For assets exposed to the harsh atmospheric elements, the focus shifts from permanent immersion (internal lining) to External lining mitigating UV degradation, thermal cycling, and atmospheric corrosion. Liquimix recommends a robust, multi-layered system centered on high-performance polyurea and UV-stable polyaspartic technology.
To provide comprehensive corrosion protection and long-term aesthetic appeal for external tank surfaces, we recommend a high-build system incorporating:
Anti-Corrosion Primer: A zinc-rich primer or high-build epoxy (e.g., Civilox or Metalox-GC450) for maximum adhesion and cathodic protection on steel, or a direct-to-metal polyurea like Tufflon-D60 on properly prepared substrates.
Primary Barrier Coat: Tufflon Pure Polyurea (e.g., Tufflon-P90 or P80) for a seamless, thick, and highly durable membrane.
UV-Stable Topcoat: Opalon Polyaspartic (e.g., Opalon-S30 or M45) to provide colour stability and protection from solar degradation.
While Polyurea (Tufflon) provides the ultimate base layer of physical and corrosion resistance, Polyaspartic (Opalon) provides the necessary defense against UV exposure, ensuring the coating maintains its color and integrity for decades.
| Feature | Advantage for Exterior Use |
| Superior Corrosion Barrier | Tufflon Polyurea, applied at high film thickness, provides a seamless, monolithic barrier that instantly stops moisture and oxygen ingress—the root cause of corrosion. |
| UV Resistance & Color Stability | Opalon Polyaspartic is highly UV stable and colour-fast, ensuring long-term aesthetics and preventing the chalking or fading that can affect non-aliphatic coatings over time. |
| High Flexibility & Thermal Stability | The Polyurea layer is permanently elastomeric, easily accommodating the significant thermal expansion and contraction cycles experienced by exposed steel tanks without cracking, peeling, or blistering. |
| Rapid Return to Service | Both Tufflon (cures in seconds) and Opalon (rapid cure) allow for the entire multi-coat system to be applied and returned to service in a matter of days, minimizing operational downtime. |
| Abrasion & Impact Resistance | The combined Polyurea/Polyaspartic system offers extreme resistance to physical damage, maintenance foot traffic, and wind-blown debris. |
Tank refurbishment and lining are essential services that can be completed withLiquimixTufflon Polyurea, focusing on both steel panel / welded tanks and concrete tanks. Tufflon range stands out as the optimal choice for permanent immersion, offering exceptional chemical resistance and durability. This makes it an ideal concrete water tank liner and concrete water tank sealer, as well as a potable water tank liner.
One of the unique advantages of Tufflon as a concrete water tank liner is its low water absorption rate. This property significantly reduces the risk of delamination or osmosis, which can compromise the lining integrity. By choosing Tufflon, you ensure a long-lasting and resilient tank lining solution.
At Liquimix, we don’t just make liners; we design systems that include surface preparation to ensure the highest adhesion and longevity of the membrane. Our unique preparation methods for concrete and steel tanks set the stage for the successful application of Tufflon.
Tufflon’s application isn’t limited to tank lining; it also serves as an effective trafficable waterproof membrane. This feature makes it suitable for areas that require both waterproofing and the ability to withstand foot or vehicle traffic, offering a comprehensive protective solution.
Liquimix’s Tufflon range stands as a top-tier solution for water tank liners, concrete tank liners, and potable water tank liners. Its proven track record, chemical resistance, and low water absorption rate make it the ideal choice for a wide range of applications, including chemical bunding and mining equipment protection. Choose Liquimix for reliable, high-performance tank lining solutions.
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