EPOXY COATED STEEL TANKS

efusion^® is the brand name for Balmoral Tanks’ in-house steel panel epoxy coating. This fusion bonded epoxy treatment provides a highly resistant coating to the tank panels.

The benefits of epoxy coated steel tanks against more traditional tank coatings include higher durability to impact, lower cost manufacturing, lower carbon footprint and more efficient design principles.

efusion is tested to similar stringent standards as glass coated steel and meets, exceeds or provides comparable performance against the following internationally recognised coating requirements:

• ISO 28765:2016
• AWWA D103-19
• NSF^®-61

* Subject to grade

efusion1500 tanks

Balmoral efusion1500 epoxy coated steel tanks are used in the most demanding and aggressive applications and are suitable for specialised coated steel tank applications such as anaerobic digester tank gas spaces. efusion1500 is also very well suited to operating in high temperature environments.

Tested to 1500V, the efusion1500 coating delivers the highest level of durability and performance available in the storage tank market.

Stainless steel tanks

In addition to fusion bonded epoxy coated steel tanks, Balmoral offers a full range of stainless steel tanks, roofs and ancillaries for use in the water, wastewater and anaerobic digestion industries.

These tanks are available as a complete tank kit in grade 304 and 316 stainless steel, in a combination of grades or as a hybrid tank with fusion bonded epoxy coated steel in the lower rings and stainless steel in the upper rings.

Slurry tanks

Balmoral’s epoxy coated steel storage tanks deliver cost effective performance to the agricultural and slurry storage market. Manufactured and coated at the company’s dedicated powder coating facility Balmoral’s proprietary epoxy coating system delivers a highly durable tank offering many years of virtually maintenance-free service.

Hybrid tanks

As Balmoral offers a range of different tank materials it allows the company to design and engineer tanks with multiple grades of material for different areas of the tank.

By offering a combination of fusion bonded epoxy coated steel grades, efusion and efusion1500, or a combination of materials, efusion and stainless steel, this allows the most cost effective combination of materials to meet storage requirements based on the process design.

Depending on the effluent’s chemical composition, stored temperature and operating conditions, some tank systems will be more aggressive in the liquid to gas/air interface and having a hybrid option deals with this in the most technically robust and budget-conscious way.

With value engineering at the heart of material selection, Balmoral Tanks’ efusion coating meets all necessary design life expectations. Key factors in achieving optimum product performance begin with the design and manufacturing process, running right through to installation. Retaining in-house control and quality in each of those critical areas is vital in ensuring consistent high levels of performance of any coated steel tank.

Balmoral’s efusion system, and its inherent performance properties, ensures the end user receives the best design life expectancy available. The company’s quality assurance standards and installation experience delivers a robust product that is more than capable of design life performance.

Internal coating: Thermoset resin fusion bonded epoxy

Application	Test	Result	Colour
Dry film thickness	Industry standard device (efusion) Elcometer 456 (efusion 1500)	150µm–250µm/6-10mils (efusion) 300µm–650µm/13-26mils (efusion 1500)
PH range	Subject to contents and temperature	PH 2-11 (efusion) PH 2-13 (efusion 1500)
Corrosion resistance (Salt spray test)	ISO 9227	Pass - 0mm creep from scribe at 1440hrs
Hot water immersion 90 days, 75ºC	EN ISO 21809-2	Pass rating 1
Humidity	EN ISO 6270-2	Pass – 1000 Hrs
Adhesion	EN ISO 21809-2	Pass - 0mm
Hardness	EN ISO 2815 - Bucholtz Hardness Test	Pass - Indentation resistance = 91
Impact resistance	EN ISO 6272-2	Pass >15J
Abrasion resistance	Abrasion wheel ASTM 4060	CS17, 1000g, 1000 cycles < 27mg
Chemical immersion	50% NaOH, 50% H2SO4	Meets/exceeds industry standard
Holiday test	1100v/1500v every panel	100% defect free at test voltage

External coating: Durable polyester

Application	Test	Result	Colour
Dry film thickness	Industry standard device (efusion) Elcometer (efusion 1500)	150µm – 230µm (6-9mils)
Corrosion resistance (Salt Spray Test)	EN ISO 9227	16mm creep from scribe at 1000 Hrs
Humidity	EN ISO 6270-2	Pass - 1000Hrs
Adhesion	EN ISO 21809-2	Pass - 0mm
Hardness	EN ISO 2815 - Buchholtz Hardness Test	Pass - Indentation Resistance = 80
Impact resistance	EN ISO 6270-2	2.5Nm/22 inch-pound (no sign of detachment)
Weathering	EN ISO 16474-2	Pass -1000Hrs, residual gloss ≥50%, Colour change ∆E according to Qualicoat requirements (appendix A7)
Weathering	EN ISO 16474-3	Pass - 300Hrs, Residual gloss ≥ 50%

Any coating damage must be repaired in accordance with the operation and maintenance manual to maintain an effective barrier to the environment

Balmoral operates via a network of distributors worldwide that are trained in all areas of tank construction. Experienced Balmoral service engineers are available if additional support is required.

There are two main methods of building modular tanks:

Scaffolding

Scaffold building suits open top tanks and tanks in areas of the world where the importation of jacks is difficult or restricted by customs laws.

Jacking

Jack building suits tanks with covers, tall tanks, and project sites where working at height is restricted or perilous. The jacks are normally shipped with the tank kit and allow for the majority of works to be completed within 2.4m of ground level.

Foundations