GRIT BLASTING | Welcome to Marinas Gulf Engg

GRIT BLASTING

This is used in a multitude of applications both in-house and on-site with a variety of media such as garnet, aluminium oxide, mixed alumina and stainless steel grit. The application is a refined process depending on the surface, the environment and the equipment involved. It can be a mechanical, semi mechanical or manual process with numerous aspects to consider.Blasting is used to remove build up of paint and corrosion from surfaces; it can also be used to achieve a profile to which coatings can adhere, thus increasing life expectancy making the process more cost effective.We undertake grit blasting of metal components up to almost any size to blasting standards SA 2, SA 2.5 & SA 3 depending on the specification and also carry out a brush off (flash) blast SA 1 to remove light rusting.

Anti-foul Removal

With a wide range of blast media at our disposal and many years of experience in this field, we can remove anti foul from fibreglass, steel and Ferro-cement hulls.We will remove 99% of all the old surface coatings, leaving the original gel coat with a fine etched finish that is clean and free of any greases or oils. This process will also expose any weaknesses in the gel coat such as blistering or voids thus allowing them to be filled prior to the re-application of the surface coating. Our highly trained operators can ensure that the whole process is carried out with minimum down time and to the best quality, giving uniform finish and leaving a minimum amount of preparation before re coating.

Steel Boats – Pontoons

Blast cleaning to SA 2.5 cleanliness will remove mill scale and rust to present a uniform and clean surface. This will provide a clean and profiled surface that will give the paint system its design requirements.

 

Expensive protective coatings applied directly over mill scale rust corrosion and inadequately prepared steel surfaces may lead to failure of the entire coating within a very short period of time. The action of corrosion under the mill scale or rust will produce cracking and damage to the coating and expose greater areas to corrosion.

 

Painting over mill scale, rust and corrosion, however tempting, is a futile exercise, as it merely covers an underlying problem for future failure.