SandBlasting Equipment & Supplies » Sandblast Media

Sandblasting Media | All You Want To Know

Sandblasting Expert — Thu, 21 Jul 2011 10:25:58 +0000

If you are looking for sandblasting media information, you’ve came to the right place. Sandblastinginfo.com is the Internet resource point on all aspects about sandblasting.

According to professional sandblaster operators:

“Sandblasting 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.”

The abrasive material, also known as sandblasting media, can be formed from many different materials.

- Aluminum Oxide
- White Aluminum Oxide
- Silicon Carbide Grit
- Crushed Glass Grit
- Pumice
- Glass beads
- Plastic abrasives
- Steel Grit
- Steel Shot

And even natural elements as:

- Walnut shells
- Corn Cob

In future articles I will provide you more information about each of these specific sandblasting media and even from different sandblasting media suppliers

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Sandblasting Bricks

Sandblasting Expert — Mon, 23 Jun 2008 09:22:53 +0000

Cleaning bricks with sandblasting techniques can be the perfect solution or a nightmare!

Dry sandblast cleaning is a relatively new method of cleaning recently built masonry, In spite the system has been used for many years in masonry restoration work.

Most experts prefer sandblasting over conventional wet (acid) cleaning because of possible adverse acid reactions with certain types of brick. Other designers are reluctant to permit sandblast cleaning from fear the blasting will erode the face of the brick and mortar joints. Nevertheless, with a qualified operator, proper specifications and good job inspection, sandblasting bricks is as good as any other system and is sometimes superior in many ways.

This is my recommended procedure for Sandblasting bricks:

Wait for mortar to harden. Brickwork should be completely dry and at least seven days old, preferably 14 days.
Remove all large mortar particles with hand tools before blasting. Use wooden paddle, the rough edge of a brick, or metal scrape hoe. Chisels may be used if necessary to remove hardened mortar or concrete. This “pre-cleaning” is a very important part of sandblast cleaning. Sandblast operator would irreparably damage wall if large droppings are left for him to remove by blasting.
Provide adequate protection for all non-masonry surfaces adjacent to work areas, Use plastic sheeting and duct tape to protect windows, doors, etc. If possible, painting, caulking, etc. should be done after sandblast operation is completed.
When all surfaces are prepared and protected, the operator can begin a first test cleaning.

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Sand Media Blasters Alternative

Sandblasting Expert — Sat, 26 Apr 2008 22:15:43 +0000

Sometimes Sandblasting is a labor-intensive, hazardous process that typically is accomplished with a device that blasts sand particles, metal particles or other materials at selected areas of denim garments. The process usually must be done in a room that is shielded from other manufacturing areas, and the worker doing the sandblasting must wear protective gear to prevent being hit by or inhaling airborne sand or other particles.

But now a company called TechnoLines is unveiling its latest laser-scribing system, which features a patented method for creating a worn look typically associated with sandblasting.

This OH-based firm invented the TechnoBlast technology in 1997, and since then has worked to improve and protect the intellectual property rights related to its laser-based scribing process and the software system that drives it. Last year, the U.S. patent office issued three patents to TechnoLines related to TechnoBlast. As of press time, two additional patents had been granted, and several others were pending.

This system incorporates a software program for designing the desired worn look, and a computer-driven laser that simulates the sandblasting process. The designer can use the software to select the placement of a worn section; determine the degree and shape of the worn area; and create unique abrasion patterns to be scribed onto the denim garment in a matter of seconds. For example, TechnoBlast can be used to create the popular feathered abraded look, in which whisker-like lines are scribed onto certain parts of the garment to simulate a worn-in look.

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SANDBLASTING VISUALLY & ENVIROMENTALLY OPTIONS

Sandblasting Expert — Thu, 24 Jan 2008 09:46:37 +0000

Erasing gang graffiti is costly task for any city, property owners Post-Bulletin, MN – Jan 15, 2008 Some graffiti is erased only by sandblasting , and that work is contracted out. A city ordinance requiring the quick cleanup of graffiti went into affect in.

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SANDBLASTING MATERIALS

Sandblasting Expert — Fri, 04 Jan 2008 09:30:49 +0000

Which Materials Can Be Used For Sandbasting Purposes?

First we need to diferentiate between materials to be sandblasted and materials used to sandblast.

1) Materials suitable to be sandblasted.

Glass, stone, metals, wood and plastics steel, brass, aluminum, pewter, silver, etc. In general, most materials be sandblasted except for diamond which is harder than all sandblasting media. Stone is regularly sandblasted as a way to create gravestones and memorials. Metal is sandblasted to remove rust and sharp edges or as a way to enhance adhesion of coatings and adhesives. Wood and brick is sandblasted to remove years of paint, oil and dirt and to produce a clean surface for staining and painting. Certain types of plastic can be sandblasted for decorative effects, but the work has to be done very carefully, as the plastic can be much softer than the abrasive and will wear away quickly.

2) Materials to sandbast.

By mixing air under pressure with a hard, particulate abrasive or media, material can be slowly abraded or worn away by directing the abrasive stream onto the surface of the material. The longer the abrasive stream is held in one spot, the more material will be removed. Moving the nozzle closer to the surface decreases the area being blasted, and increases the rate of material removal. By moving further away, the area increases and the rate of removal decreases. If the nozzle is held very close to the material, a hole can be abraded through the surface very quickly.

Among the abrasive media or materials used to sandblast we can find:

Sand – Single use. Lowest cost at <$0.05/lb.
Aluminum Oxide – Lasts 30-40 x over sand. Creates static charge. Moderate cost at $1.00/lb
Silicon Carbide – Lasts at least 40-50 x over sand. Highest cost at $1.60/lb Cuts faster than AO, wears hoses and nozzles faster, has no static charge, and fractures leaving sharp edges vs. rounding of AO.
Garnet
Glass Beads
Black Magic
Walnut Shells
Plastic Pellets