Maintain 50% Overlap

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3 Airless Spraying Tips. Paint Sprayer How To from A to Z

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When spraying, it is essential to overlap each pass by 50% to guarantee adequate paint build-up and achieve the manufacturer's specified mill thickness. This ensures a consistent and durable finish across the entire surface. The speaker recommends using a 515 airless spray tip (e.g., Bedford 515) as it offers a good balance, allowing for sufficient paint deposition while minimizing overspray. Using too large a tip can result in heavy droplets and excessive overspray, while too small a tip may not apply enough paint, requiring slower movement or multiple coats. Proper mill thickness is often a warranty requirement, meaning paint manufacturers may not honor claims if the paint is applied too thinly.

Goal: This technique involves overlapping each subsequent spray pass by 50% to ensure uniform coverage and achieve the paint's proper mill thickness, which is vital for durability and warranty adherence.

Tools and materials

Airless Spray Tip

What they say

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two is overlapping 50% when you're spraying. So, when I'm spraying, I want to overlap 50%. That way I'm ensuring that I'm getting enough paint build on my surface. I like spraying with an a 515 tip. And the reason why I choose a 515 tip is because I can control overspray with a 515 tip. If you start to get too large of a tip size, the droplets are going to be too heavy and you can start to have overspray. Too small of a tip size and it's not going to put on enough paint. You're going to have to paint really slow. 515 is right there in the middle. But you want to overlap 50% that way you um ensure that you're getting the proper mill thickness to paint on there. Now paint specifications require a certain mill thickness. So until you get familiar with your paint and how slow you got to go or how fast you got to go and how much you got to overlap to get the proper mill thickness. Proper mill thickness is important because that's what's going to ensure you get your warranty out of your paint. If the paint fails, the company's going to come out and they're going to one of the things they're going to do is test a mill thickness of the paint. Is it on thick enough? If it's not, they're not going to warranty the paint. So, over the years of spraying, I've come up with how slow I need to go or how fast I need to go and how much I need to overlap. And that is 50%. And that ensures that I'm getting on the proper mill thickness. So, your spray powder, you're going to spray one direction, you're going to come back the opposite direction, and you're just going to overlap by 50% as you go, and you'll get good coverage by doing so. All right, tip number three is

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