Blasting Services

Blasting Services

Offering you a complete choice of products which include Blasting Services such as Abrasive Blasting, Shot Blasting, Sand Blasting and Grit Blasting.

Abrasive Blasting

We hold expertise in offering a range of Abrasive Blasting that are able to meet up with virtually all types of blasting environments. Be it on site, where need is for manoeuvrability or in fixed environment like blast rooms, these are tried and tested throughout the world. Further, the blast line range of blast machines features rugged & efficient operations with maximum site safety.

Shot Blasting

We are also leading names in the field of offering Shot Blasting service these find high industrial usage in areas like Industrial applications, Agricultural and Construction areas. Our trustworthy machines cater to the demands of several prominent industries like Siemens, BHEL, Crompton and others. Further, we also ensure that these are in compliance with defined industrial standards.

Sand Blasting

We also hold expertise in offering Sand Blasting Service on rental basis. With involved services backed by a team of expert professionals, we are capable of successfully offering finest range of Sandblasting machines as per the specific demands of our esteemed clients. Further, these machines are also highly appreciated for delivering exceptional service standards.

Grit Blasting

For ensuring high process effectiveness as well as compliance with the paint spraying efforts delivered from our end, we have with us in-house Grit Blasting facility that allow us to handle large fabrication & piping jobs, cargo baskets and others. Further, these are designed to quickly & efficiently remove large areas of paints or gel coats and are ideal for cutting back corroded metal surfaces. Other than this, the level of depth required can also be controlled by grit size as well as air pressure.

UNDERSTANDING THE ABRASIVE BLASTING CLEANING STANDARDS

SSPC/NACE AND ISO 8501

ISO 8501: was published by the International Standards Organization in 1988, after combining the content from the 1967 Swedish Standard SIS 055900 with the German DIN 55928. ISO 8501 is a pictorial standard showing the appearance of different rust grades at various levels of cleanliness, although it also contains text descriptions of the cleanliness levels. ISO 8501 ranks cleanliness levels in order of increasing work required.

Estimated surface area. ISO 8501-1 is a visual reference and does not explicitly state percentages.

The effective life of a coating of anti-corrosive paint applied to a steel surface is to a very large extended dependent on how thoroughly the surface has been prepared prior to painting. It is also important to be able to specify clearly the quality of preparation required in each particular case. Accordingly a Standard has been approved, specifying four grades of rusting and a number of preparation grades, each establishing a quality grade or preparation prior to protective painting required on a steel surface in a standard rust grade. These grades are presented in this Standard as a series of prints, which provide a clearer and more rapidly appreciated definition than a verbal description. The standard has been prepared by the Swedish Corrosion Institute in cooperation with the American Society for Testing and Materials, ASTM, and Steel Structures Painting Council, SSPC, USA. In the specifications relating to preparation of surfaces prior to painting, the SSPC and SIS designations correspond as follows:

SSPC-Vis 1	SIS 05 59 00
SSPC-SP5	A Sa 3, B Sa 3, C Sa 3 and D Sa 3
SSPC-SP14	A Sa 2½, B Sa 2½, C Sa 2½ and D Sa 2½
SSPC-SP6	B Sa2, C Sa 2 and D Sa 2
SSPC-SP7	B Sa1, C Sa 1 and D Sa 1

This standard refers to surfaces of hot-rolled steel in four different rust grades (A, B, C and D) the same surfaces prepared to two grades of surface quality (St 2 and St 3) by manual scraping and wire-brushing – machine brushing – grinding-etc.

The same surfaces prepared to four grades of surface quality (Sa 1, Sa 2, Sa 2½ and Sa 3) by blasting with various abrasives. Examples: A steel originally corresponding to rust grade B, which has been scraped or brushed to preparation grade 2 is designated B St 2.

A steel surface originally corresponding to rust grade B, which has been prepared by blast cleaning to preparation grade 2½ is designated B SA 2½.

The standardized rust and preparation grades are defined by colour prints representing full scale view of a part of a surface.

Rust grades:

Steel surface covered completely with adherent mill scale and with little if any rust.

Steel surface which has begun to rust and from which the mill scale has begun to flake.

Steel surface on which the mill scale has rusted away or from which it can be scraped, but with little pitting visible to the naked eye.

Steel surface on which the mill scale has rusted away and on which considerable pitting is visible to the naked eye.

Extended warranty for work and all products

Preparation grades: Scraping and wire-brushing

It is assumed that prior to treatment the steel surface has been cleaned of dirt and grease, and that the heavier layers of rust have been removed by chipping.

St 2 Thorough scraping and wire-brushing – machine brushing, grinding etc. The treatment shall remove loose mill scale, rust and foreign matter. Finally, the surface is cleaned with a vacuum cleaner, clean dry compressed air or a clean brush. It should the have a faint metallic sheen. The appearance shall correspond to the prints designated St 2.

St 3 Very thorough scraping and wire-brushing – machine bruising – grinding – etc. Surface preparation as for St 2, but much more thoroughly. After removal of dust, the surface shall have a pronounced metallic sheen and correspond to the prints designated St 3.

Preparation grades: Blast cleaning

It is assumed that prior to treatment the steel surface has been cleaned of dirt and grease, and that the heavier layers of rust have been removed by chipping.

SA 1 Light blast cleaning. Loose mill scale, rust and foreign matter shell be removed. The appearance shall correspond to the prints designated Sa 1.

SA 2 Thorough blast cleaning. Almost all mill scale, rust and foreign matter shall be removed. Finally, the surface is cleaned with a vacuum cleaner, clean dry compressed air or a clean brush. It shall be greyish in colour and correspond in appearance to the prints designated Sa 2.

SA 2½ Very thorough blast cleaning. Mill scale, rust and foreign matter shall be removed to the extent that the only traces remaining are slight stains in the forms of spots or stripes. Finally, the surface is cleaned with a vacuum cleaner, clean dry compressed air or a clean brush. It shall the correspond in appearance to the prints designated Sa 2½.

SA 3 Blast cleaning to pure metal. Mill scale, rust and foreign matter shall be removed completely. Finally, the surface is cleaned with a vacuum cleaner, clean dry compressed air or a clean brush. It shall then have a uniform metallic colour and correspond in appearance to the prints designated in Sa 3.