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Keeping Cool Under Pressure: Heat-Ready Tips for Spray Equipment

July 28, 2025

When the summer sun is relentless and the heat index climbs into the triple digits, spray rigs feel the burn just like we do. But while we can seek shade and hydrate, your rig relies on smart maintenance and prep to survive the season.

Here’s how scorching temperatures impact your equipment—and what operators can do to keep cool under pressure.

Shield Your Rig: Storage & Shade Tactics

Leaving your spray rig exposed to direct sunlight is a surefire way to shorten its life. Prolonged UV and heat exposure can degrade rubber hoses, warp tank linings, and cause premature wear on seals and plastic fittings.

Best practices include:

  • Parking rigs in covered areas or under UV-protective tarps
  • Using heat-reflective covers to shield exposed components
  • Positioning rigs to avoid afternoon sun, when temperatures peak

The goal? Keep your equipment out of “oven” mode whenever possible.

Daily Pre-Spray Checks in Extreme Heat

Summer heat introduces new risks—rubber softens, metal expands, and fluids thin out. Before each job, operators should run through a targeted pre-spray checklist to spot red flags early.

Your checklist might include:

  • Inspecting hoses for swelling or softness
  • Checking tanks for warping or discoloration
  • Monitoring fluid levels and ensuring coolant is topped off
  • Testing pump pressure to catch performance dips

These quick checks help prevent major malfunctions later in the day.

The Value of Heat-Resistant Seals & Hoses

Not all parts are created equal. Standard rubber hoses and seals can crack, stretch, or leak under prolonged heat exposure. Investing in heat-resistant components isn’t just smart—it’s cost-saving.

Why it matters:

  • Heat-rated hoses resist warping and bursting in high temps
  • Specialized seals maintain pressure integrity under stress
  • High-temp materials extend the life of frequently replaced parts

Think of it as giving your rig a summer wardrobe—designed to perform under pressure.

Cool-Down Routines for Extended Engine Life

Spray rig engines work hard in hot weather. Letting them cool properly can make all the difference in longevity.

Cool-down tips include:

  • Letting the engine idle briefly post-spray to stabilize heat levels
  • Avoiding abrupt shutdowns after heavy use
  • Regularly cleaning radiator fins and checking cooling systems

A few extra minutes of post-job attention could save hours of repairs down the line.

Final Thought: Just as your crew adapts its pace and hydration strategy in midsummer, your spray equipment needs its own version of summer survival tactics. With the right prep, materials, and mindfulness, your rig can breeze through the heat—and keep delivering top performance no matter how high the mercury climbs.

Want help sourcing heat-resistant parts or setting up your rig for summer? Contact Graham Spray Equipment today to help your rig beat the summer heat!