Articles on Residential, Commercial and Industrial Coatings

Articles on Residential, Commercial and Industrial Coatings

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Rhino sprayed on polyurethane protection for Hi-Rail Truck

Hi-Rail Isuzu Truck

Hi-Rail Trucks – Rail Maintenance Vehicles

Built for FMG Mining, this Isuzu truck is fitted with a Hi-Rail system which means it has Train Wheels and drive system on the front and rear and therefore can travel on the clients rail line.  The truck can drive on regular roads using its rubber wheels.  When it gets to a rail line, it straddles the rail line, and the HiRail units fold down lifting the truck off its rubber wheels.

The role of this vehicle is to carry equipment along the rail line and perform track maintenance.

Now the question is why did they go to all the trouble of coating the entire underbody, chassis, diffs, Hi-Rail unit,  diesel and air tanks? 

Well, the answer is simple – Most of the roads this truck travels on to, and from, the rail line are mainly gravel which is sprayed with water 24hrs a day for dust suppression.  It is a waste to use good clean drinking water so they often use second grade reclaimed water from dams or the ocean and it is very salty.

Salt Water + Dirt + chipped paint = RUST !

… and very quickly it will rust – this truck is worth about $500,000 so they would like it to last up to 10 years.

So from both a cost saving and ease of application perspective we use a combination of High Build Industrial Epoxy and Rhino Linings polyurethane coating system.

First, everything is sprayed with a 300µm DFT coating of our High Build black Epoxy (known as Beamastic). This product also provides an excellent primer or base for the Rhino product.

Then we simply spray Rhino Duraspray on anything we think will cop the flying debris.  This is typically the chassis rails near the rear wheels, the fuel and auxiliary tanks that stick out the side, both diffs, and in this case, the Hi-Rail units mainly because they are very expensive and the client wanted the added insurance of the double coating (Epoxy and Rhino)

Work completed by Beam Rustproofing located in Belmont WA.
For further information contact Beam on (08) 9325 1399

Restoration of Hangar Floors with Rhino ArmaFloor 500

Rhino ArmaFloor 500 DF

 

 

When concrete floors age they become discoloured, stained, cracked, chipped, and weakened.

These were the same problems Qantas Defence Services needed to be addressed when it came time to upgrade the 60-year-old concrete floor of the RAAF Base Richmond hangar.

Due to budgetary constraints replacement of the floor was out of the question, restoration was the only way forward.

Tenderers were required to address certain criteria to win the project. In addition to the more mechanical properties of a suitable floor coating such as strength, durability and chemical resistance, the product had to be easy to clean, exhibit a high gloss finish and be aesthetically pleasing.

A variety of concrete floor coatings were considered for this particular project, however, Rhino ArmaFloor 500 was selected for its strength and durability and the products other features and benefits.

Qantas-hanger

THE PROCESS
All cracks and damaged concrete were repaired prior to being primed with ArmaFloor® 300 ECO. This product was specifically chosen for its ability to bond exceptionally well to existing concrete substrates.

Rhino Linings ArmaFloor 500, a strong durable polyaspartic floor coating used in residential, commercial and industrial applications, was fit for purpose.

This product offers a fast 24-hour return to service, exhibits excellent UV resistance and provided that high gloss finish required by management.

The product was especially suitable for this project due to ArmaFloor 500 excellent chemical resistance against fluids such as skydrol, motor oils, and other hazardous transmission fluids.

 

THE RESULT
Combined, these two products met the required specifications of Qantas Defence Services, including the ease of cleaning, strength, durability, chemical resistance and provision of that aesthetically pleasing and professional look to the hangar floor.

Suffice to say, management was extremely satisfied with the end result.

Watch the video and let us know what you think.

For more information call now

and speak to your Rhino Linings State Sales Manager, Ph: +61 7 5585 7000

Advantages of Polyurethane and Pure Polyurea Coatings in Corrosive Environments

Secondary Containment - Rhino Linings

In 2013, Peter Morgan from Rhino Linings Australasia Head Office gave a highly successful presentation on the advantages of polyurethane and pure polyurea to fellow and leading industry members of the Australian Corrosion Association.

POLYURETHANE ELASTOMERIC COATINGS FOR MAJOR INFRASTRUCTURE

Peter explained what polyurethane is, the advantages of using it, including how to select the right product for the required application, whether that be for drinking water tank linings, industrial tank liners, thickener tanks, channel linings, ponds, dams or secondary containment applications.

Wastewater treatment plant channels - Rhino Linings polyurethane

He also went through case studies of typical applications for both elastomeric polyurethane and pure polyurea coatings.

Peter’s presentation was well received resulting in the creation of valuable networking opportunities and stronger brand awareness for future business relationships.

We thought we would share his presentation with you in an effort to provide a greater understanding of Rhino Linings approved applicator capabilities and our premium protective coating systems.

For more information on Rhino Linings products and capabilities, or if you are looking for your nearest Rhino approved applicator, contact head office by emailing info@rhinolinings.com.au or phone +61 7 5585 7000 to speak with your Rhino Linings State Sales Manager.

We look forward to answering any questions you may have.

Spray Applied Protective Coatings for WWTP Inlet Tunnel

Polyurea and Polyurethane protective coatings for raw sewage inlet

The use of Spray Applied Protective Coatings for WWTP Facilities is Increasing.

Read More

The Importance of Water and Wastewater Coatings Performance Testing

Water and wastewater coatings

Water and Wastewater  Coatings & Polyurethane / Pure Polyurea Performance Testing

Whatever the linings system used in water and wastewater coatings applications, all have to withstand aggressive chemical substances, abrasion, corrosion, and in addition, provide a good level of impermeability.  That being said, the success and longevity of any coating system utilised in this area ultimately depends on the stress levels it can tolerate.

To determine the performance of a polyurethane / pure polyurea coating system within the water and wastewater industry, there are a number of tests that can be carried out by testing and analytical services.  For example the Australian Water Quality Centre test products that come in contact with drinking water, this standard is known as AS/NZS 4020.  (Note: Ensure you use the very latest version when considering Potable Water Approval.)

potable water certified coatings

However, it is important to remember that conditions in a laboratory are not the same as those in the field especially where protection from chemical substances are required.   Normally when testing for chemical resistance a sample of the coating is immersed into the chemical being tested.  There are times when this is not possible, that is why it is recommended that prior to the full application of any coating material that a test be carried out under real conditions, this will help determine the performance of the coating system especially when it comes to abrasion and chemical resistance. This is where Standard AS3894 Site Testing of Protective Coatings is implemented.

When it comes to protective coatings such as epoxies, polyurethanes and pure polyureas,  water and wastewater coatings performance tests can include, but are not limited to:

 

  • Abrasion Resistance – ASTM D4060
    • Taber Abrasion Test is where a sample of the product is rotated under a specific weight (1kg) against a grinding wheel (CS17 or CS18) for a defined number of revolutions (1000 cycles).  The sample is evaluated by measuring the weight of the sample before and after the test, the more abrasion resistant the coating is the lower the reported weight loss.
  • Adhesion – AS3894 Site Testing of Protective Coatings
    • The Adhesion of a protective coating system to the substrate is deemed a good indicator of the coatings ability to resist corrosion signifying longevity of the coating.  The better the adhesion the longer the coating lasts, it should also be noted that durability of the lining can also be governed by the thickness of coating.
  • Cathodic Disbondment – ASTM G95
    • Cathodic disbondment is one measure of the undercutting resistance of a coating/lining system.  Linings with better cathodic disbondment resistance have better corrosion resistance and greater longevity.
  • Chemical Resistance
    • Chemical resistance tests are carried out specific to the application required.  A swatch of the coating is submersed into a sample of chemical, if this cannot be done tests are devised which simulate as close as possible the actual conditions.
  • Flexibility – ASTM D522
    • Flexibility is a good indicator of a coating/lining’s ability to withstand the cracking, disbanding, or other mechanical damage of the coating/lining that can occur.
  • Impact Resistance – ASTM G14
    • Impact resistance test method represents the coatings ability to withstand damage to a direct impact with another object, this methods help predict the lining performance and resistance to damage
  • Water Absorption – ASTM D570
    • Polyurethanes are susceptible to water absorption during its life of water and temperature exposure, this can lead to degradation, and failure of the lining, however there are certain levels that are within the acceptable range.

Some of the above U.S. based tests are included in the AS/NZ 4858 “Wet Area Membranes” which gives further indication of a coatings performance.

 

Factors that Affect a Coatings Performance

The performance of any coating/lining system depends on many variables, such as surface preparation, film thickness, temperature, cathodic protection, flexibility, impact resistance and so on, other factor that need to be taken into account that can affect the performance of a coating include:

  • The design
  • Surface preparation
  • Surface profile
  • Coating type
  • Coating thickness
  • Weather conditions

When selecting a coating system, it is imperative that you consider these performance measures in order to make the best choice.   When it comes to corrosion resistance in water and wastewater coatings applications it is important to be preemptive, so understand what your objectives are, and know what long-term outcomes you require otherwise your company could end up spending a lot more than liked.

Water and Wastewater Infrastructure

Clarifyer - water and wastewater treatment plant

Innovative spray applied seamless coatings for the water and wastewater industry.

Rhino Linings® continues to be a market leader in providing innovative protective coating solutions especially when it comes to infrastructure.  For the last couple of years Rhino has been paying particular attention to the water and wastewater industry and successfully providing innovative solutions for clients within this sector.

Rhino Linings® prides itself on its ability to offer long-term, cost effective protective spray applied polyurethane and pure polyurea solutions.  Our portfolio has been developing considerably by offering customised solutions for stakeholders of  large industrial, mining, water and wastewater projects.

The industry is starting to move away from epoxy solutions as this system is not able to provide the flexibility and extended lifespan that polyureas and polyurethanes provide.  Another advantage of using Rhino spray applied products are:

  • Rapid curing
  • Good elongation properties
  • Excellent corrosion and chemical resistance
  • Seamless
  • Impermeable membrane

Sewer Pump Pits

With out proper protection concrete sewer pump pits can erode and degrade rather quickly due to gas attack above the high water mark. Rhino Linings® provides a total “solution” encompassing short term and long-term goals of the project for restoration and long term protection.

Waste Water Treatment Plants

Rhino Linings® chemical resistant Polyurethane and Pure Polyurea provides excellent resistance to acidic attack, with its high bond strength to concrete and abrasion resistant flexible properties it is the perfect solution for use in continuously submerged corrosive environments.

Water Channel and Leachate Pond Linings

Rhino Linings® polyurethane spray systems are perfect for lining failed water channels. Lightweight and durable application equipment mean that remote locations and difficult terrain proved no problem for our product technicians. With just one application of our remarkable elastomer and the utilisation of geotextile, the integrity of any channel will be restored effectively preventing further loss of valuable water and increase the transfer flow rate considerably. Rhino Linings® also offers a spray applied membrane for storage ponds.

 Internal Pipe Spray System

Rhino’s innovation extends to the design of the RhinoPro Internal Pipe Spray System.  This system has been designed specifically for pipes which require special protection for the internal transfer of materials including water, wastewater, sewerage, various chemicals and oil.  Spray applied with Polyurethane or Pure Polyurea, the corrosion and impact resistant seamless surface provides superior chemical resistance on internal pipe surfaces, increases flow efficiency of pipes, and reduces gas attack.

Water and Waste Water Infrastructure Rehabilitation Service Includes:

  • Sewerage pump pits,
  • Manholes,
  • Waste Water Treatment Plants
  • Potable water tanks
  • Leaks
  • Reservoirs
  • Panel Tanks
  • Concrete Tanks
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