Tips for Asphalt Spray

Spray Hoses

• Many asphalt seal-coat sprayer machines utilize a 3/4-inch high pressure hose. Choose your hose's length based on the size of the project. All asphalt spray hoses must be chemically resistant and allow for easy rolling for storage purposes.

Spray Wands

• Most sprayers tend to use a 3/4-inch aluminum spraying wand. Some prefer to use a 1/2-inch option instead because they are lighter in weight, but these wands tend to restrict the flow of the coating liquid, which can often lead to problems with your pump and machine.

Spray Hose Tips

• Make sure you know which seal-coat spray tip fits the best with the asphalt seal-coat system you will be using. Each different tip choice varies the pressure at which the asphalt coating is dispensed from the hose and ultimately has an effect on how your finished product will turn out. The most commonly used style of tip is a hardened steel one. Hardened steel tips offer a lower cost and exceptional longevity.

Choosing a Pump

• It is best to choose a high quality transfer pump for your asphalt spray-coat purposes. These pumps typically come standard with all-metal housings, cast-iron impellers, stainless steel components and Viton-mechanical seals. Faulty parts can be replaced with a fair amount of ease. Make sure the pump you purchase automatically mixes the coating liquid while it works These pumps agitate and separate as they dispense, which is important to maintain a consistency in the quality of liquid being expelled from the hose. It's best if you can mix it in small, easy-to-replenish quantities as you apply.

On-Site Suggestions

• Proper cleaning and filling of cracks on the asphalt surface you intend to spray-coat is paramount to a successful application. Always make sure you have a few extra spray hose tips that vary in size in the event a new spray style is required or the one you currently are using becomes damaged.