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LUBRICANTS

What lubricants do I use and where?

There are a wide variety of assembly lubricants available... almost to the point of confusion.  We use Brembo Seal Conditioning Fluid & Red Rubber Grease during re-assembly of EPDM piston seals and silicone grease for floating caliper slide pins.

RED RUBBER GREASE - The purpose, features and uses of red rubber grease.

Why do we need Red Rubber Grease?

Rubber without lubrication dries out, hardens, crackles and breaks. If affected by gasoline or if lubricated with petroleum-based grease, it swells, loses its shape and does not do the work as intended. When in contact with moving parts, it wears out from friction (an o-ring against a brake caliper or cylinder piston, a dust boot against a clutch plunger) and also may rupture. And, finally, during assembly, it is hard to push a piece of dry rubber into a casing and even more so to slide one rubber part onto another.

To help in all of the above situations red grease was designed, Castrol RRG being one of the best known brands. Being a vegetable oil based lubricant this grease does not harm rubber and can be used for its protection, lubrication and preservation. It can also be a great help during assembly of units containing parts made of natural or synthetic rubber and even plastic (installing bushings, for example).

Because of a unique combination of two of its qualities: natural rubber compatibility and brake fluid compatibility the main use of Red Rubber Grease is in hydraulic brake/clutch applications.

What is the main purpose of RRG?

Preserving natural rubber parts, lubricating rubber to rubber or rubber to metal contacts, helping in assembly of units containing rubber parts.

Red rubber grease uses

Because of the qualities mentioned above Red Rubber Grease it is ideal for use in hydraulic systems, namely, hydraulic brakes and clutches or shock absorbers, pneumatic systems containing rubber parts (o-ring, seals). For this reason a sachet of the red grease comes as a standard part of quality brake/clutch and motorcycle fork oil seal and dust seal repair kits.

In contrast to regular automotive lubricants that are petroleum-based, red rubber grease is vegetable oil based (red dye is added for identification purposes) - this is the reason why it's "rubber friendly". Being that, RRG can be used where ever natural rubber is used in the car.

Here is a comprehensive list of RRG properties:

  • Fully compatible with natural and synthetic rubbers

  • Compatible with brake fluids and some hydraulic oils.

  • Rust inhibitor (protects from oxidation and rust).

  • RRG is water resistant.

  • Hight temperarure. The grease can be used in applications with temperatures up to 210-230F. It will not melt and will not contaminate brake pads.

  • Petrol resistant. Although it will get contaminated in contact with gasoline, but still it will protect rubber parts from it.

  • High chemical and structural(mechanical) stability.

  • High resistance against water washing (will stay on after a rain, or car wash).

  • Has high wear protecting quality.

In other words, RRG can be used for lubrication where there is rubber and there is no gasoline: o-rings, non-petroleum oil and dust seals, dust boots, bushings.

Original Article HERE

Brembo SCF (Seal Conditioning Fluid)

This fluid has been designed to properly condition the caliper seals before assembly and the installation.  When used correctly, the seals will not require any bedding onto the pistons and the correct seal friction and optimum design performance is achieved immediately.

DETAILS:

  • Designed to lengthen the life of the caliper seals

  • Helps with the piston installation

  • Recommended by Brembo for every caliper installation

Silicone Grease

Silicone grease is a jack of all trades, known for its thick viscosity, consistency, and extreme working temperature range. Unlike oil-based greases, it is safer on more brake materials.  We only use silicone grease on floating caliper slide pins - NEVER on piston seals.

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