Sprayer Quality and Fingering
At 5:04 in
Airless Spraying Tips and Tricks | YOUR QUESTIONS ANSWERED!
What happens here
The quality and size of your sprayer significantly impact the likelihood of 'fingering' (uneven spray patterns). A larger, more powerful pump can maintain consistent pressure and keep up with the demands of various tip sizes over longer durations. Conversely, smaller, less expensive 'do-it-yourself' pumps (e.g., from Home Depot or Lowe's) are designed for average paints and may struggle with thicker coatings. When these pumps struggle, the pressure at the gun can fluctuate significantly, leading to dead banding or hour-glassing in the spray pattern, which manifests as fingering. Professional-grade pumps are less prone to these issues due to their superior build and pressure regulation.
Goal: This step clarifies the relationship between sprayer quality, pump size, and the occurrence of 'fingering' in the spray pattern.
Tools and materials
- Paint Sprayer (DIY grade)
- Paint Sprayer (high quality)
- Spray Tip
- Average Paints
- Thick Coatings (e.g
- block filler)
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