Tag Archives: Sandblasting Media

Abrasive Grade Silicon Carbide – Uses Of

Silicon Carbide Grit

Silicon Carbide Grit & Powder

The main uses for abrasive grade Silicon Carbides (Carborundum) are:

Due to the very hard structure of silicon carbide (silicon + carbon) , it has historically been used as an abrasive.  Today, there are many high tech uses for varying grades of Silicon Carbide such as electronics, brake pads, ceramics, LED’s, diodes, transistors, semiconductive research, heating elements, even jewelry.  Gone are the days when Silicon Carbide was known only as an abrasive.

How Is It Made?  Silicon carbide is  manufactured by mixing silica sand (SiO2) and finely ground coke (carbon) together, then they are put into a brick lined electric furnace and baked at high temperature, while at the same time, an electric current is passed through a conductor.  This process can take days from start to finish, with the end result being chunks of silicon carbide of varying purity.   The aggregate is then sorted, crushed, and graded.

Share

Cleaning Bronze with Glass Bead Blasting

Here is a great video and article on glass bead sandblasting.

This company is using a fine glass bead to remove bronze patina from outdoor monuments, which restores them to their original state.  I would have liked to see some before and after photos of the monuments, but the article does contain a video clip where you can see (from a distance) the cleaned and uncleaned areas.

Workers from Sterling-based Mercer Lettering and Monument Works have been  sandblasting and pressure-washing the granite stonework over the past few weeks.  The granite stones also have been treated with an organic acid designed to  preserve the grass below while removing fungi from cracks in the stone.

On Thursday, they aimed nozzles at the bronze plaques and sprayed them with  fine glass particles. That removes the patina, or green and brown film, that has  developed on the metalwork over time without damaging the metal below it, said  Graeme Everson,  the company’s owner and a National Guard veteran.

“It brings back the shine of the bronze as it was when they put it up,” he  said.

The article does not discuss the size of the glass bead used, nor the exact machine they used, but the video shows the actual operator blasting.  You can therefore see the blast pot and the operator’s protective head gear which is useful for those just starting out and not familiar with protective gear.

To see the full original article by By ALISON SHEA of The Bulletin: Jewett City monuments gleam like new – Norwich, CT – The Bulletin http://www.norwichbulletin.com/news/x1474279320/Jewett-City-monuments-gleam-like-new#ixzz21poiW0in

© Copyright (c) ALISON SHEA The  Bulletin Originally Posted May 18, 2012

 

Share

Sandblasting Media: Welcome to SandblastingAbrasives.com!

Offering a FULL line of sandblasting media, powders, and blast nozzles.

Silicon Carbide Grits 12 and 30 ANSI

Silicon Carbide Sandblasting Media

Having trouble finding a triple graded, Boron Carbide Sapphire Polishing Powder?  Or a very coarse Brown Fused Aluminum Oxide for anti-skid applications?  We offer the full line of ANSI & FEPA sandblasting media and powders, not just the most popular sizes!

Now offering a full line of Made-In-The-USA Sandblasting Nozzles, in both Boron Carbide and Tunsten Carbide.

If your order is 200 lbs or less, we encourage you to simply order online.  For orders over 200 lbs, please use our Request A Quote form, so we can provide a custom freight quote as well as wholesale pricing.

Most of our abrasives can be ordered online in small quantities, or ordered offline via a wholesale account.

Share