Shopprimer Hydro NeoWeld

Water borne shopprimer based of hybrid polymer dispersion which has got a very short drying time and good block resistance. Free of lead, cadmium and chromium VI compounds. Welding certificate of SLV Duisburg.

General information
Shopprimer Hydro NeoWeld

Field of application

  • Temporary protection against corrosion for steel constructions and cast iron in less thickness

Product properties

  • Silicon-free
  • Water based
  • Scratch resistance
  • High surface hardness
  • Fast drying
  • Fast recoatability
  • Weldable up to 25-30 µm dry film thickness
  • Recoatability: universal

Technical Specification
Shopprimer Hydro NeoWeld

Colours redbrown, grey.
Other colours upon request.
Flash point Not applicable
Temperature stability -20 up to 120 (short-term up to 150) °C
Gloss Mat
Potential dry film thickness in one working process 25 up to 40 µm
Viscosity Appr. 35 sec running time (DIN 4 mm pot)
Density in kg/l 1,34
Solid content in % 54
Solid volume in % 36
Theoretical spreading capacity
  • 14,4 m²/l at 25 µm DFT
  • 10,75 m²/kg at 25 µm DFT
Recommended film thickness 75 µm WFT corresponds to 30 µm DFT
Drying (DIN EN ISO 1517) 25 µm DFT
Dust-dry (Tg1) After 5 min
Touch-dry (Tg4) After 15 min
Dry (Tg6) After 30 min
Interval for overcoating
  • after 1 h with water based topcoats
  • after 24 h with single-component topcoats
  • after 48 h with two component topcoats


  • 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
Shopprimer Hydro NeoWeld

(See Security Data Sheet)

Solvent content Appr. 1 % by weight

Shopprimer Hydro NeoWeld


  • In dry, cool rooms, 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
Shopprimer Hydro NeoWeld

Mixing ratio

  • Stirr homogeneous, preferably with mechanical stirrer

Airless spraying

  • Risk of spray dust due to very fast drying
  • After using the material close the packings immediately
  • Dip the pistol and the nozzle into water during the breaks
  • It is tending to fast skinning. Do not stir the skin in any case!
  • Flow pressure 70 - 100 bar
  • Nozzle size 0,013 - 0,019 inch (0,33 - 0,48 mm)
  • Suitable for the application on automatical equipments

Compressed air spraying

  • Can be applied as delivered
  • Spraying pressure 4 bar
  • Nozzle size 1,3 - 1,5 mm

Electrostatic application

  • Application is possible, provided the equipment is suitable for water based materials


  • Can not be applied as delivered
  • Adjust to working viscosity (appr. 23 s DIN 4 mm) by adding appr. 2 % Water

Other methods

  • Roller and brush application for repair work is possible


  • Max. 3% Water


  • Rinse immediately with Water
  • Residues are dissolvable with Deripox-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. 30 % / max. 85 %
  • Object temperature at least 3° C above dew point.

Example for a system

  • Primer coat:
  • Finish coat: Miscellaneous

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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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