Ureprime HS4

Epoxy-urethane primer

Description

High solids, modified epoxy-urethane primer suitable for applications that require VOC levels under 100g/L.

Features

  • Uses same catalyst as Acrylithane HS2. 
  • Chemical and solvent resistant.
  • Use as a primer / surfacer. 
  • Excellent corrosion resistance. 
  • Very Low VOC — < 100g/L. 
  • Recommended Use
    For use on automobiles, trucks, trailers, bulk tanks, and commercial architectural applications that require exceptional smoothness for a premium topcoat appearance.
  • Physical Constants

    Color/Shade code: White/16640 (other colors available) 

    Finish: Semi-flat 

    Volume solids: 62% ± 1 

    Theoretical spreading rate: 994 ft²/US gallon [24.8 m²/liter] – 1 mils [25 micron] 

    Flash point: 79°F [26°C] 

    Specific gravity: 12.5 lbs/US gallon [1.49 kg/liter] 

    Touch dry: 6 hours, 68°F/20°C 

    Through dry to handle: 8 hours, 68°F/20°C 

    Viscosity: 35”, Zahn 3 

    VOC content: 97 g/liter [0.81 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 15059 : Curing agent 95041 / 4 : 1 by volume 

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

    Thinner (max. vol.): Exempt solvents such as acetone or t-butyl acetate, as needed to maintain 100g/L VOC 

    Pot life: 2.5 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 [131 bar] (Airless spray data are indicative and subject to adjustment) 

    Cleaning of tools: 08320 Medium Reducer

    Indicated film thickness, dry: 2 – 5 mils [50 – 125 microns]

    Indicated film thickness, wet: 3.2 – 8 mils [81 – 203 microns] 

    Overcoat interval, min: 8 hours, 68°F/20°C 

  • Thinners, Additives, and Reducers
    08320Medium Reducer
    08DJBBrush/Roll Additive
    08EJBFast Spray Reducer
 

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