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Paint inspection techniques – vary your distance!

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While I was recently on a flight from Columbus to Las Vegas to the SEMA Show with my good detailing friends DJ Mayo and Addison Good, we were having a conversation about inspecting paint and paint defects and it gave me the idea to do a quick article about the subject. Addison was talking about a metallic green Lamborghini Gallardo that he was working on, and said that when he did a closeup inspection using his Brinkmann LED light, he found it difficult to see the defects, but when he stepped back a few feet with the light, he was able to see the swirls and holograms easily. This is pretty common with metallic paints in particular, but it brings up a few good points about varying your inspection distance to see the defects, or to see different types of defects.

Back in February of 2011 I wrote an article about using different types of light sources to improve your work: Do You Want to Step Up Your Detailing Game? In that article I talked about how different light sources show off different types of defects, and how through the use of a strong LED light like the Brinkmann you can see defects that you can’t under halogen or fluorescent sources. By referring back to that article, you will see why it is so important to have one of these lights in your arsenal if you really want to produce great work.

So when you’re inspecting the level of defects in the paint either before, during, or after your paint correction, be sure to vary your viewing distance to see different types of defects. When you view from a farther distance, say 3 to 6 feet, you will see bigger issues like holograms caused by a rotary polisher. Also be sure to keep your head still, but move the light from side to side and up & down…then compare that view to moving both your head and the light at the same time. And as Addison commented, this may help to see defects on metallic paints that you might not be able to see at very close distances.

In this photo, I am inspecting this Nero Ferrari 458 Italia for holograms at a great distance. The sun is also a great way to inspect for holograms, however the work was done on a cloudy day and I couldn’t pull it outside.

For most of your general inspection needs, a distance of about 2 feet from the light source / your eyes to the surface will give you a good view of the overall condition. You’ll be able to detect scratches, swirls, haze, and other types of defects.

And when you are going for paint perfection, or you’re dealing with dark colored paints that may be challenging to finish down properly (soft paints in particular), you really want to get the light and your eyes up close to the surface to make sure you’re seeing nothing but pure reflections. I have seen black paint that looks good even in the Brinkmann light from one or two feet away, but when viewed from just 3 or 4 inches from the surface, you could detect slight swirls (from a rotary) or haze (from a D/A) that remains from the polishing process. Also be sure to move the light around and hold it at varying angles because the surface may look great when holding the light directly above it, but you could discover slight issues when holding the light at an angle while still viewing from directly above. Be thorough and methodical in your inspections, and it will greatly improve the quality of work that you’re producing…and the quality of the finish when you’re done.

On this 458 Italia in Rosso Corsa that I just worked on this past week, I needed to closely inspect the paint from just a few inches away from the surface in order to find those last remaining defects in order to get it perfect. By taking the extra time to make sure the surface shows nothing but pure reflections even from a few inches away in such a strong light source, I know that when it gets outside in the sunshine, it’s going to look absolutely ridiculous (and I mean that in a good way!).

Now grab your Brinkmann or handheld inspection light of choice, and vary the distance and angles of your next inspections to make sure that you’re achieving the best rate of correction possible!

Todd Cooperider Esoteric Auto Detail
Todd Cooperider
Esoteric Auto Detail
Columbus, Ohio
EsotericDetail.com

14 comments on Paint inspection techniques – vary your distance!

  1. Joe says:

    Inspecting the paint for defects while on a ladder is the easy part. Correcting the paint while on the ladder I find tough. Nice write up Todd.

  2. Eric Witt says:

    This is so very true, great article Todd.

  3. Paul S says:

    Good info Todd. Do you find the type of indoor lighting to have much of difference such as led , halogen compared to the brinkmann ? Was thinking of setting up some type of led light bar similar to what off road trucks are using.Seeing all the led displays at SEMA is what got me thinking in that direction.

    • Yes, they all show different types of defects, and it would be great to have a shop with LED, halogen, fluorescent, and metal halide…all switchable on and off independent of one another! Even if I had all that, I would still use the handheld for the really close inspections and stuff down low.

  4. Todd says:

    Great information as usual Todd, thanks for providing such a reliable source of information for amateurs like me!

  5. mike says:

    Todd, which 458 do you like better in person, the black or the red ? I really love both of these colors. I saw one in yellow and thought it made the car look way less classy.

    lmk what you think.

    • Well they both look stunning, just in different ways. It’s hard to beat a red Ferrari as it’s the iconic color for the brand. When polished and clean, the Nero (black) model looks absolutely insane. But in terms of classy looks, I think that the Grigio Silverstone is one of the best looking 458′s that I’ve seen and worked on.

  6. kostas skourtis says:

    Todd,

    Thank you for these ‘details’ that sometimes make all the difference in the outcome.

    From personal experience, when inspecting in the sun (and since I can’t move the sun around) I find it helpful to vary the angle of my surfaces (e.g open the hood or trunk in different angles).

    Once again keep your pro tips coming!

    K

  7. Pat Fowler says:

    I’ve used drywaller’s stilts on occasion to be able to get up over some trucks and vans.
    I’m more mobile, and not scared about a ladder mishap.
    Of course I wear soft clothing in case I touch anything.

  8. Dawood Pasha says:

    HI Todd;

    Thanks for all the sharing, can u please send me the various types of coating and painting inspection Techniques in PDF form i need a study material.

  9. Willie v says:

    Nice pic! As always, Todd at the top of his game and the detailing world.

  10. Tony Kiger says:

    Great tips as always Tom.

    Just worked on a heavily swirled and minor scratched ’08 VW GTI and it was black with a heavy amount of silver flake in it and stepping back a few feet was a must because up close halograms would fade away in the metallic flake.

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