Choosing The Right Substrate For Blasting
Types of Blasting Processes
Blasting is a process usually associated with abrasive blasting. There are many different types of abrasive blasting.
- Bead blasting
- Sand Blasting
- Wheel blasting
- Bristle blasting
- Vacuum blasting
- Dry-ice blasting
- Automated blasting
- Vapour/wet blasting
- Micro-abrasive blasting
The Importance of Choosing the Right Material for Blasting
Choosing the right abrasive material is fundamental to the entire process of blasting and attaining a lasting coat on your metal surface. All types of blasting jobs are performed using specific substrates. If one is not careful enough while handling these materials, there is a high probability of the substrate getting damaged.
- For Hard Substrates:
Hard substrates, such as low-carbon steel, metallic substrates and alumina grits are used on various steelworks such as machines, appliances, engines and vehicles. These can be blasted through bristle blasting, which involves the cleaning and preparation of cast iron, aluminium and stainless steel compounds. Abrasive blasting is considered as the most reliable and appropriate technique of obtaining a visibly clean surface and an immaculate surface profile.
Moving ahead towards bead blasting, this is specifically used for creating uniform surfaces of machine parts. The go-to procedure used to blast hard substrates is sandblasting – a process widely used all over the world.
- For Soft Substrates and the Common Ones
Soft substrates are the preferred blasting procedures for removing paint and coatings from both hard and soft metals. However, soft substances are more exposed to physical damage. Even the slightest mistake can lead to an ample amount of loss. Processes such as wheel and dry-ice blasting are used for cleaning softer products such as plastic and rubber moulds.
Vapour or wet blasting, on the other hand, is used with substrates of all densities ranging from plastic to steel, which makes it one-of-a-kind blasting process. Hydro-blasting is similar to wet blasting, the only difference being that water is the sole substance used as a media blaster for cleaning internal and external surfaces of all soft and hard products.
The various remaining processes are used as add-ons to the main blasting procedures, primarily used for giving lustrous final finishes. Hence, choosing the right materials and equipment is vital before undertaking any kind of blasting job.