When working on a car engine, you need to consider how the components inside the engine are protected. After all, engines heat up quickly, so you need to do everything you can to keep them safe. Powder coating is a common method, although the average car restorer may not be able to do it themselves. Here are some tips to keep in mind when preparing Auto parts machining for powder coating:
Almost all details can be powder coated, be it brakes
Valve covers, brackets or even the entire car body. If in doubt whether a part can be coated, consider whether it can withstand about 350 degrees Fahrenheit. At this temperature, powder coating is baked, so if a part cannot withstand high heat, it cannot be powder coated.
Many non-replaceable parts that contain electronic components or bearings cannot be powder coated because they cannot withstand the high temperatures required. Plastic parts and internal working parts that cannot be removed also cannot withstand the high temperatures required for powder coating.
Prepare the part for powder coating by removing everything from the part, including bearings, clamps and brackets.
Use chemicals, sandpaper or beads or sand to remove the old nail.
Clean the part thoroughly with a steam degreaser or an industrial solvent such as methyl ethyl ketone. Avoid touching the part with your bare hands after this application, as something as simple as oil on your hands can cause defects in the part’s finish. Cotton gloves are very useful in this regard.
Cover all areas of the site to avoid being covered with high temperature green tape. Of course, if you choose the right powder coating, these areas can be machine cleaned, but it’s still better to cover them up. However, treatment of certain engine parts such as cylinders, valve valves, and guard surfaces is common.
Silicone caps and plugs help cover dirty faucets and other loose bolts or screws.
Proper vehicle preparation is just as important as making the right choice when choosing a powder coating shop. If the shop you choose is not qualified and experienced in the right type of coatings, your parts will be damaged and you will have to waste a lot of money. The wrong surface can also wear faster, so it has to be removed from the car, cleaned and repainted in a very short time.
Also beware of low-powder paints that do not use pre-treatment. Every car manufacturer requires vehicle parts to be manufactured before powder coating, and for good reason. Pretreatment basically removes all impurities from the surface of the part and then creates a chemical reaction that helps the paint adhere better to the part and prevents rust or corrosion. Here are some general guidelines: use iron phosphate for steel, chromate or fluoride systems for aluminum parts, and acid wash for magnesium parts.