what is the best humidity to paint a car
You lot are making dinner on Sun nighttime. You lot bake your food at the temperature specified in your recipe. Yous know exactly how long your nutrient takes to cook, and no variables affect the outcome.
Now, information technology is Mon morning, and you are selecting the temperature for your pigment booth. This time, it is non and so piece of cake. The blanket you are using plays a big factor, as well equally the size of the object you lot are painting and the humidity level in and effectually the finishing surround.
Selecting the right temperature settings for paint booths can be tricky. Luckily, Global Finishing Solutions' (GFS) experts have the answers to your questions. Here is a short guide on how to correctly set the temperature in your pigment booth:
Painting Automotive Refinish Applications
In the automotive industry, it is no hugger-mugger that increased throughput equals increased profit. That is why proper temperature settings for paint spraying are and then important.
For waterborne paint, the recommended berth temperature is between 70 and 75 degrees, or 5 degrees in a higher place ambient temperature, whichever is greater.
"For instance, if it is ninety degrees in Houston when you are painting, you should set up your booth's temperature at 95," said Jason Garfoot, senior technical advisor for GFS. "That will cause the burner to intermittently plow on, burning the humidity out of the air. This allows waterborne paint to dry out about twice as fast."
When using solvent-based paint, it is critical to not exceed ambient temperature.
"If it is 90 degrees outside, you want to keep the temperature of the berth at 90. You should also select a slower hardener and reducer for that temperature. Yous practice not want the burner kick on," Garfoot advises. "The pigment is going to naturally dry fast. If you lot advance the process too much, the paint will dry too apace, causing bug such every bit splotchy paint, adhesion issues or muddied pigment jobs for base of operations coats, and brittle, hazy or dull clear coats."
Curing Automotive Refinish Applications
For automotive pigment with a catalyst to dry, a paint booth must be a minimum of 55 degrees Fahrenheit. For automotive paint booths with an air heater, the rule of thumb is that for every fifteen-degree increase above lxx degrees, a coating will cure near twice equally fast (assuming 50 percent relative humidity). Similarly, for every 15 degrees below 70 degrees, a coating volition have about twice as long to cure.
When curing in a non-heated paint booth, the amount of heated air exhausted from a heated building matters — peculiarly in cold climates. For instance, if the outside temperature is 25 degrees, and your store has 150,000 cubic feet of heated air, a non-heated booth at 12,000 cubic feet per minute (CFM) will exhaust all of the store's heated air in just 12.5 minutes, making it necessary for the building'due south heat system to replace it.
Painting Industrial Applications
In industrial applications, determining the correct temperature for your paint berth is more complex. When setting the temperature, you starting time want to consider the blazon of coating you lot are applying — no two coatings are the same. Additionally, a waterborne coating from one pigment manufacturer is not necessarily the same as a waterborne coating from some other company.
"Fluctuations from higher ambient daytime temperatures, forth with cooler morning and evening temperatures, can create a challenging surroundings for maintaining recommended paint coating awarding temperatures," said Royce Day, industrial product managing director for GFS. "Big temperature fluctuations, if uncontrolled, can negatively affect paint coating viscosity and solvent blending during awarding. It can also result in colour distortions, wet film thickness variations and solvent popping."
With the exception of California, waterborne pigment is relatively new in the U.S. Equally a result, there is a big learning bend for technicians. What remains constant: The near common temperature for painting industrial products is betwixt the loftier 60s and low 70s.
Curing Industrial Applications
Information technology is all-time to follow the manufacturer's recommendations for temperature settings when curing. You practise need to consider what yous are painting, though. The size of the object will bear upon how long it takes to dry, due to the corporeality of time needed to heat the product's surface. A big yacht, for example, will take much longer to dry than a minor part.
Humidity should likewise not be underestimated. An 85-degree summertime afternoon in the Midwest is not the aforementioned every bit an 85-degree spring afternoon in the dry estrus of the Due west Coast. Painting the same object with the same coating will have longer to dry out in the humidity of Wisconsin than in the dry air of Arizona.
Painting Aerospace Applications
Similar to other industries, temperature settings are also largely driven past coating types for aerospace applications.
Painting between 70 and 75 degrees, with humidity between 40 and 60 pct, is ideal for well-nigh commercial aircraft, business planes and military machine jets. Stealth coatings, in particular, require a narrow temperature range and specific humidity level to adhere properly. When humidity levels are controlled, the booth tin can provide big dividends.
Cost savings for aerospace paint booths are often realized through energy recovery. A GFS shipping pigment berth at Langley Air Force Base of operations used for F-22 Raptors undergoing brusk-term repairs consumes simply i-fifth of the energy of their previous booth.
"We tune the mechanical equipment and controls systems, and ensure they operate to the client's requirements," said Brandon Leinon, senior applications engineer for GFS. "We spend a lot of time with the customer — training them on how to utilise and service their equipment. The vast bulk of training fourth dimension focuses on operator interface and temperature controls. We tailor that procedure to the customer, so they understand proper temperature settings."
Curing Aerospace Applications
Due to the highly sensitive electronics in aircraft, they must exist cured at a lower temperature than vehicles or industrial equipment — typically no more than than 120 degrees. If removed from an aircraft, parts and components may be cured at temperatures that accomplish 160 to 180 degrees.
"In an aircraft pigment booth, you have this huge infinite and volume of air that you are trying to control," Leinon said. "It is of import that blueprint considerations are made to provide uniform airflow patterns inside the booth while ensuring that the air mixes properly and reduces pockets of warm air."
Following manufacturer's recommendations is your best bet when setting the temperature in a paint booth. And at GFS, our service does not stop at the point of auction. Our experienced team of project managers, technicians and sales consultants are always ready to assistance our customers with questions about pigment booth temperature settings.
Source: https://www.globalfinishing.com/2018/09/05/what-is-the-correct-temperature-setting-for-my-paint-booth/
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