1 innovation in spray technologies to reduce emissions reduce waste with spray technique training in...
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Innovation in Spray Technologies to Reduce Emissions
Reduce Waste with
Spray Technique Training in painting & coating operations
Sue Schauls
March 2007
![Page 2: 1 Innovation in Spray Technologies to Reduce Emissions Reduce Waste with Spray Technique Training in painting & coating operations Sue Schauls March 2007](https://reader036.vdocuments.mx/reader036/viewer/2022062417/5517cb79550346892b8b4d0a/html5/thumbnails/2.jpg)
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Innovation in Spray Technologies to Reduce Emissions
Reduce Waste with
Spray Technique Training in painting & coating operations
Topics to cover today:
•STAR® Program
• Upcoming Auto Body MACT Standards
• New Tools
•Spray Techniques to Reduce Waste
![Page 3: 1 Innovation in Spray Technologies to Reduce Emissions Reduce Waste with Spray Technique Training in painting & coating operations Sue Schauls March 2007](https://reader036.vdocuments.mx/reader036/viewer/2022062417/5517cb79550346892b8b4d0a/html5/thumbnails/3.jpg)
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Spray Technique Analysis and Research
STAR® Training Program
• Developed spray technique training to reduce waste in paint operations
• Equipped and trained 41 STAR schools in 25 states in 10 years
• Development of two new tools:– LaserPaint targeting
device – VirtualPaint virtual reality
training system
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Upcoming Auto Body MACT Standard
• Due out for review by June 2007
• Met at RTP EPA office July 24, 2006
• No draft has been available
• Final Rule December 31, 2007
• MACT standard to will cover HAPs (not VOCs)
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5MACT STANDARD MAY INCLUDE:
• Painter certification and training– Training on spray technique– Written certification – No skill certification - so no
minimum transfer efficiency– No point of sales restrictions
• Required filtered exhaust from painting area or booth
– May or may not require booth• Reporting requirement
– Certification proof for painters– Paint booth maintenance records
such as filter change out schedule
– Certification of compliance– Annually or semi-annually
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New Tools
• LaserPaint targeting devicewww.LASERPAINT.us
• VirtualPaint virtual reality paint training systemwww.VirtualPaint.us
• Mobile Outreach for Pollution Prevention (MOPP)
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LaserPaint Targeting Device
has three major functions:
• Distance Control
• Overlap
• Targeting
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LaserPaint (shameless sales plug)
• $295.95 www.LaserPaint.us
• Invented at Iowa Waste Reduction Center
• 319-273-8905
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9LaserPaint laser pointer
Always watch your materials first and use your side vision to watch the laser pointer!
www.LaserPaint.us
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VirtualPaint
Changing the dynamics of traditional
hands-on painter training
www.VirtualPaint.us
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11VirtualPaint
virtual reality paint training system
• Highly accurate representation of spray patterns & coating accumulation
• Realistic application technique simulation– Realistic stand-off distance– Spray gun orientation– Traverse speed– Spray gun triggering– Spray pass overlap
• Accumulation mode gives immediate feedback
• Practice time without clean up
www.virtualpaint.us
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12Spray Technique Analysis and Research
STAR
Spray Techniques1) Spray gun distance to part2) Perpendicular to surface 3) Spray angle 4) Consistent 50% overlap5) Banding and edging6) Reduce lead and lag7) Spray pattern size & shape8) Targeting – plan of attack9) Transfer Efficiency10) Build Efficiency11) Practice time
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13Spray Techniques
Spray gun distance to part
Spray gun distance to part should follow recommendations from paint sheet & gun set up from manufacturer.
• Keep gun distance at optimal distance• Be consistent – varied distances leads to
an inconsistent film build• HVLP guns 4” to 6” for auto body• Use a LaserPaint targeting tool for
distance control• Paint performs best at optimal spray
distance
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Spray Techniques
Spray gun distance to part
Spray gun distance to part at optimal distance
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Spray Techniques
Perpendicular to surface
• Keep the spray pattern perpendicular to the surface
• No arcing or wrist rotation• Use a fluid motion when you
spray to reduce material consumption
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Spray Techniques
Perpendicular to surfaceKeep the spray pattern Perpendicular to surface
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17Spray Techniques
Spray Angle
• Avoid wrist rotation • Pitch (wrist up and down) or
(heel & toeing)
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18Spray Techniques
Overlap
Consistent 50% Overlap
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19Spray Techniques
Banding & Edging
• Technique used to reduce overspray on a flat panels
• Can be used on edges of parts.
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20Spray Techniques
Reduce Lead and Lag
• Excessive lead and lag wastes paint
• Adds to toxicity of paint-related waste such as paper and masking
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Spray Techniques
Pattern Size & Shape
• Always keep as much of the spray pattern on the part as possible.
• Shape the pattern to the part
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Spray Techniques
Pattern Size & Shape
Slender pieces should be coated with a narrow horizontal or vertical pattern
• For a vertical pattern, the gun speed should be increased to account for the added time the part is in the pattern.
• Gun motion should always be lengthwise to the part.
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23Spray Techniques
Plan of Attack
• Study the geometry of the part to be sprayed and visualize size and shape of spray pattern.
• The sequence should feel comfortable and be consistent throughout the job.
• Use partial trigger, edging and full fan banding when appropriate.
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24Spray Techniques
Plan of Attack
• Adjust your plan of attack
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25Spray Techniques
Transfer Efficiency
• The amount of paint that is applied to the part.
• Even good painters can have a transfer efficiency (TE) of 50% or less.
• 10% increase in TE can have dramatic effects on costs and air emissions
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26Spray Techniques
Transfer Efficiency
• 10% increase in TE can have dramatic effects on costs and air emissions
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27Spray Techniques
Build Efficiency
• The amount of part surface that has the optimal mil build or target mil build on it.
• Very high TE can still produce low quality of work if the target mil build is not achieved.
• Consistency is the key to build efficiency.
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28Spray Techniques
Build Efficiency
• Consistency is the key to build efficiency.
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Spray Techniques
Practice Time
• Wet paint in booth• Virtual reality training system
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30Spray Techniques
Practice Time
VirtualPaint training system • Instrumented HVLP spray gun• Wide range of spray gun settings
– Coating flow rate– Air pressure– Fan pattern size
• Visual and statistical feedback – Overspray– Mil build average– Coating accumulation mode– Transfer efficiency– Paint consumption– Elapsed time
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31Spray Techniques
Practice Time
STAR training
• Actual in booth training plus class-room lecture
• New STAR schools can be set up
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New Tools
• LaserPaint targeting devicewww.LASERPAINT.us
• VirtualPaint virtual reality paint training systemwww.VirtualPaint.us
• Mobile Outreach for Pollution Prevention (MOPP)
![Page 33: 1 Innovation in Spray Technologies to Reduce Emissions Reduce Waste with Spray Technique Training in painting & coating operations Sue Schauls March 2007](https://reader036.vdocuments.mx/reader036/viewer/2022062417/5517cb79550346892b8b4d0a/html5/thumbnails/33.jpg)
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Innovation in Spray Technologies to Reduce Emissions
Reduce Waste with
Spray Technique Training in painting & coating operations
Topics covered today:
•STAR® Program
• Upcoming Auto Body MACT Standards
• New Tools
•Spray Techniques to Reduce Waste
![Page 34: 1 Innovation in Spray Technologies to Reduce Emissions Reduce Waste with Spray Technique Training in painting & coating operations Sue Schauls March 2007](https://reader036.vdocuments.mx/reader036/viewer/2022062417/5517cb79550346892b8b4d0a/html5/thumbnails/34.jpg)
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Reduce Waste with
Spray Technique Training in painting & coating operations
Sue Schauls
www.LaserPaint.us
www.VirtualPaint.us
March 2007