Derogrund HSA

Anti rust high solid primer with chromate-free anti-corrosive pigments (zinc-phosphate) on alkyd resin basis free.

General information
Derogrund HSA

Field of application

  • Protection against corrosion for iron and steel
  • Primer in a multi-layer system for lower rust protection requirements.
  • Agree with VOC directive for one-pack performance coatings.

Product properties

  • High Solid
  • Free from aromatic compounds
  • Contains zincphosphate
  • Resistance to mineral oils
  • High surface hardness
  • Fast drying
  • Tolerant to a contaminated support
  • Overcoatability: with alcyd paints
  • Release by the company Hensel GmbH, Germany as a primer for fíre protection systems F30- F90

Technical Specification
Derogrund HSA

Colours redbrown, light-grey, white, grey.
Other colours upon request.
Flash point >23 °C
Temperature stability -20 up to 120 (short-term up to 150) °C
Gloss Mat
Potential dry film thickness in one working process 80 up to 120 µm
Viscosity Thixotrope
Density in kg/l 1,49
Solid content in % 72
Solid volume in % 51
Theoretical spreading capacity
  • 6,38 m²/l at 80 µm DFT
  • 4,28 m²/kg at 80 µm DFT
Recommended film thickness 150 µm WFT corresponds to 80 µm DFT
Drying (DIN EN ISO 1517) 80 µm DFT
Dust-dry (Tg1) After 30 min
Touch-dry (Tg4) After 2 h
Dry (Tg6) After 3 h
Interval for overcoating
  • after 1 h with alcyd paints
  • after 2 h with two component Derocryl topcoats

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
Derogrund HSA

(See Security Data Sheet)

VOC-level Appr. 417 g/l
Solvent content Appr. 28 % by weight
Aromatic content <3 % by weight

Storage
Derogrund HSA

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
Derogrund HSA

Airless spraying

  • Flow pressure 180 bar
  • Nozzle size 0,013 - 0,015 inch (0,33 - 0,38 mm)
  • Spraying angle according to the geometry and size of the object to be laquered

Compressed air spraying

  • Spraying pressure 5 - 6 bar
  • Nozzle size 1,5 - 1,8 mm
  • Adjust to spraying viscosity (appr. 30 s DIN 4 mm) adding appr. 8 % KH-Verdünnung (two component products: after mixing)

Electrostatic application

  • Can be applied as delivered
  • Application is possible provided that the material is diluted
  • Conductance of the material: 450 kΩ

Dipping

  • Can not be applied as delivered

Other methods

  • Roller and brush application is possible in the quality as delivered

Thinner

  • Max. 10% KH-Verdünnung

Cleaning

  • Rinse immediately with KH-Verdünnung
  • Residues are dissolvable with Derozink-Verdünnung

Preparation of support

  • Shot blasting to a purity according to SA 2½
  • If necessary clean with high pressure-cleaner and turbo-cleaner-solution
  • 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: Derogrund HSA
  • Finish coat: Deritex 40 HS

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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.

Quick access to product information.

Dr. Demuth Derisol Lackfarben GmbH & Co. KG

Hillerser Straße 8, 37154 Northeim
Telefon +49 5551 / 97940
Telefax +49 5551 / 979430

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