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Flushing high viscosity paint from your equipment

 

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This is Part 3 of 3 Insights geared toward painters dealing with the problem associated with high viscosity/high volume solid coatings.

Today’s Insight is about FLUSHING these difficult materials from your equipment after completion of the spray job... and we have 2 very simple tips to overcome these challenges and de-frustrate your work life.

A number of issues can arise if equipment isn’t flushed after spraying high viscosity coatings. The residual paint can clog the spray machine and paint lines, which will prevent the spray pump from starting up for the next job. Also, any leftover paint flakes can block filters and become caught in the spray gun tip and may compromise seals, resulting in the need to purchase new parts for the machine.

All these issues can be avoided, by understanding how to flush your equipment successfully.

First off, flushing coatings out of the lines and pump is a flow requirement rather than a pressure requirement.

 

Tip #1

Use a separate Solvent Pump. A 5:1 Graco Merker Pump works well for this application. These have the advantage of having high flow.
 

Tip #2

Simply flush the pump for at least 5 minutes to make sure that all of the coating is removed. Our experience shows that clogged equipment is often the result of residual paint left to dry and harden inside the pump.
 

Finally, we want to know what questions, challenges, and problems you’re facing, either with blasting or painting, that we may be able to solve.

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We can help with your high viscosity spray equipment

Are you certain you have all the components for spraying high viscosity coatings? Talk to us today about your coating project.