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January 30 - February 3, 2017

What are some ways to improve transfer efficiency of airless spray application?

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Selected Answers

From David Rasmussen of E2 Consulting Engineers/ PG&E on February 1, 2017:
The major aircraft manufacturer in Seattle requires the use of "air- assisted" airless sprayers for all paint operations inside their plants. Improved transfer efficiency not only saves money, but also reduces airborne contaminants and keeps their workforce  safer. I'm all for their use.

From Steve Brunner of WPC Technologies on February 1, 2017:
There are several ways to improve transfer efficiency, but first and foremost is operator training. A well trained operator will improve transfer efficiency as the operator will be able to determine if pressures are too high or too low. Additionally, the operator will be able to adjust viscosity properly and choose the proper tip size. By matching pressure, tip size and viscosity, the optimum transfer efficiency can be achieved. A caution on John's comment: one needs to be careful when moving the gun closer to the surface as orange peeling can be the result.

From john schultz of o-gee paint co on January 31, 2017:
Reduce pressure, reduce viscosity, or both. In fact, both Graco and Titan are introducing tips that reduce the pressure needed to atomize coatings without creating tails on the edges of the spray pattern. You can also improve transfer efficiency by placing the nozzle closer to the surface.

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Tagged categories: Airless spray; Paint application


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