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Get ready for the final coat on new parts or auto body repairs with this gray or black 2K primer and activator combination. High-build urethane primer is a versatile surfacer that can be applied over bare metal, body filler, epoxy primer, existing paint and much more. Since it is a sandable primer and fills imperfections as you spray, it’s great if you want to get an older surface perfectly smooth. This 2K primer is available in grey or black and comes in either quarts or gallons. This 2K primer activates with with part# 6501-4 at a 4:1 mix ratio.

Southern Polyurethanes (SPI) 2K Primer Standard

  • • Available in Gray or Black​

    • Available in Gallon or Quart sizes

    ​​• Activates with SPI6501​​

    • Can be used with SPI Polar Accelerator or Retarder​​

    • 30 - 60 minute sand time depending on temperature​​

    • 1.8 to 2.0 mills per coat not reduced​

    • 4:1 mix ratio​

    • Gun Tip Size - 1.8 - 2.5​

    • Reduce with SPI 870, 885 or 895 up to 25%​

    • Pot Life - 30-45 minutes at 75 degrees

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