AN2-701
AN2-701 Water-based damping coating
Damping
AN2-701 is a water-based damping coating applied to metal panels to suppress vibration noise. Substrates listed in our data include steel with anti-corrosion primer, galvanised steel, anodised aluminium and coil steel. At 20 °C, 55% RH and approx. 5 mm dry film, full drying takes 12–18 hours.
This page is archived material for reference only; contact Tech to confirm
Typical uses
- Sound deadening in vehicles, trains, ships, box structures and similar equipment
- Extended uses such as incinerators, elevators, ventilation ducts and power stations
- Fields that need lasting waterproofing or other performance
Technical data
- Viscosity
- thixotropic fluid
- Wet density
- approx. 1.4 ± 0.1 g/cm³
- Dry density
- approx. 1.2 ± 0.1 g/cm³
- Solids by weight
- approx. 74 ± 2%
- Colour
- cream-yellow or black, or to customer request
- pH
- approx. 8–9
- Usage per 1 mm dry film
- approx. 1.4–1.8 kg/m² (wet); approx. 1.1–1.2 L/m² (wet)
- Composite loss factor
- 0.2 (test standard reference DIN EN ISO 6721-3)
- Thermal conductivity
- approx. 0.2 W/mK
- Thickness per pass
- up to 5 mm wet in one pass, approx. 4–4.5 mm when dry
- Application temperature
- not below 15 °C recommended
- Drying
- at 20 °C, 55% humidity and about 5 mm dry film, full drying takes 12–18 hours; raising to 50 °C takes about 2–4 hours (surface air speed below 5 m/s)
- Storage
- at least nine months in sealed original packaging; keep dry and cool, protect from frost
- Packaging
- 25 kg pails; 250 kg steel drums (with liner bag); 1200 kg bulk bags (with liner bag)
Application notes
- Steel with a rust-inhibiting primer, galvanised steel, anodised aluminium, coil steel and similar; remove dust, oil and grease from the substrate and test compatibility before use.
- Use airless equipment with a pump ratio of at least 60:1, air-assisted equipment with a 12:1 pump ratio, or screw-pump equipment with 3–4 bar input pressure; manual spraying equipment such as Spatula or Mortar types can also be used.
- During application keep the coating surface even with no missed areas and use clean equipment where possible; a dried coating can be overcoated with other commercial coatings (one- or two-component, with or without solvent), and compatibility should be tested before application.
- On train bodies and containers make sure the floor has drain holes so that a wetted coating can dry.
- Clean with water promptly after application, adding household cleaner if needed. See the product MSDS for safety and disposal information.