TEKNODUR 3572-09
Polyurethane paint
- 2-component
- Primer
TEKNODUR 3572-09 is a two-pack polyurethane paint where the hardener used is an aliphatic polyisocyanate resin.
Is used as a primer on composite surfaces where TEKNODUR 3572-02 is used as topcoat.
Is used as a primer on composite surfaces where TEKNODUR 3572-02 is used as topcoat. The paint produces a film with good mechanical and weather resistance. Because the paint is fast curing it is suitable for use in two pack line painting where the demand for productivity is high.
Technical data sheet
Surface preparation
Remove from the surfaces any contaminants that might be detrimental to surface preparation and application. Surfaces that are exposed to weathering are also roughened up with sweep blast-cleaning (AlSaS) or sanding.
OLD PAINTED SURFACES SUITABLE FOR OVERCOATING: Any impurities that might be detrimental to the application of paint (e.g. grease and salts) are removed. The surfaces must be dry and clean. Old, painted surfaces that have exceeded the maximum overcoating time are to be roughened as well. Damaged parts are prepared in accordance with the requirements of the substrate and the maintenance coating.
The place and time of the preparation are to be chosen so that the prepared surface will not get dirty or damp before the subsequent treatment.
Additional instructive information for surface preparation can be found in standards EN ISO 12944-4 and ISO 8501-2.
Application
Inadequate stirring or incorrect mixing ratio results in imperfect curing and impaired film properties.
Application conditions
The surface to be treated must be dry and the relative air humidity below 80%. During the application and drying period the temperature of the ambient air and the surface shall be at least above +5°C, and the temperature of the product above +15°C during mixing and spraying.
Additionally, the temperature of the surface to be treated and the product must be at least +3°C above the dew point of the ambient air.
Storage
The hardener reacts with air humidity. Store in a cool place and in tightly closed containers. The storage stability is limited. Use opened hardener within two weeks.
Suitable airless nozzle size 0.013 - 0.017".
| Total mass of solids | abt. 1400 g/l |
|---|---|
| Volatile organic compound (VOC) | See safety data sheet. |
| Pot life | 15 min. (+23 °C) |
| Mixing ratio | 2,5:1 by volume (comp. A : comp. B) |
| Hardener | Comp. B: TEKNODUR HARDENER 7227-00 |
| Gloss | Gloss |
| Practical spreading rate | The values depend on the application technique, surface conditions, overspray, etc. |
| Drying time – dust free | 40 minutes (ISO 1517:1973) |
| Drying time – touch dry | 50 minutes (DIN 53150:1995) |
| Thinner | Standard thinners: TEKNOSOLV 1129-11, TEKNOSOLV 7140-00 or TEKNOSOLV 9526-00. |
| Clean up | TEKNOSOLV 6220 or TEKNOCLEAN 6496. |
| Colours | By agreement. |
| Safety markings | See safety data sheet. The hardener of the product and the ready mixture contain isocyanates. In poorly ventilated areas and especially when using spray application we recommend the use of a fresh air mask. In short or temporary work, a mask with combined filter A2-P2 can be used. In this case eyes and face are to be protected. |
| Gloss value | 75-90 |