General properties and applications

The GAMBIT MAGNUM sealing sheet is a composite of specially selected fibres, fillers and rubber. The use of high-performance aramid and mineral fibres, nano-fillers and a unique rubber composition (forming the discontinuous phase), as well as a specific cross-linking process, give the structure a different character from standard fibre-elastomer sheets.

Seals made from this sheet retain greater elasticity at elevated temperatures and offer increased resistance to media compared to standard sealing sheets, which translates into a longer service life.

Material

The GAMBIT MAGNUM gasket sheet is manufactured using:

• KEVLAR® aramid fibres
• mineral fibres
• fillers / nanofillers

The components are bound together by an HNBR rubber-based binder.

Technical data

• Designation according to DIN 28091-2: FA-AMZ-O
• Approvals / certificates: UDT
• Maximum operating pressure: 10 MPa
• Continuous operating temperature: –40°C to +370°C
• Short-term operating temperature: up to +420°C
• Continuous operating temperature in steam: up to +260°C
• Colour: orange

Dimensions

Standard sheet thicknesses:

• 0.3 / 0.5 / 0.8 / 1.0 / 1.5 / 2.0 / 2.5 / 3.0 / 4.0 / 5.0 mm

Thicknesses exceeding 5.0 mm are manufactured as laminated sheets.

Standard sheet size:

• 1500 × 1500 mm

Sheets up to 1500 × 3000 mm can be produced by arrangement.

Physico-chemical properties

• density: 1.8 g/cm³
• tensile strength across the grain (min.): 8 MPa
• compressibility: 5–15 %
• elastic recovery (min.): 45 %
• residual stress at 50 MPa / 16 h / 300°C (min.): 30 MPa
• residual stress at 50 MPa / 16 h / 175°C (min.): 32 MPa
• thickness increase – IRM 903 oil (150°C / 5 h): max 3 %
• thickness increase – reference fuel B (20°C / 5 h): max 5 %