structure-borne noise-reducing |
| Layer thickness | 1-2-times metal sheet thickness |
| Number of layers | several layers up to the required thickness |
| Shrinking | up to 20 % (drying loss) |
| Approvals (DIN 4102) | B1 - hardly inflammable |
| Chemical resistance | only after coating / overpainting |
| Loss tangent (steel sheet) | 0.18 tan δ at 200 Hz |
| Mechanical processability | grinding and overpainting |
| Area weight | 1.2 kg per m²/mm (0.25 lb per 40 mils/sqft) film thickness |
| Ready for use | after 24 hours at the earliest |
| Color | beige |
| Substrate preparation | mechanical roughening or gritblasting / priming |
| Food compatibility | according to FDA if overcoated with Series 500/700 |
| Dangerous Goods Classification | none |
| Container size | 5.0 kg (11 lbs) pail including processing instructions |
| Shelf-life | at least 6 months |
| Availability | immediately ex stock |
| Transport | only above the freezing point (waterbased) |
Brochures
Pack sizes
The delivery includes:
- 1 x 5.0 kg (11 lbs) MetaLine 440 in plastic pail
- 1 x Processing Instructions
Availability: Immediately ex stock
Order
Order:
MetaLine 440 – Sound deadening: 93.- Euro (net) excl. shipping costs
The delivery includes:
- 1 x 5.0 kg (11 lbs) MetaLine 440 in plastic pail
- 1 x Processing Instructions
Availability: Immediately ex stock
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