Thursday, August 22, 2019
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Advantages of Soda Blasting

A comprehensive guide to the advantages of
Baking Soda Blasting.

 

Cleaning & De-Coating in One Step

Standard abrasive blasting is a dirty process, often loading and even embedding the surface with contaminants (grease, oil, tar & abrasive particles) in the process of removing the coating. Recycled abrasives compound this problem by loading increasing amounts of contaminants into the substrate. Natrium 260 soda blast media effectively de-coats and cleans the substrate in one step; producing a level of cleanliness not seen with most processes. The media is not reusable thus eliminating the issue of blasting with re-used media. Coating adhesion relies heavily on surface cleanliness and a surface profile has been used to offset this lack of cleanliness. 

Unique Cutting Action

Natrium 260 soda blast media offers the unique properties of sodium bicarbonate, the primary ingredient. The softness (Mohs hardness scale of 2.4) and friable nature of this crystal produces a unique cutting action with little or no effect on most substrates. For example, thick coatings can be removed from glass without any etching effect or an ideal way to remove paint from swimming pools or concrete and brick. With proper care, delicate substrates can be cleaned without damage.  

No Pre-Cleaning Required

For projects where the coating is covered with grease, carbon, salt or other contaminates, the more traditional methods require the coating to be fully cleaned before blasting. This is required so that the contaminants on the surface of the coating not be driven through the coating and into the surface of the substrate, causing future coating failure. Soda Blasting eliminates all the time consuming and various methods  of paint and contaminate removal, as all unwanted coatings are safely removed in one easy application. This is of particular advantage in the marine industry when cleaning boat hulls.

No Need to Re-Profile Steel

Natrium 260 soda blast media will not profile steel. When an operator removes a coating from a metal surface, he or she exposes the existing anchor pattern under the coating. Unless corrosion has occurred, there is no need to re-profile the surface. Soda blast media is therefore ideal for use in industrial sectors, when steel and metal surfaces need to be cleaned and stripped.

Reduced Solid Waste

Natrium 260 soda blast media can be dissolved in fresh water. By dissolving the media and filtering out the contaminates, the solution can generally be discharged to POTW treatment systems or open waterways, with proper discharge permits. Waste volume is generally reduced to less than 5% of the original waste volume. With increasing landfill costs and liabilities, this advantage becomes more important every day. 

Natural Rust Inhibitor

As long as the baking soda residue is on a ferrous metal surface, rust will not form. For rust to form, free moisture and an acidic condition must exist. In most cases, free moisture combines with carbon dioxide in the atmosphere to form carbonic acid. This acid releases a free metal (ferrous) ion, which combines with oxygen (oxidizes) to form rust. Baking soda buffers the acids, prevents the release of free metal ions and prevents rust.  

Reduced Clean-Up costs

Natrium 260 soda blast media performs roughly the same level of work (somewhat slower) as sand blasting while producing 1/3 to 1/5 of the total waste volume. Although media costs per square foot are higher, site clean up and residue disposal are significantly lower. The net balance is that total cost per square foot are about the same for both approaches. 

Benefits In Waste Disposal

In most non-hazardous applications, the residue from blasting with Natrium 260 soda blast media can be rinsed into sanitary drains or sewers, which flush the residue to a water treatment facility, greatly reducing the clean up time. Sodium bicarbonate is actually beneficial to waste water treatment systems. For industrial treatment systems, where chemical neutralization is a major cost in water treatment, baking soda blast media can often save significant dollars in waste treatment.

Increased Worker Safety

The safety of sodium bicarbonate to workers is well understood, since it has been in use for some 160 years. The bicarbonate buffer system is the major extracellular buffer for the human body, thus sodium bicarbonate is part of the body’s normal chemistry. Sodium bicarbonate and thus, Natrium 260 soda blast media is not toxic via ingestion, inhalation or dermal contact, nor is it a skin or eye irritant as defined by EPA and OSHA. Any risk to workers is primarily the contaminate or coating removed during the blasting process. 

Removes Odors

The same odor absorbing effect seen in the refrigerator at home is present when blasting with Natrium 260 soda blast media. It not only removes the contaminates, it also reduces the unfriendly odors. 

Replaces Dangerous Solvents

Natrium 260 soda blast media when applied wet is an excellent de-greasing medium that eliminates the use of solvents in most cleaning processes. Natrium 260 soda blast media does not “dissolve” or “emulsify” grease or oils, it simply coats them causing the grease or oil to release from the surface. It also eliminates the translocation of oil and grease. 

Does Not Produce Sparks

Natrium 260 soda blast media will not produce thermal sparks and is suitable for use in explosion proof areas; including refineries, chemical plants and grain elevators as long as proper grounding techniques are used to prevent a static charge build up. 

Reduce Surface Acids

As a strong buffer for acids and alkalis, baking soda eliminates acidic conditions on the surface of the substrate. For conditions with high acid levels, acid rain or boiler fly ash, blasting with Natrium 260 soda blast media will reduce coating failures. 

SSPC – NACE Standards

Natrium 260 soda blast media will attain a level of clean that will meet the standards of both NACE and SSPC.

NACE 1 (SP-5) White Metal Blast Cleaning

NACE 2 (SP-10) Near-White Blast Cleaning

NACE 3 (SP-6) Commercial Blast Cleaning

NACE 4 (SP-7) Brush-Off Blast Cleaning 

Hardness Scale

Natrium 260 soda blast media has a hardness of 2.4 on the Mohs’ scale of Hardness. The softness of this media means that it can be used to remove most coatings without harming the substrate. 

Benefits Of Process

Environmentally Sensible, Non-Hazardous To Workers, Non-Toxic Media, Water Soluble Media, Low Blasting Pressure, Does Not Generate Explosive Dust, No Threat Of Silicosis.      

Please do not hesitate to contact us for more information.

Mobile Service

Mobile Service

Environmentally Sensible, Non-Hazardous To Workers, Non-Toxic Media, Water Soluble Media, Low Blasting Pressure, Does Not Generate Explosive Dust, No Threat Of Silicosis.

TAURANGA SANDBLASTING

Tauranga Sandblasting for Abrasive Blasting & Industrial Painting
We clean metal surfaces & apply protective coatings on

  • Heavy Industrial Machinery & Structural Steel
  • Marine, Transport,& Farm Machinery
  • Surfaces Requiring Rust Protection

Visit Tauranga Sandblasting website

The TAURANGA SODA BLAST Advantage

  • Cleaning & De-Coating in One Step
  • Unique Cutting Action
  • No Pre-Cleaning Required
  • No Need to Re-Profile Steel

For a comprehensive rundown on all the benefits of Soda Blasting check out our Advantages page.

Soda Blasting