Fuchs FUCHS-762 (200-Gram-Tube)

RENOLIT 762 High Temperature Jointing Compound

Overview

RENOLIT 762 High Temperature Jointing Compound is a high-temperature sealing compound developed by FUCHS Lubricants for sealing metal joints exposed to extreme heat. Designed primarily for preventing leakage of air and gases, it provides optimum sealing performance between 550°C and 760°C, while remaining effective over a broader temperature range under suitable operating conditions. Commonly used in aerospace and automotive exhaust systems, the compound is highly adhesive to metal surfaces, non-combustible, and can be removed after service for maintenance.

Key Technical Specs

• Product Type: High-temperature jointing compound
• Appearance: Light-coloured, almost odourless paste
• Operating Temperature (Optimum): 550°C to 760°C
• Effective Temperature Range: Approximately 200°C to 800°C (depending on joint design and operating conditions)
• Curing Temperature (when required): Approximately 100°C
• Application Method: Flexible knife blade or spatula
• Packaging: 225 g tube
• Combustibility: Non-combustible

Approvals & Specifications

• General Electric A15D6-S (Interim Approval) - High Temperature Jointing Compound
• Rolls-Royce MSRR 9294 Approved
• Recommended for Pratt & Whitney applications
• Recommended for Normalair/Garrett Turbochargers
• Recommended for Lucas CAV Turbochargers
• Recommended for Mikuni Carburettors
• Included in Perkins Service Bulletin TV8.540 (Jointing of Exhaust Manifold Sleeves)

Typical Applications

• Aircraft exhaust manifold sealing
• Turbocharger joint sealing
• High-temperature gas sealing
• Aircraft engine exhaust system maintenance
• Automotive exhaust manifold joints
• Rigid metal flange sealing
• Industrial high-temperature gas joint applications

Key Features & Benefits

• Excellent sealing performance at elevated temperatures.
• Highly adhesive to metallic joint faces.
• Non-combustible formulation for high-temperature service.
• Produces reliable gas-tight joints.
• Simple application using standard workshop tools.
• Can be separated after service without damaging components.
• Residue can be removed using hot water and brushing.
• Widely approved by major aerospace engine manufacturers.

Application Guidelines

• Apply a thin, even layer to both mating surfaces using a flexible knife or spatula.
• Assemble the joint immediately after application.
• Where in-situ curing is required, heat the assembled joint to approximately 100°C using a suitable heating method such as a hot-air blower.
• After service, separate joints by gently tapping with a soft mallet.
• Remove remaining compound by soaking components in hot water for approximately one hour before wire brushing.
• For larger components, apply hot water with a sponge or cloth before scraping or wire brushing.

Compatibility & Limitations

• Designed primarily for rigid metallic joint faces.
• Best performance achieved on smooth, distortion-free sealing surfaces.
• Suitable for sealing air and other gas joints.
• Performance depends on joint design and operating conditions.
• Process validation is recommended for specialised applications.

Packaging & Procurement

• 225 g dispensing tube
• Available through authorised FUCHS Lubricants distributors
• Previously marketed as SILKOLENE 762 High Temperature Jointing Compound

Why This Product is Chosen for AOG / MRO

• Provides reliable sealing of aircraft exhaust joints operating at extreme temperatures.
• Approved by leading aerospace engine manufacturers.
• Easy application reduces maintenance time.
• Can be dismantled during future maintenance without excessive component damage.
• Excellent durability under repeated thermal cycling.

Practical Suggestions for Your Team (AOG Mindset)

• Apply only a thin coating to avoid excess squeeze-out.
• Assemble components immediately after application for optimum sealing.
• Ensure joint faces are clean, smooth and free from distortion.
• Use controlled heating where in-situ curing is required.
• Keep hot water available during overhaul operations to simplify removal of cured compound.

Manufacturer / Aviation Spec Codes

• Product Name: RENOLIT 762 High Temperature Jointing Compound
• Manufacturer: FUCHS Lubricants (UK) PLC
• Previous Product Name: SILKOLENE 762 High Temperature Jointing Compound
• Product Type: High-temperature joint sealing compound
• Specifications: GE A15D6-S (Interim), Rolls-Royce MSRR 9294