Derozink n. BBV
Anti-corrosive zinc rich primer on epoxy-ester resin basis
General information
Derozink n. BBV
Product properties
- High Solid
- Coating systems for corrosivity category C3
- Coating systems for high temperatures
- Fast recoatability
- Weldable up to 25-30 µm dry film thickness
- Overcoatability: do not overcoat with itself
- Recoatability: with single-component topcoats
- Recoatability: with aromatic free topcoats (critical when by overpainting with aromatic content topcoats(wrinkling))
Technical Specification
Derozink n. BBV
| Colours | grey, green tinted, red tinted. |
|---|---|
| Flash point | >23 °C |
| Temperature stability | Up to 300 °C |
| Gloss | Mat |
| Potential dry film thickness in one working process | 40 up to 60 µm |
| Viscosity | Appr. 65 sec running time (DIN 4 mm pot) |
| Density in kg/l | 2,5 |
| Solid content in % | 83 |
| Solid volume in % | 51 |
| Theoretical spreading capacity |
|
| Recommended film thickness | 75 µm WFT corresponds to 40 µm DFT |
| Drying (DIN EN ISO 1517) | 40 µm DFT |
| Dust-dry (Tg1) | After 20 min |
| Touch-dry (Tg4) | After 60 min |
| Dry (Tg6) | After 24 h |
| Interval for overcoating |
|
Note
- The specifications are based on standard atmospheric conditions 23/50, DIN 50014.
- Lower temperatures and/or higher humidity will prolong drying and hardening.
Safety information
Derozink n. BBV
(See Security Data Sheet)
| VOC-level | Appr. 430 g/l |
|---|---|
| Solvent content | Appr. 17 % by weight |
| Aromatic content | Appr. 17 % by weight |
Storage
Derozink n. BBV
Storage
- In dry, cool rooms, if possible frost-proof
- Ensure good ventilation
Shelf life
- 6 month from date of delivery when in unopened original containers in cool and dry conditions
Application methods
Derozink n. BBV
Airless spraying
- Flow pressure 180 bar
- Nozzle size 0,011 - 0,014 inch (0,28 - 0,36 mm)
- Spraying angle according to the geometry and size of the object to be laquered
Compressed air spraying
- Spraying pressure 3 - 5 bar
- Nozzle size 1,5 - 2 mm
- Adjust to spraying viscosity (appr. 30 s DIN 4 mm) adding appr. 5 % Derozink-Verdünnung (two component products: after mixing)
Electrostatic application
- Application is not possible
Dipping
- Can not be applied as delivered
Other methods
- Roller and brush application for repair work is possible
Thinner
- Max. 10% Derozink-Verdünnung
Cleaning
- Rinse immediately with Derozink-Verdünnung
- Residues are dissolvable with Derozink-Verdünnung
Preparation of support
- Shot blasting to a purity according to SA 2½
- Mill scale, welding residues, dust and dirt on the surface which might reduce adhesion have to be carefully and thoroughly removed
General remarks
- During coating and drying the humidity should be min. 10 % / max. 85 %
- During coating and drying the environmental temperature should be min. 5°C / max. 30°C
- Object temperature at least 3° C above dew point.
Example for a system
- Primer coat: Derozink n. BBV
- Finish coat: EPE Einschichtlack
The general information and descriptions contained in this specification are provided to the best of our knowledge. Our information and specifications do not constitute warranted characteristics in the legal sense. Any advice for preparation and application which may be provided verbally, in writing or by means of experiments is of general nature only, and any property rights of third parties are also to be regarded in this context. Our general instructions do not release you from your obligation to check the suitability of the products supplied by our company for the intended methods and purposes of application. Particular in those cases when our supplied material will be applied with products from other sources. The products are prepared, applied and used outside of our sphere of control and thus fall solely within the user´s scope of responsibility.
Our general terms of sale and delivery apply as agreed.