A primer on using air compressors

Sep - 11 2015 | By

Priming is an important step in many interior painting projects. Whether it is a makeup primer or a paint primer, priming always helps to provide a better finishing touch and helps in increasing the longevity of anything on which it is applied. Many people have this vague concept that using a primer is time and money consuming or that it is of no use. But they generally tend to skip the long term profits in the mix of short term objectives. Primer plays a very decent role in terms of durability and provides the best look possible at the same time.

Priming application is a skilled art that needs to be implemented correctly and carefully for the job to have a perfect look. Additionally, certain conditions do require before priming gets done. Which tools to use for the operation, their effect on priming merits, demerits and other necessary requirements related to priming is something one should keep in his mind all the time. One machine which improves the usefulness in priming operation is an air compressor. It is such a tool that helps to get the job done faster and more effectively.


Most of the painting jobs look terrible until and unless they are completely dry. Initially the compressor is turned on to use some air for priming and testing the sprayer. The regulator allows to set the correct pressure for the sprayer correctly, otherwise fluctuation may cause problems. Then adjust the regulator within 12 -25 PSI, which may vary according to the sprayer. Next the air hose coupling is attached to sprayer tightly by using Teflon tape for airtight scaling. Thereafter a small amount of paint thinner is poured into paint cup and the metering valve on the compressor is opened slightly. Then priming is done on sprayer. Aim for the nozzle into a bucket and squeeze the trigger as it will start primer in a few seconds with liquid. Initially air will come out of the nozzle and then a flow of paint thinner will come out. In case of no flow, disassemble the sprayer and look for loose seals in siphon tube assembly. Finally, empty the sprayer cup of remaining thinner using funnel to return it to the original container.

So, act according to these tips to apply priming using an air compressor and achieve desired finished output.

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