Epoxy type products have traditionally been used for coating bunded areas due to their high adhesion to concrete and chemical resistance. However, epoxies have a major disadvantage when used as a bunded area or secondary containment liners — they have no elongation and are expected to crack over time due to daily expansion and contraction of large sections of substrate. Other types of membranes such as acrylics and bituminous membranes have also been used as bund walls, but they lack flexibility and over time become brittle and crack.
Tufflon is a new generation of polyurea bund wall coating material with all the benefits of epoxies — high adhesion to the substrate and excellent resistance to chemicals and hydrocarbons — but with the extra advantage of being highly and permanently elastomeric. With elongation greater than 400% and excellent puncture resistance, the membrane moves with cyclical changes in the concrete substrate and won’t crack or peel.
The Environmental Protection Agency (EPA) suggests that all chemical containment areas (or bunds) must be large enough to hold at least 110% of the contents of a tank. Any contained liquid other than rainwater should have a bunded area to prevent contamination into the environment. These applications are found in mining, civil, construction and commercial industries and require highly elastomeric secondary containment liners, like Tufflon® and Elaston® products. Features of LiquiMix bund wall, chemical storage facility and secondary containment system products include:
Chemical bunding is a critical aspect of handling hazardous materials in various industries. Liquimix specialises in providing top-tier bunding for chemicals, ensuring a safe and secure environment. Our solutions are designed to prevent contamination of liquids into the surrounding environment, making them ideal for secondary containment needs. Specifically for chemical storage bunds, Liquimix offers robust solutions that effectively contain hazardous chemicals, safeguarding against spills and leaks. These bunds are essential for protecting both the immediate environment and complying with safety regulations, making them a crucial component in managing and storing chemicals safely.
Tufflon-P90FR, a new-generation fire-retardant polyurea material, excels in the field of chemical bund liners and is particularly effective as a fuel bund liner, offering superior protection and durability. While traditional epoxy products have high adhesion to concrete and chemical resistance, they lack flexibility.
Chemical bunding extends beyond mere containment. It is essential in areas such as sewerage and wastewater treatment plants, fuel storage, and mining chemical containment areas. Our bunding solutions are also ideal for chlorine or cleaning agent bunds and caustic bunds, providing robust protection against harsh chemicals.
Liquimix is at the forefront of developing advanced polyurea products. Our chemical bunding solutions, including the Tufflon-P90 and Elaston series, exemplify our commitment to innovation and quality. We offer tailored solutions to meet the specific needs of various industries.
In addition to chemical bunding, Liquimix offers a range of related products and services. These include water tank liners and trafficable waterproof membranes, both of which are integral to maintaining safe and functional industrial environments. Our comprehensive range of solutions is designed to offer reliability and performance, ensuring that your operations are secure and compliant with regulatory standards.
Liquimix’s chemical bunding solutions, highlighted by our Tufflon-P90 and Elaston products, provide robust and reliable containment for hazardous chemicals. Our solutions are designed to meet stringent regulatory standards, offering flexibility, durability, and ease of application. Choose Liquimix for comprehensive chemical bunding and secondary containment solutions, ensuring safety and environmental protection in your operations.
An excerpt from the Gladstone City Council in Queensland gives the following suggestions regarding bunding requirements:
“A bund is an embankment or wall of brick, stone, concrete or other impervious material, which may form part or the entire perimeter of a compound and provides a barrier to retain liquid. Since the bund is the main part of a spill containment system, the whole system (or bunded area) is colloquially referred to within the industry as the ‘bund’. The bund is designed to contain spillages and leak from liquids used, stored or processed above ground, and to facilitate clean up operations. As well as being used to prevent pollution of the receiving environment, bunds are also used for fire protection, product recovery and process isolation.”
Source – http://www.gladstone.qld.gov.au/
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