HVLP (High Volume Low Pressure)

Content trust and applicability

Author
TD Engineering Team
Publisher
Shanghai Tudou Technology Co., Ltd. | Shanghai, China
Scope

Reference definitions for paint-cell terminology used in feasibility reviews, equipment selection, process setup, and production planning.

Best used for

Best used to create shared vocabulary across engineering, purchasing, operations, integrators, and external suppliers.

Use with caution

Definitions do not replace equipment datasheets, coating TDS/SDS documents, or site-specific compliance review.

Evidence basis

Compiled from TD engineering terminology, project scoping language, and equipment-integration workflows.

HVLP (High Volume Low Pressure) is a spray technology that atomizes paint using high air volume at low pressure (typically below 10 psi at the air cap). This produces a softer spray pattern with less overspray and bounce-back, achieving 65%+ transfer efficiency while meeting VOC emission regulations.

Why it matters in paint cells

  • Reduces overspray and material waste significantly
  • Lower spray velocity reduces bounce-back on complex parts
  • Often required to meet EPA and local VOC regulations
  • Produces finer atomization for high-quality finishes

What to watch for

  • Requires higher air volume than conventional spray guns
  • May need closer gun-to-part distance for proper atomization
  • Flow rate and fan pattern adjustments differ from conventional
  • Not ideal for very high-viscosity coatings without heating
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