Thermal Sleeves
Thermal Protection for Hoses, Cables & Other Critical Components
Clevaflex Thermal Sleeves are convoluted, multi-ply sleeves of woven fiberglass, aluminum or stainless steel, mechanically overlapped, and then bonded with a thermosetting adhesive.
Clevaflex Thermal Sleeves provide excellent protection from internal and external sources of radiant and reflected heat. They protect a variety of critical components, including hoses, cables, liquid lines and wire assemblies, from surface temperatures up to 650 degrees Celsius, and are resistant to fluids and mechanical abrasion.
Our proprietary manufacturing process produces strong and lightweight convoluted sleeves that can be precisely bent and routed without degradation or frayed ends. Thermal Sleeves have a highly engineered appearance and allow for custom ends (slits, slots or notches) to increase thermal protection and simplify installation.
In addition, Thermal Sleeves are available in the super style, whereby the wall height is increased to improve flexibility and thermal performance. They are available in diameter sizes between 12 mm to 405 mm.
Typical Applications:
- Power steering hoses
- Air conditioning hoses
- Heater / Radiator hoses
- TOC and Fuel lines
- Wire assemblies
- Brake lines and hoses
Features:
- Superior thermal protection
- Aesthetically appealing
- Multiple color options
- Fray resistant
- Crush resistant
- High strength-to-weight ratio
- Fluid resistant
- Abrasion protection
- Easy to install and route
- Custom end finishing (slit, slot or notch)
| Sleeve Types | Materials (Inside to Outside) | Wall Construction |
|---|---|---|
| A-A | Aluminum - Aluminum | Regular/Super |
| F-A | White Fiberglass - Aluminum | Regular/Super |
| F-AFS | White Fiberglass - Aluminum Foil Scrim | Regular/Super |
| F-M-A | White Fiberglass - Mylar - Aluminum | Regular/Super |
| F-SS | White Fiberglass - Stainless Steel | Regular |
Clevaflex Thermal Sleeves can be designed with a variety of materials to meet specific applications.
Performance Data| Test | Property | Results |
|---|---|---|
| Heat Aging | 10 hours at 350°C | No Delamination |
| Long Term Durability | 500 hours at 232°C | No Delamination |
| Thermal Endurance | 6 hours 12 mm away from 550°C heat source | No Delamination |
Clevaflex Performance Data is based on tests performed on F-A and A-A Sleeves

For material specifications, product drawings or other information, please contact our sales and engineering offices at 216.941.6505.
The foregoing specifications and illustrations are for informational purposes only. Nothing contained therein is intended to, nor shall it be construed as, a representation, warranty or guaranty of any type, including the fitness of the product for any purpose. Users are encouraged to make their own evaluations and to conduct their own testing to determine the suitability of any of our products for a specific application.
