Heat-Flex® AEB

Revolutionary industrial insulation – eliminates CUI, improves long-term performance

Heat-Flex® AEB (Advanced Energy Barrier) is a thermal insulative coating designed to eliminate Corrosion Under Insulation (CUI) and provide long-term performance that rivals mineral-based insulation systems. Designed to replace traditional insulation systems on storage tanks, process vessels and piping, Heat-Flex AEB offers superior long-term insulative performance compared to mineral-based materials which become wet over time, reducing thermal performance and causing CUI.

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Easy installation - Open. Mix. Apply.

As a one-component coating, Heat-Flex AEB is fast, simple and easy to install – simply open, mix and apply using commercially available spray equipment. Its easy application process reduces labour costs and enhances safety by minimising worker proximity to hot surfaces. By eliminating the need for traditional insulation materials, Heat-Flex AEB significantly reduces the environmental impact and extends the lifespan of steel assets, making it a superior choice for industrial insulation needs.

An award winning, industry leading coating.

Heat-Flex AEB is a major advancement in the fight against CUI and our commitment to delivering better insulation materials for the Oil and Gas market. It has been recoginised by the wider protective coatings and Energy industry for uniquely offering easy one-component application properties and ultra-low thermal conductivity in a complete CUI elimination package.

See how the industry responded to our Advanced Energy Barrier:

SHORTLISTED - 2026 Tank Storage Awards
WINNER - 2025 Gulf Energy Information Excellence Award
WINNER - 2025 Vaaler Award

Key Benefits

Find some of the key benefits of Heat-Flex AEB below. Download our information sheet for further information.

Eliminates CUI

Directly applied to primed steel assets, removing the need for traditional insulation systems.
Removes the corrosion zone between traditional insulation and the substrate, a primary cause of CUI.
Compatible with the entire Heat-Flex CUI Mitigation Primer portfolio.

Less Resource Intensive

Reduces the environmental footprint by reducing CO2 and NOx (modeled by insulative software).
Eliminating the manufacturing, shipping and dry storage of traditional insulation materials.
Minimises the need for steel replacement and associated environmental costs due to elimination of CUI.

Superior Thermal Retention

Process heat retention is comparable to traditional in-service insulation systems.
Maintains consistent thermal efficiency, unlike traditional insulation systems, even in extreme environments up to 177°C, with excursions to 204°C.

Ease of Application and Maintenance

Can be applied using commercially available spraying equipment, reducing installation time and labour costs.
One component: Open, mix and apply. Heat-Flex AEB is also easy to repair using trowelled material.
Allows for hot application, enabling continuous operations during maintenance up to 148°C.

Enhanced Safety

Reduces burn risk for employees working in close proximity to hot assets.
Simplifies maintenance time with on-site pre-assembly applications, reducing the need for extended permitting.

Video: Discover Heat-Flex® AEB

Duration - 2:18

<begin subtitles> 00:00:05:16 00:00:08:07 Introducing Heat-Flex AEB, 00:00:08:08 00:00:09:24 the revolutionary advanced energy 00:00:09:25 00:00:11:10 barrier from Sherwin-Williams 00:00:11:11 00:00:12:10 Protective and Marine. 00:00:15:08 00:00:16:20 An innovative solution that 00:00:16:21 00:00:19:03 redefines industrial insulation. 00:00:19:04 00:00:21:06 Heat-Flex AEB effectively 00:00:21:07 00:00:22:09 eliminates corrosion under 00:00:22:10 00:00:24:08 insulation, a costly and dangerous 00:00:24:09 00:00:26:07 issue, by replacing bulky 00:00:26:08 00:00:28:06 traditional insulation systems. 00:00:28:07 00:00:30:04 Applied directly to prime steel, 00:00:30:05 00:00:32:07 Heat-Flex AEB forms a thick 00:00:32:08 00:00:34:00 insulative barrier that maintains 00:00:34:01 00:00:36:24 operating temperatures up to 350°F, 00:00:36:25 00:00:39:16 with excursions to 400°F. 00:00:39:17 00:00:41:19 Heat-Flex AEB is a game breaking 00:00:41:20 00:00:43:24 thermal insulative coating offering 00:00:44:00 00:00:46:02 process heat retention that rivals 00:00:46:03 00:00:47:10 the performance of traditional 00:00:47:11 00:00:48:24 in-service mineral wool insulation 00:00:49:00 00:00:51:02 systems while ensuring consistent 00:00:51:03 00:00:53:01 thermal efficiency even in extreme 00:00:53:02 00:00:54:01 environments. 00:00:56:03 00:00:57:24 Heat-Flex AEB is more than just a 00:00:58:00 00:00:59:10 thermal insulative coating. 00:00:59:11 00:01:01:05 It's a sustainable solution that 00:01:01:06 00:01:02:03 eliminates the need for 00:01:02:04 00:01:03:24 manufacturing, shipping and 00:01:04:00 00:01:05:04 storing traditional insulation 00:01:05:05 00:01:07:02 materials, significantly reducing 00:01:07:03 00:01:08:03 environmental impact. 00:01:09:09 00:01:11:02 With this one component coating, 00:01:11:03 00:01:13:03 application is easier, faster 00:01:13:04 00:01:13:23 and safer. 00:01:13:24 00:01:15:12 Workers can apply the coating from a 00:01:15:13 00:01:17:17 distance, reducing burn risks, 00:01:17:18 00:01:19:08 all while maintaining continuous 00:01:19:09 00:01:20:08 operations. 00:01:21:12 00:01:23:11 Heat-Flex AEB can be applied 00:01:23:12 00:01:26:08 to hot surfaces up to 300°F, 00:01:26:09 00:01:28:02 saving time by allowing assets to 00:01:28:03 00:01:30:17 stay operational during application. 00:01:30:18 00:01:32:02 From storage tanks and process 00:01:32:03 00:01:34:07 piping to offshore facilities 00:01:34:08 00:01:35:15 and petrochemical plants. 00:01:35:16 00:01:37:18 Heat-Flex AEB is versatile 00:01:37:19 00:01:39:05 and effective across multiple 00:01:39:06 00:01:41:06 industries. Experience significant 00:01:41:07 00:01:42:16 energy savings and enhanced 00:01:42:17 00:01:45:02 efficiency with Heat-Flex AEB, 00:01:45:03 00:01:46:16 which helps maintain optimal 00:01:46:17 00:01:48:08 operating temperatures, keeping hot 00:01:48:09 00:01:50:12 assets hot and cold assets cold, 00:01:50:13 00:01:52:14 optimizing energy use and reducing 00:01:52:15 00:01:53:16 emissions. 00:01:53:17 00:01:55:13 Revolutionize your insulation with 00:01:55:14 00:01:57:15 Heat-Flex AEB. 00:01:57:16 00:01:59:03 Say goodbye to traditional 00:01:59:04 00:02:01:07 mineral-based insulation and hello 00:02:01:08 00:02:02:10 to a more efficient future. 00:02:06:21 00:02:09:05 Discover more at Sherwin-Williams 00:02:09:06 00:02:10:05 Protective and Marine. <end subtitles>