Australian Garnet is a cost effective blasting abrasive which produces low levels of dust when blasting and attains an extremely clean blasted surface.
Commonly called ‘garnet media’ or ‘garnet sand’, Garnet Abrasive is fast becoming the preferred blasting media of many blasting contractors in North America. It is low dusting, fast blasting and has low consumption. As Garnet Abrasive has gained ground as a popular blasting media, other types of ‘Garnet’ have arrived on the scene, and if you are interested in purchasing Garnet, it is very important to understand the differences between ‘Garnet’ and ‘Garnet’.
People often talk oranges vs apples and that is definitely the case when talking about Garnet Abrasive. There are physical structural types of Garnet – Alluvial Garnet and Almandine Garnet.
- Alluvial Garnet is a mineral sand, and how you get it in the bag is how it was in the ground (all the impurities and other minerals removed obviously). Australian Garnet is in this category – it is low dust, is pink in color and has a ‘sub-angular’ shape which is perfect for blasting.
- Almandine Garnet is a rock type mineral, and has to be crushed to be a suitable size for use when Abrasive Blasting. Also known as ‘hard rock garnet’ the crushing process puts minute facture lines in all the Garnet particles which means it is very dusty when blasting, and does not recycle very well. North American Garnet, Mexican and Chinese Garnet is mostly Almandine Garnet.
Alluvial Garnet and is widely recognized as the better Garnet for Blasting. It is important to understand that there are two main sources of Alluvial Garnet in the world, these being Australia and India.