Vapour Blasting Cabinet

One of the first machines I got hands on with was the vapour blasting cabinet.

I had never used one before and, at first, it felt strange using the thick gloves and the blasting gun.

In the workshop we had several parts that were a bit too far gone to be cleaned up by the parts washer alone. I was tasked with learning how to restore several Formula Ford suspension components. Before starting on the actual parts, I practised on a scrap piece of metal, learning the correct distance to hold the gun and the right speed to move it. Too slow and you can mark the part, too fast and you don’t give the blasting mixture enough time to do its job.

It’s funny because it’s actually quite tiring on your arms to begin with. I was quite tense at first, but once I relaxed and found a rhythm I really started to enjoy it.

After the first batch of parts had been blasted, it was then down to me to clean them thoroughly, making sure every hole, thread and surface was free from any remaining blasting media. I used plenty of cleaning fluid and compressed air to make sure everything was spotless before the parts could be inspected or rebuilt. The cabinet itself is also quite messy, so I’ve since learned that keeping the machine clean is just as important as using it properly.

What impressed me most was just how well it restored older components. Parts with surface rust, staining or years of grime could be brought back to almost new condition. More importantly, once they were clean it became much easier to inspect them for cracks, wear or other damage that would have been hidden before. That’s especially important on safety-critical components such as hubs and suspension parts.

What I Learned

Before using a vapour blasting cabinet, I thought it was simply a way of making old parts look better. I’ve since learned that’s only a small part of its job. A clean component is far easier to inspect, measure and rebuild correctly, helping to spot problems before they become failures on track.

It’s become one of those workshop tools I now use without thinking because preparing parts properly is just as important as rebuilding them correctly. Like so many things in motorsport, the time spent getting the basics right is often what gives you confidence when the car rolls out of the garage.