All About Low Pressure Sand Blaster

All About Low Pressure Sand Blaster

Most sand blasters work similarly. Sand blasting, itself, has grown in popularity in metalworking and woodworking alike. If you’re an avid DIYer, you’ve probably considered using a sand blaster to clean up rough surfaces.

In most cases, a low power sand blaster will be your best-available tool. While all sand blasters work by using finely ground silica sand, low pressure blasters can protect a surface while preventing long-term erosion.

How Does a Pressure Blaster Work?

low pressure sand blaster might be a great commercial tool, but it’s also fantastic for homeowner use. It’s a lot easier to use than high-grade professional blasters.  A pressure blaster features a large, silica-containing canister. The canister has a high pressure, and it “fires” sand at a pre-designated surface. Most pressure blasters are two-handed, but smaller models exist.

Why Should I Use a Low-Pressure Blaster?

Some models have variable pressure modes. Others, meanwhile, are exclusively low-pressure sand blasters. A low-pressure sand blasting gun requires little cleanup, maintenance and user experience. Many feature enclosed canisters, and most can be reused once a new canister is attached. That said, a canister’s sand can’t be collected and reused.

A low-pressure sand blaster can blast thin panels without distorting them. So, they’re useful for blasting fragile surfaces. In fact, a lot of DIY artists use low-pressure blasters to blast floor pan chassis. While a low-pressure blaster might take longer to use than a high-pressure model, it’s generally better at maintaining accuracy.

The Importance of an Enclosure

Regardless of the model used, sandblasting is messy. If you’re going to use a sand blaster on a low-pressure mode, you should surround the area with tarps. Tape together any edges, and make sure you’re able to recover any grit which leaves the area. Remember: A sand blaster’s expelled grit will become dustier, finer and more difficult to gather with every use.

Because of this, an enclosure is necessary. Even when working on metal surfaces, grit can be difficult to gather. Plus, an unenclosed project area can result in health hazards later on. Enclosed spaces typically require less air pressure to work in, too.

Getting the Most Out of Your Project

If you need to work on thin panels, fragile metal surfaces or small metal sheet segments, you should consider using a low-pressure sand blaster. At the end of the day, you’ll get more out of your project in terms of accuracy, efficiency and maintenance reduction. If you have a model which can be used at lower pressures, turn it to about 70psi. Otherwise, stick with a low-pressure model for most of your projects.

Source

http://www.practicalmachinist.com/vb/general-archive/sandblasting-low-cfm-advice-appreciated-80547/

http://www.mig-welding.co.uk/sandblasting.htm

Categories: Home Decor

About Author