Silicon carbide grit is much harder than the rocks typically tumbled, making it an effective abrasive for rock tumblers.
Quality silicon carbide grit features angular particles with sharp points and edges that efficiently abrade rocks within a tumbler barrel.
Hardness
Silicon carbide, also known as carborundum, is a hard chemical compound composed of silicon and carbon that occurs naturally as the mineral moissanite but has been mass produced since 1893 for use as an abrasive. Silicon carbide has long been utilized as an aggressive abrasive, with applications including grinding wheels and sandpaper as well as blasting with compressed air blasters – it works particularly well when rapid material removal is required. Silicon carbide also finds uses in bulletproof vest ceramic plates as well as high temperature/high voltage electronics devices.
Manufacturers craft silica carbide grit into blocky, angular grains that consistently break apart into sharp cutting edges. Its hardness reaches nearly 9.5 on Mohs scale – only surpassing diamond and boron carbide in terms of hardness.
Hardness makes grit ideal for rock tumbling, where particles are crushed into angular particles to abrade rocks during tumbleing. Compared to beach, river, or wind-blown sand that has an approximate Mohs hardness of 7, grit has far higher hardness ratings that help abrade rocks more effectively during tumbling.
Quality silicon carbide grit’s angular nature makes it an excellent choice for glassworks, particularly etching. When mixed with aluminum oxide in a shot blasting machine, it produces controlled etches that allow artists to produce patterns on glass. Furthermore, this versatile material is perfect for sanding stone and masonry surfaces before sculpture or building projects begin.
Angularity
Silicon carbide grit is one of the hardest substances available, comparable in hardness to diamond but much cheaper and more durable. Used widely in manufacturing abrasive materials, cutting tools, blasting media as well as advanced ceramics and refractories applications as a raw material; its hard surface resists acid degradation while being temperature stable and acid proof.
Although silicon carbide occurs naturally as the mineral moissanite, most of the abrasive grit sold is synthetically produced using an electric resistance furnace and heating a mixture of petroleum coke and sand to high temperatures before crushing and screening into various sizes for manufacture into grit or powders for sale.
Silica grit with proper grades features angular particles, making it easier for it to abrade rocks during tumbling. Furthermore, its sharp point and edge help it cut through tough surfaces like rocks, metal and glass for cutting-edge stone carving. It makes the ideal material for use when carving stone and glass surfaces.
Black silicon carbide grit can be found in items such as sandpaper and grinding wheels used for abrasive blasting applications, including high-pressure blasting systems such as those offered by blasting companies. As it withstands these high pressure levels, it allows it to work on difficult surfaces more efficiently than other abrasives; chemical corrosion resistance is another benefit; along with good thermal conductivity it offers excellent efficiency when blasting on complex surfaces.
Recyclability
As an abrasive, silica carbide grit is used to power away rust or prepare surfaces for painting. Additionally, it serves as the key component in abrasive blasting media – this process employs special machinery that shoots silica carbide grit at high speeds across hard surfaces; its angular edges remove coatings while leaving behind a clean, smooth finish on surfaces.
Recycling of grit for reuse involves submerging it in acid solution in order to dissolve and remove impurities from its composition, such as hydrochloric, nitric, sulfuric acid or any combination of these acid solutions. Once used up it must then be exhausted through filtration for disposal.
Based on your method of choice, this process may produce up to 99% min pure silicon abrasives. This purity plays an integral part of their performance: pure abrasives have higher hardness ratings compared to other forms of abrasives and hence last longer whilst producing less dust.
Silica Carbide rock tumbling grit is an economical, low cost alternative to other abrasives, available in various bag sizes to use in tumblers and lapidary equipment. Shipped directly to customers’ doors with secure packaging designed to prevent leakage and contamination, Silica Carbide grit makes an excellent way of supplementing existing kits or purchasing additional abrasives for larger machines and lapidary tools.
Safety
silica carbide’s high hardness makes it an excellent choice for blasting. Its versatility enables it to work on various materials quickly and is often preferred over other abrasives; additionally, its aggressive nature is great at dislodging stubborn coatings like rust or paint. Abrasive blasting is the process of using specialized machinery to shoot media at high speed across surfaces; silicon carbide makes an ideal material choice due to its power to blast away deposits quickly while simultaneously prepping surfaces for coatings or further steps.
Manufacturers typically mold silicon carbide grit into an angular grain shape before subjecting it to a rigorous particle size-grading and classification process, to ensure it satisfies established industrial standards and customer requirements.
Once sorted and graded, the material undergoes a cooling process to reduce any structural changes that could compromise its effectiveness. Once stored in dry environments until needed, this material is nonflammable with no odor that doesn’t react with water; however, direct contact can cause irritation to skin and eyes, so appropriate protective equipment should always be worn when handling or storing this material.