Nodebox compound doesnt take color5/20/2023 ![]() Measuring Scratch Depth With A Coat Thickness Gauge Minor scratches do not provide as much resistance and you can move your fingernail through it more easily. If you can put your fingernail into the scratch and hear the clicking noise as your finger bites in, it means the scratch has gone deep. The next step is to use a fingernail and gauge the depth. The whiteness of the scratch comes from the reflection of sunrays in the cut, but in more serious cases, it exposes the prime coat which is usually grey or white. The initial assessment of damage is very easy – the whiter the scratch is, the more damage has incurred. These can vary from deep scratches from a parking lot accident to minor abrasions that form over time as the vehicle comes in contact with particles, sand, and insects flying through the air. If you’re considering a rubbing or polishing compound, the most likely reason is that your vehicle has some scratches on it. How To Determine The Depth Of Scratches By Eye It drastically increases the vehicle’s resistance to corrosion, but the modern nickel-plating is not as heavy-duty as it once was. Technically not a paint coat, the car’s body parts are also coated through a chemical process in electrolyte baths. A scratch deep enough to penetrate through the primer will cause corrosion, so it’s important to address the damage as soon as possible. ![]() It’s the thickest coat of all, as it serves to protect the color from UV fading, but also scratching. The last, and most important coat is the clear protective coat. This coat determines the color of your vehicle and is mostly metallic, although some manufacturers still offer matte color options. The primed surface is then sprayed with a base paint coat. Without primer, the paint would streak, water down, and have an uneven look throughout. You may think that car paint is just a single coat on a piece of metal, but it goes deeper than that. First, a layer of primer is applied to the raw metal to create a better surface for the base coat to stick to. Polishing paint is very risky, so make sure you’ve got the right tools for the job, and do at least one test run on something far less valuable than your car. There’s a lot more going on underneath the surface, and no scratch is the same, which is why I’m going to do my best to explain why and when to use a specific compound to get the best results. However, I find this explanation to be vague and serve no practical purpose. Most guides will tell you that the rubbing compound is for buffing out scratches and the polishing compound brings out the shine. Abrasive compounds remove material from the surface they’re applied to, while wax adds material to it. The primary difference between rubbing and polishing compounds is the level of abrasion it creates. Using rubbing compound when you’re not supposed to can lead to irreversible damage to the paint and look of your vehicle, so you have to be careful. Rubbing compound and polishing compound are terms that are often used interchangeably, but they’re far from the same thing.
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