Thermiculite 715 is a premium asbestos-free sealing sheet designed for reliability across a wide range of industrial applications. Combining chemically exfoliated and thermally exfoliated vermiculite with aramid and synthetic fibres, bound in high-quality nitrile rubber, it delivers strong sealing performance under challenging service conditions.
Complying with BS7531 Grade X specification, Thermiculite 715 offers excellent chemical resistance and is suitable for sealing steam, acids, alkalis, fuels, oils, and most industrial process media. Its balance of strength, flexibility, and chemical stability makes it a versatile choice for both demanding and general sealing requirements.
Performance
Technical Capabilities
- General industrial sealing applications
- Steam systems and pipelines
- Acid and alkali chemical services
- Fuel and oil handling environments
- Applications requiring compliance with BS7531 Grade X
- Maximum Continuous Service Temperature (1.5mm): 450°C (850°F)
- Maximum Recommended Temperature: 540°C (1000°F)
- Maximum Recommended Pressure: 14 MPa (140 bar; 2030 psi)
- Chemical Resistance: Suitable for a full pH range of industrial media
Please see the datasheet for full details.
Important: This material is not intended for use as a facing in Flexitallic Flexpro™ gaskets. Final suitability for any application remains the responsibility of the customer. For technical assistance, please contact our team.
Other Types of Thermiculite
With such a wide range of stocked materials, see below for an overview of each material and click on the link for a data sheet.
High-temperature, chemically resistant
sheet sealing material comprising exfoliated
vermiculite reinforced with stainless steel.
Thermiculite 894
Recommended for large diameter
flanges, high-temperature reactors,
and pressure vessels.
As with all types of fibrous sheeting, it is recommended that the type is tested for suitability as grades do vary.
We are happy to advise on any application, but final responsibility lies with the customer.