Rimlex®/ Underhead Sealants
The Rimlex® seal is divided into the following system types.
1. Underhead sealing of torsional threaded fasteners.
2. Underhead sealing of rivets, clench nuts and tubes.
Torsional Rimlex® Applications
Rimlex® is a peripheral seal, which can be applied to the underhead bearing surfaces of bespoke fasteners, or other suitable components. Rimlex® can replace copper, aluminium and other more expensive sealing washers. The Rimlex® products are flexible organic based materials. When components are assembled the material is forced into any gaps between mating surfaces to form a robust seal. Different grades of the material exhibit various properties, but fuel, oil, brake fluid and antifreeze resistant sealants are available. Some varieties exhibit excellent re-use capabilities, and even when under torsional pressure, will seal after 12 or more re-uses. In most cases Rimlex® does not significantly alter torque tension characteristics of threaded components.
Rimlex® applications are being used by Cummins Engine Co, Eaton Transmissions, Ford, JCB, Jaguar, Land Rover and Perkins Engine Co on various engine, transmission and body components.
Rimlex® (Yellow) slightly harder than other Rimlex® materials. Has high re-use capabilities and exceptional chemical resistance. This product is specifically for use in 'O' ring (SEA J2244-1 ISO 6149-1) mating hole forms.
Rimlex® (Blue) has also been designed for use on fastener applications. The product is reusable and is resistant to many automotive oils, antifreeze and transmission fluids (ATF up to 120°C).
Rimlex® Ultratemp has been specifically designed for high temperature applications. The material is a high temperature RTV silicon (up to 300°C) with excellent gap filling properties.
Interface Geometry
The interface geometry of mating components is critical to correct functioning and reuse of Rimlex® seal. The mating hole, as a minimum should be burr free, chamfered and/or engineered to ensure Rimlex® material is not stripped or cut away during installation. In most cases an SAE J2244-1 (ISO 6149-1) hole form is recommended. The Rimlex® plug system is a bespoke product designed to seal high pressure oil and water galleries. When Rimlex® is used on conventional flanged fasteners an underhead fillet WA900 (ISO) form U is recommended for best results.
For new applications the tightening strategy should be developed in conjunction with our application engineers. To meet torque/tension requirements, the Rimlex® seal co-efficient of friction can be modified. The products can be readily applied to most electroplated finishes as well as aluminium, brass, stainless steel and organic coatings.
1. Underhead sealing of torsional threaded fasteners.
2. Underhead sealing of rivets, clench nuts and tubes.
Torsional Rimlex® Applications
Rimlex® is a peripheral seal, which can be applied to the underhead bearing surfaces of bespoke fasteners, or other suitable components. Rimlex® can replace copper, aluminium and other more expensive sealing washers. The Rimlex® products are flexible organic based materials. When components are assembled the material is forced into any gaps between mating surfaces to form a robust seal. Different grades of the material exhibit various properties, but fuel, oil, brake fluid and antifreeze resistant sealants are available. Some varieties exhibit excellent re-use capabilities, and even when under torsional pressure, will seal after 12 or more re-uses. In most cases Rimlex® does not significantly alter torque tension characteristics of threaded components. Rimlex® applications are being used by Cummins Engine Co, Eaton Transmissions, Ford, JCB, Jaguar, Land Rover and Perkins Engine Co on various engine, transmission and body components.
Rimlex® (Yellow) slightly harder than other Rimlex® materials. Has high re-use capabilities and exceptional chemical resistance. This product is specifically for use in 'O' ring (SEA J2244-1 ISO 6149-1) mating hole forms.
Rimlex® (Blue) has also been designed for use on fastener applications. The product is reusable and is resistant to many automotive oils, antifreeze and transmission fluids (ATF up to 120°C).
Rimlex® Ultratemp has been specifically designed for high temperature applications. The material is a high temperature RTV silicon (up to 300°C) with excellent gap filling properties.
Interface Geometry
The interface geometry of mating components is critical to correct functioning and reuse of Rimlex® seal. The mating hole, as a minimum should be burr free, chamfered and/or engineered to ensure Rimlex® material is not stripped or cut away during installation. In most cases an SAE J2244-1 (ISO 6149-1) hole form is recommended. The Rimlex® plug system is a bespoke product designed to seal high pressure oil and water galleries. When Rimlex® is used on conventional flanged fasteners an underhead fillet WA900 (ISO) form U is recommended for best results.
For new applications the tightening strategy should be developed in conjunction with our application engineers. To meet torque/tension requirements, the Rimlex® seal co-efficient of friction can be modified. The products can be readily applied to most electroplated finishes as well as aluminium, brass, stainless steel and organic coatings.
