The Graco Mark HP XT Big 150 Electric Airless Sprayer is built for contractors who need continuous high-output spraying with gas-level power—without gas. Delivering up to 6,750 PSI from a standard outlet, this system is designed for heavy coatings and large-scale jobs where uptime and material flow matter.
What separates the Big 150 system is its ability to handle higher material volume more efficiently, reducing downtime from frequent refills and keeping crews spraying longer. Combined with the XT Motor and Amplifi™ technology, this sprayer delivers serious power from standard 120V or 230V outlets—no fuel, no engine maintenance, and no jobsite restrictions.
This unit is built to spray everything from paint and drywall mud to epoxy, silicone, vapor barriers, and 100% solids coatings, making it one of the most versatile high-pressure electric sprayers available.
With Endurance™ pump durability, ProConnect™ quick pump swaps, and quieter electric operation, the Mark HP XT Big 150 is designed for contractors who want maximum output with less downtime and lower operating costs.
Built for Professional Use
- Roofing and waterproofing systems
- Epoxy and protective coatings
- Large commercial paint and drywall jobs
- Vapor barriers and intumescent coatings
- High-production environments requiring continuous flow
What is the difference between the Big 150 and standard model?
The Big 150 system is designed for higher material capacity and longer continuous spraying, reducing downtime and improving job efficiency.
Can this sprayer handle heavy coatings?
Yes. It is built for epoxy, silicone, vapor barriers, intumescent coatings, and 100% solids materials.
Is electric really comparable to gas?
Yes. With 6,750 PSI output, this unit delivers gas-level performance while eliminating fuel and engine maintenance.
Big 150 High-Capacity System:
Designed for longer spray cycles and reduced downtime on large jobs.
XT Motor with Amplifi™ Technology:
Delivers up to 50% more usable power from standard outlets.
6,750 PSI High-Pressure Output:
Handles heavy coatings that typical electric sprayers can’t.
Dual Voltage Flexibility (120V / 230V):
Run from standard jobsite power without special setups.
Endurance™ Pump with ProConnect™:
Quick pump replacement minimizes downtime and keeps crews moving.
Wide Material Capability:
Sprays everything from paint and drywall mud to epoxy and 100% solids coatings.
Quiet Electric Operation:
Ideal for indoor jobs and noise-restricted environments.
Lighter Than Gas Units:
Easier transport and handling compared to traditional gas sprayers.
| Specifications | Details |
| Brand | Graco |
| Part Number | 18H411 |
| Model | Mark HP XT |
| Product Type | Electric Airless Sprayer |
| Configuration | Big 150 System |
| Max Pressure | 6,750 PSI |
| Max Flow Rate | 1.5 GPM (5.7 L/min) |
| Max Tip Size | .041" |
| Voltage | 120V / 230V Flex Voltage |
| Frame | Hi-Boy |
| Sound Level | 79 dB |
| Applications | Epoxy, Silicone, Vapor Barriers, Drywall, Protective Coatings |
| Weight | 161 lbs |
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