Acrylithane HS4

Polyurethane topcoat


High-performance polyurethane formulated for automobiles, trucks, trailers, bulk tanks, chemical trailers and other commercial applications requiring VOC less than 100 grams/liter without compromising appearance.


  • Uses same catalyst as Ureprime HS4 primer. 
  • Excellent color and gloss retention. 
  • Chemical resistant. 
  • Ultra-low VOC. 
  • Recommended Use

    For use on automobiles, trucks, trailers, bulk tanks, chemical trailers and commercial architectural applications that require a premium topcoat appearance.

  • Physical Constants

    Color/Shade code: White/10000 (other colors available) 

    Finish: High gloss

    Volume solids: 59% ± 1 

    Theoretical spreading rate: 946 ft²/US gallon [23.6 m²/liter] – 1 mils [25 microns] 

    Flash point: 46°F/8°C 

    Specific gravity: 10.2 lbs/US gallon [1.22 kg/liter] 

    Viscosity: 20” – 30”, Zahn 3

    Touch dry: 8 hours, 68°F/20°C

    Through dry: 12 hours, 68°F/20°C VOC content: 64 g/liter [0.53 lbs/US gallon] 

    The physical constants stated are nominal data according to the Hempel Group's approved formulas. VOC may be dependent on color. 

  • Application

    Product / Mix ratio: Base 645J9 : Curing agent 95041 / 4 : 1 by volume 

    Application method: Airless spray / Air spray / Brush or Roller

    Thinner (max. vol.): None, thinning not required

    Pot life: 1.5 hours, 68°F/20°C 

    Nozzle orifice: 0.011" – 0.013" airless / 0.110” or 2.8 MM fluid cap conventional

    Nozzle pressure: 2,000 psi [138 bar] (Airless spray data are indicative and subject to adjustment) 

    Cleaning of tools: 08320 Medium

    Reducer Indicated film thickness, dry: 1.5 – 3 mils [38 – 76 microns]

    Indicated film thickness, wet: 2.3 – 4.8 mils [60 – 120 microns]

    Overcoat interval, min: 6 hours, 68°F/20°C 

    Overcoat interval, max: See Overcoating on the PDS

    For further Application Details, please refer to the Product Data Sheet available below.

  • Thinners, Additives, and Reducers
    08EJB Fast Spray Reducer
    08320 Medium Reducer

Relevant Documents

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