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spray pressure

  • Asphalt Sealcoating System Tip: Losing Pressure at the Spray Tip

    Have you suddenly lost pressure at the spray tip of your sealcoating machine? There are a few different reasons why this can happen. Reason 1: Sealer Dilution The first reason could be that the sealer is too thick:  it is not diluted enough with water. Sealer is sold as a concentrate, therefore all sealer must be diluted with 20 to 30% water dilution.  That means for every 100 gallons of concentrate, you need to add 20 to 30 gallons worth of water. We always recommend that you add the water to the spray system tank prior to transferring sealer concentrate over to the tank. Mixing it thoroughly and making sure your sealer is diluted will allow you to have a sealer that is at a dilution level that can be sprayed with a spray system. If you’re applying the sealer by hand with a squeegee or sealer brush dilution is not as necessary because it can be applied in a viscous state. Reason 2: Blockage in the Sprayer The second reason why a sealer spray system may not be spraying is because the unit may have blockage down at the main suction pipe. The suction pipe...

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