AEROFLEX® elastomeric Sheet and Roll insulation is a closed-cell, flexible insulation designed to insulate large-diameter pipes, pumps, tanks, vessels, spheres, and other mechanical equipment where pre-formed pipe insulation is not practical. Made from a proprietary blend of EPDM rubber, AEROFLEX Sheet and Roll insulation conforms to irregular surfaces, helps control condensation, reduces energy loss, and supports long-term mechanical system performance. AEROFLEX Sheet and Roll is available in a wide range of thicknesses and corresponding R-values, including options with pressure-sensitive adhesive (PSA) backing.
AEROFLEX EPDM™ Sheet & Roll Insulation
AEROFLEX EPDM™
Sheet & Roll
Available with or without factory-applied pressure-sensitive adhesive (PSA).
Insulate large piping, pipe fittings, equipment, tanks, vessels, and other mechanical equipment surfaces that require fabrication for a custom fit.

AEROFLEX®-EP
Sheet & Roll
AEROFLEX EPDM Sheet & Roll insulation for projects that require FM Approval.
Sheet & roll for insulating ducts, large piping, and equipment.
Also available in Self-Seal and Standard Unslit tubes..
Common Applications for Elastomeric Sheet Insulation
heet insulation is an important component of many industrial and commercial applications. AEROFLEX EPDM Sheet and Roll insulation is a popular choice due to its variety of formulations, superior performance, and reliability. AEROFLEX closed cell elastomeric insulation is available in sheet (4’x3’) and roll (4’ width) formats, which offer versatility with insulating large and irregular surfaces. Sheet insulation is used in a wide range of industries, including HVAC, refrigeration, chilled water, and industrial processing systems. It is a cost-effective way to improve energy efficiency and reduce energy costs. By reducing heat transfer and preventing thermal loss, sheet insulation can help maintain optimal operating conditions and prolong the lifespan of equipment.
Common applications include the following:
- Equipment, Tanks, and Vessels – Designed for insulating large or unusually shaped equipment like chillers, tanks, vessels, and spheres where full surface coverage and flexibility are required.
- Large Diameter Pipe Insulation – Used when pipe sizes exceed standard insulation diameters, particularly in industrial systems and data centers.
- Mechanical Systems and Irregular Surfaces – Ideal for insulating pumps, strainers, flanges, valves, and couplings that require a custom fit.
AEROFLEX EPDM Sheet and Roll insulation is sometimes used as a solution for equipment duct wrap. However, Aeroflex USA offers dedicated duct insulation solutionsdesigned specifically for that application. Our AEROFLEX Breathe-EZ® HVAC Duct Liner and Wrap offers a fiber-free duct insulation solution that meets the International Mechanical Code for duct linings and coverings contained within plenums. You can learn more about our Breathe-EZ line here.
Solving Insulation Challenges
Elastomeric sheet insulation is designed to address challenges that rigid or pre-formed insulation cannot, including:
- Irregular or complex surfaces
- Insulating equipment and vessels
- Large or oversized piping systems
- Condensation control on flat or exposed surfaces
- Custom fabrication requirements
How to Choose the Right Sheet Insulation
Selecting the right insulation starts with application and system requirements. Elastomeric rubber sheet and roll insulation is typically used for equipment, tanks, vessels, large diameter piping, and irregular surfaces where pre-formed insulation is not a practical solution. Sheet and roll insulation can then be customized to meet the needs of your specific operating conditions and required thermal performance.
Key selection factors that should be considered when selecting your sheet and roll insulation include:
- Application Type: tank, vessel, sphere, large pipe, or other mechanical equipment
- Operating temperature: below-ambient or elevated-temperature conditions
- Thickness Requirements: based on condensation control, energy performance, project requirements, and code compliance (see bullet below)
- Environmental Conditions: indoor versus outdoor applications, including UV exposure where relevant
- Installation Method: standard sheet versus pressure-sensitive adhesive (PSA) backing
- Code and Spec Requirements: ASHRAE, IECC, project standards, and mechanical system specifications
Because insulation performance depends on both material selection and system design, technical data sheets should be reviewed before final product selection. You can download the AEROFLEX EPDM Sheet and Roll technical data sheets above to compare product options and performance characteristics.
Advantages of EPDM Rubber
AEROFLEX sheet insulation is manufactured using a proprietary EPDM rubber formulation. EPDM insulation is widely used in demanding environments, providing:
- Nonpolar (hydrophobic)
- UV resistance for outdoor applications
- Low thermal conductivity
- Mold and microbial resistance
- Recyclable and eco-friendly material
- Ultra-low PVC content — less than 1%
- GREENGUARD Gold Certification for low chemical emissions
- Environmental Product Declaration (EPD)
- Health Product Declaration (HPD)
Installation and Maintenance
Proper installation and maintenance of sheet insulation are critical to ensuring its long-term performance and reliability. Before installing sheet insulation, the surface must be cleaned and prepared to ensure optimal adhesion. AEROFLEX Sheet and Roll insulation comes with a pressure-sensitive adhesive (PSA) backing, making it easy to install and ensuring a secure bond. Regular maintenance of sheet insulation involves cleaning and inspecting for any signs of wear or damage. It is important to keep the insulation dry and prevent any moisture accumulation, as this can reduce its effectiveness. Damaged or worn insulation should be replaced promptly to ensure optimal performance. To learn more, view the AEROFLEX Installation Guide.
Frequently Asked Questions
What is elastomeric sheet and roll insulation used for?
It is used to insulate equipment, tanks, ducts, and large pipes where flexible, cut-to-fit insulation is required.
When should I use sheet insulation instead of pipe insulation?
When surfaces are irregular, oversized, or require continuous wrap rather than pre-formed insulation.
Is elastomeric sheet and roll insulation waterproof?
It is not fully waterproof but has a closed-cell structure that resists moisture absorption and vapor transmission.









