$8.35
CLICK THE "LEARN MORE ABOUT THIS ITEM" LINK JUST BELOW TO READ THE FULL DESCRIPTION FOR THIS ITEM.
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----> Go here to see all listings for Aluminum Oxide: <----
https://www.etsy.com/shop/NorthernWestStuff?ref=hdr_shop_menu&search_query=aluminum+oxide
----> Go here to see all listings for other abrasives: <----
https://www.etsy.com/shop/NorthernWestStuff?ref=hdr_shop_menu&search_query=abrasive
Not all sizes are pictured.
This and aluminum oxide are the two main abrasives used world wide. Aluminum oxide is the less expensive of the two.
It could be used as a filler in resins, or for special effects in paints. Also known as corundum, it's interesting that this is the same material in the precious gemstones rubies and sapphires.
This is a very, very coarse, large mesh size. It almost qualifies as a small pebble size. 5 mesh is actually an estimation. It lies somewhere between 3 1/2 mesh and 7 mesh. The individual particles measure between approximately 3 mm x 5 mm. There are roughly cube particles and elongated particles all with angular edges. I bought it to test in a vibratory finisher as the abrasive media. The particles are sharp and blocky. It's also a nice dark brown color with some color overtones both lighter and darker. It might make an interesting aggregate to try in high performance concrete. It's very hard which is what makes it a good abrasive, that and the sharpness of its particles.
The Wiki article elaborates:
https://en.wikipedia.org/wiki/Aluminium_oxide
"Corundum is the most common naturally occurring crystalline form of aluminum oxide. Rubies and sapphires are gem-quality forms of corundum, which owe their characteristic colors to trace impurities. Rubies are given their characteristic deep red color and their laser qualities by traces of chromium. Sapphires come in different colors given by various other impurities, such as iron and titanium. It occurs naturally in its crystalline polymorphic phase α-Al2O3.....it is significant in its use to produce aluminum metal, as an abrasive owing to its hardness, and as a refractory material owing to its high melting point.....
Applications:
-Filler
Being fairly chemically inert and white, aluminum oxide is a favored filler for plastics. Aluminum oxide is a common ingredient in sunscreen and is sometimes also present in cosmetics such as blush, lipstick, and nail polish.
-Paint {special interference effects like Pearl-Ex}
{Main article: Alumina effect pigment, is here: https://en.wikipedia.org/wiki/Alumina_effect_pigment }
Aluminum oxide flakes are used in paint for reflective decorative effects, such as in the automotive or cosmetic industries.
-Glass
Many formulations of glass have aluminum oxide as an ingredient.
-Abrasive
Aluminum oxide is used for its hardness and strength. It is widely used as an abrasive, including as a much less expensive substitute for industrial diamond. Many types of sandpaper use aluminum oxide crystals. In addition, its low heat retention and low specific heat make it widely used in grinding operations, particularly cutoff tools. As the powdery abrasive mineral aloxite, it is a major component, along with silica, of the cue tip "chalk" used in billiards. Aluminum oxide powder is used in some CD/DVD polishing and scratch-repair kits. Its polishing qualities are also behind its use in toothpaste.
-Composite fiber
Aluminum oxide has been used in a few experimental and commercial fiber materials for high-performance applications (e.g., Fiber FP, Nextel 610, Nextel 720). Alumina nanofibers in particular have become a research field of interest
-Aluminum
Over 90% of the aluminum oxide, normally termed Smelter Grade Alumina, produced is consumed for the production of aluminum......The remainder, normally called speciality alumina is used in a wide variety of applications which reflect its inertness, temperature resistance and electrical resistance.
In the arts, Aluminum Oxide can be used as an abrasive (see above; finer grades can be used in vibratory or rotary tumblers), and as a filler/strengthener/colorant in cements and resins for castings. Also in pozzolan cement mixes for the same reasons. Used in cement mixes it would be considered a coarse sand aggregate.
Other aggregates we carry that would be in the same extra coarse class are olivine, garnet, aluminum oxide, and river sand, here are links to them (we also have those materials in finer mesh sizes:
Garnet:
https://www.etsy.com/listing/671536301/freeship-garnet-abrasive-media-very?ga_search_query=garnet&ref=shop_items_search_2&frs=1
Olivine:
https://www.etsy.com/listing/660200394/freeship-olivine-sand-granular-very?ga_search_query=Olivine&ref=shop_items_search_1&frs=1
Aluminum Oxide:
https://www.etsy.com/listing/602288204/freeship-aluminum-oxide-abrasive-media-5?ga_search_query=aluminum%2Boxide&ref=shop_items_search_3&frs=1
River Sand:
https://www.etsy.com/listing/477407293/freeship-coarse-river-sand-concrete?ga_search_query=River%2Bsand&ref=shop_items_search_1&frs=1
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1-2 business days
I'll do my best to meet these shipping estimates, but can't guarantee them. Actual delivery time will depend on the shipping method you choose.
Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.
But please contact me if you have any problems with your order.
We're sorry, but at this time we do not ship internationally.
If you would like a smaller or larger quantity of a raw material, click the "Request a custom order" button and tell us how much you would like. Or just contact us and let us know what you'd like. We'll get back to you ASAP.
This problem usually occurs with multiple items. We have free shipping on many of our items. In your cart items will have the sum of all embedded shipping costs. If you place an order for 3 or more "FreeShip" items, you will receive a "rebate" for the excess shipping. The more items you have the greater the shipping refund will be. You can also message us to ask what the total cost of your order will be when excess shipping is refunded before you purchase.
Or, if you see "Request a Custom Order" or "Message Seller", you can request a custom order and your items will be put in a custom listing with the correct shipping. You would purchase it like any other listing.
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May 23, 2023
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Jun 26, 2021
If I have to describe this shop and its owners I would rarely find the words. It is not just the products, carefully chosen or This product, IMPOSSIBLE to be found anywhere else, it is the explanations, the customer service, the way they pack -SO NEAT that it is incredible, and fast shipping. It is the only place that has small quantities of materials that otherwise would be a pain to buy somewhere else - originally some materials they sell come in 20 lbs bags!!! Or HUGE amounts... Heck no. Where I would put all that??? For somebody like me that experiments and tries different things this shop is FANTASTIC.- I can't wait to play with all this!!! OMG, I love this shop!!! ... and you will too.
Mc'Rocks
Apr 8, 2020
Good quality and fast shipping
Alastair
Mar 28, 2020
Shipped hours after I placed the order, recieved in 2 days. Seller is prompt and immediately issued shipping rebate. Seriously impressed and order is exactly what it's supposed to be. Awesome vendor!
Abigail
Mar 14, 2020
i plan to use this in my paintings. thanks!
Donna Baek