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Inside Out: What To Do To Rustproof The INSIDE Of Your Frame Rails!


Inside Out: What To Do To Rustproof The INSIDE Of Your Frame Rails!

I’ve had several chassis and subframes sand blasted or chemically stripped and powder coated over the years, and it is a great way to finish up a chassis. But there are some downsides too. If you don’t have a good powder coater, or the chassis is such that access to the inside is not possible, then getting the inside protected can be a very tricky proposition and that means the powder coating will not last or protect as well as you hoped. And I don’t always suggest powder coating on every chassis, because some vehicles are never going to be “done” and that means there could be times when things need to be added to the chassis and would require ruining powder coating. In those cases it’s better to prepare the chassis correctly, with the right primers, and then paint it with a durable topcoat that you can touch up as needed. But what about the insides?

I’ve seen folks try all kinds of spray rigs, and have made a couple myself, but the truth is that something designed specifically for this is going to be smoother and easier to use. This is the Internal Frame Coating from Eastwood. It is NOT paint, but rather a coating that protects and encapsulates metal and rust so that it stops rust that does exist and keeps rust from forming on clean metal. It has a special spray tip on a hose and with some quick masking and prep you can start doing your stock or custom chassis. And because it is so easy to apply, you can always use this again later if you were to weld a new bracket to your chassis which will burn any coating or paint that is on the inside. This way you can give it all the protection it needs again in just a minute.

Of course Eastwood has all types of exterior coatings for your chassis as well, so you can choose what’s best for your application. Or use matching automotive paints of your choice. The Interior Frame Coating doesn’t impact which coating you use on the outside, so it is completely up to you. Keep in mind, that if you are going to powder coat your chassis, you will want to do that first and then use the Interior Frame Coating afterwards because the heat from powder coating will not be good for it.

Check it out in the video below. This stuff is cool.


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