For the removal of old layer from porous surfaces, a very high pressure water jetting is preferred. The reason behind is that , the water through water jets or by jet blasting can enter inside and clean all the contaminants. Such contaminants are present inside the microscopic pores. The best part of such jet blasting is that they can simply clear the old material without touching the top layer. Loose particles, dust, and contaminants must be taken off first otherwise it will greatly impact the new application negatively. The new coating either won't stand by at all or it will have a precise lifespan by easily pull off, wearing off far more quickly than normal. All of this can be avoided by taking a few minutes prior to the application. High pressure jet blasting for surface formation is a clean and  economical way to formulate any surface. It is one form of hydro-cleaning. Hydrocleaning is a term that describes the use of water shoot at a very high speed  to clean surfaces and substantial. Training program should always be introduced so that training will be given to those who works for hydro blasting machinery. As the equipment used in hydro blasting machinery requires safety and pre -training regarding the usability of them. Hydro blasting is generally performed by a team, with each member of the team has a clear understanding  the role they are assigned to play. There must be a leader of the team , which is so-called the supervisor. He/ She would be fully qualified and well experinced in his/her work as the supervisor is the only person to handle all the team members. Supervisor must be well aware of all the equipments used in the machinery. Their is another form of blasting which is poularly known as sand-blasting. It is done by using chemicals which is least preferred. Because such chemicals are sometimes very dangerous and quite unsafe to use. They also require safety precautions otherwise can cause a risk. Few chemicals are undoubtedly eco-friendly but they are less in number.

Jet blasting Sydney experts have pointed out the gasoline powered engines as the Ist  type of engine for the unit. This engine is the best source ideal when you need to perform power washing on areas that do not have electricity supply. Their may be another situation which is highly suggested is when access to an electrical power supply is unattainable like water blasting on roofs and gutters.