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Bead blasting Introduction

Bead blasting is the process of removing surface deposits by applying fine glass beads at a high pressure without damaging the surface. It is used to clean calcium deposits from pool tiles or any other surfaces, and removes embedded fungus and brighten grout color. It is also used in auto body work to remove paint.

Bead blasting is a form of high pressure cleaning of a surface that is less damaging to the surface than typical abrasive blasting using small sharp particles such as quartz sand. One of the most common materials used in bead blasting are small spherical particles of glass that are shot with air pressure at a surface to remove coatings, or to polish it, but other types ofbead materials are also used in the process, such as silicon carbide and stainless steel beads. While ball-shaped glass beads produce the smoothest finish to a surface, ground quartz can also be used to give it a more shiny, coarse surface that is easier to coat with paint and is more electrically conductive.

Air bead blasting is a fine method of cleaning metal surfaces such as aluminum, stainless steel, and titanium used in the automotive industry, and softer metals used in jewelry and other decorative parts such as brass, silver, and copper. It’s considered a low-cost process because the beads themselves are relatively inexpensive and the air pressure equipment can be powered in the same way as common pneumatic tools. The process is used to clean corroded metal, to remove cosmetic flaws, and to prepare surfaces for paint or other coatings.

In glass bead blasting, the beads are made from a lead-free, soda-lime type of glass that will not harm the environment or ground water if bead residue is washed off into the water supply. Much of the bead material that is used in a blasting process can also be recovered by vacuum systems, and the beads are durable enough that they can be recycled into the blasting process up to 30 times. The finish produced by using glass bead blasting is known as a satin look, which is a medium-level cross between a dull finish and a high-gloss finish.

Where bead blasting is meant to do minimum possible damage to a surface, it is often referred to as peening. Peening is used to clean wood as well as metal, and other materials that would be more prone to breakage in the blasting process than metals such as concrete orceramic tile. It is also commonly used to clean very thin metal connections or welds where eroding the surface material could otherwise damage structural integrity or the viability of an electrical circuit. A bead-blasted surface also tends to be hardened through compaction, especially in the case of metals, which gives it increased fatigue resistance and better resistance to future scratches or other deformations.

Wet bead blasting is another variation on the process of bead blasting that uses both beads and a stream of water. It requires less energy than typical air blasting methods, and allows for easier clean up of the beads as they are mixed into the water. It is commonly used to clean various types of building stone, including hard stones such as granite, flagstone, or concrete, and softer stones like sandstone and clay brick. By combining the two materials in the blast process, low pressures can be used with ordinary tap water, and any unrecycled residue is considered safe for disposal in residential landfills.

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Wet abrasive blasting Introduction

Common features include: the ability to use extremely fine or coarse media with densities ranging from plastic to steel, the ability to use hot water and soap to allow simultaneous degreasing and blasting, elimination of dust—so silicacious materials can be used without worry, hazardous material or waste can be removed without danger—e.g., removal of asbestos, radioactive, or other poisonous products from components and structures leading to effective decontamination.

The process is available in all conventional formats including hand cabinets, walk-in booths, automated production machinery and total loss portable blasting units.

Process speeds can be as fast as conventional dry sand blasting when using the equivalent size and type of media. However the presence of water between the media and the substrate being processed creates a lubricating cushion that can protect both the media and the surface from excess damage. This has the dual advantage of lowering media breakdown rates and preventing impregnation of foreign materials into the surface. Hence surfaces after wet blasting are extremely clean, there is no embedded secondary contamination from the media or from previous blasting processes, and there is no static cling of dust to the blasted surface. Subsequent coating or bonding operations are always better after wet blasting than dry blasting because of the cleanliness levels achieved. The lack of surface recontamination also allows the use of single equipment for multiple blasting operations—e.g., stainless steel and carbon (mild) steel items can not be processed in the same equipment with the same media without problems.

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Abrasive blasting Introduction

Abrasive blasting is the operation of forcibly propelling a stream of abrasive material against a surface under high pressure to smooth a rough surface, roughen a smooth surface, shape a surface, or remove surface contaminants. A pressurized fluid, typically air, or a centrifugal wheel is used to propel the blasting material (often called the media). The first abrasive blasting process was patented by Benjamin Chew Tilghman on 18 October 1870.

There are several variants of the process, such as bead blasting, sandblasting, sodablasting, and shot blasting.

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Soda blasting Equipment

Sodablasting is a process in which sodium bicarbonate is applied against a surface using compressed air. An early use was to restore the Statue of Liberty in the late 1980s.[1]
Sodablasting is a non-destructive method for many applications in cleaning, paint stripping, automotive restoration, industrial equipment maintenance, rust removal, graffiti removal, molecular steel passivation against rust, oil removal by saponification and translocation, masonry cleaning and restoration, soot remediation, boat hull cleaning and for food processing facilities and equipment.

Sodablasting Equipment
A sodablaster is a self contained system that includes a blast generator, high pressure compressed air, moisture decontamination system, blast hose, and a blast nozzle. The blast nozzle in sodablasting applications is not a typical wear part, as a result nozzles can be ceramic or metal, such as tungsten carbide.
The blasting material consists of formulated sodium bicarbonate (also known as baking soda). Blasting soda is an extremely friable material that has micro fragmentation on impact, literally exploding away surface materials without damage to the substrate.
A sodablaster differs from a sand blaster in that the sodablaster is a direct pressure system, not gravity-fed. The blast media is directly forced out of the pressure vessel, not introduced into a stream of compressed air.

Sodablasting Applications
Sodablasting can be used for cleaning cars, boat hulls, masonry, and food processing equipment. Sodablasting can also be used to remove graffiti[2] and to clean structural steel. Soda blasting is very effective for mold and fire/smoke damage cleanup as it cleans and deodorizes.

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WHAT IS SODA BLASTING?

Sodablasting came about through a project to renew the Statue of Liberty in the late 1980′s and early 1990′s.

Sodablasting is a revolutionary process that can remove paint, grease, and neutralizes rust without damaging metal, glass, chrome or warp thin sheets of metal.

Our process uses pure granular sodium bicarbonate (baking soda) delivered efficiently and effectively through our Stripco Sodablaster by using a large volume of compressed air.

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Recycle Blasting Media Instructions

To recycle abrasive blasting material such as baking soda, sand or walnut shells, keep the abrasive material in an enclosed environment. This means that in order to recycle the material, you must use a special blasting cabinet. That being said, you almost always can recycle abrasive materials to use again many times before the material is no longer adequate to strip rust and paint from hard surfaces. Continue reading

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Natrium Soda Blasting Media

Now that you have chosen to use a Soda Blasters manufactured by Soda Works you have cleared the biggest hurdle in in claiming your place among the most productive soda blasting companies in the country. But owning a Buster Blaster system is only part of the equation. The results you obtain will vary with the type of soda blasting media you choose to use. Continue reading

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Soda Blasting Project

Soda Blasting/Media Blasting

Soda blasting and media blasting is a process in which a material is applied to a surface using compressed air.  In the late 1980′s, soda blasting was used to help restore the Statue of Liberty. There are a large variety of media blasting applications.  The media not only affects the finish, but also has to meet other requirements, such as hardness, dust control,and in some cases, food safety guidelines.

Based on our experience and the available assortment of blast media, SRP Environmental can choose the right media for your application. Some examples of the types of media we use are:

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what blasting media to use?

Q:I got my shot blaster and compressor last week and currently building a blast cabinet. I am going to be blasting alloy wheels and motorcycle frame in preparation for powder coating. I may buy a chemical stripper to remove old powder coating from the alloys. What media would you guys recommend for blasting alloy wheels etc, aluminum oxide, chilled iron ?? Do any of these products have bad points?

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