Silicone 20000CPS SPECIAL DIFFERENTIALS

The right viscosity to get the most out of your differential

In the preparation of a slot car, few details influence cornering behaviour as much as the correct treatment of the differential. The Silicone 20000CPS Special Differentials (MP012-20000) offers a high and stable viscosity, designed for drivers seeking progressive transmission and controlled torque distribution between the rear wheels.

Main features

• Viscosity: 20,000 CPS, in the high range of the silicone spectrum for differentials. Ideal when a more locked and stable response is sought, especially on tracks with fast and long corners.
• Special formulation: designed for slot car differentials, ensuring uniform distribution without degrading quickly due to the heat generated by friction.
• Wide compatibility: suitable for the most common types of differential in competitive and recreational slot racing.
• No damage to plastic or seals: the silicone base does not harm the materials typically used in the construction of slot differentials.

Function and performance

The viscosity of a silicone oil for differentials directly determines how torque is distributed between the wheels in corners. Higher viscosity means greater internal resistance: the differential takes longer to release the inner wheel, resulting in more stable and predictable behaviour, albeit somewhat more restrictive. With 20,000 CPS, this silicone is positioned in the high viscosity range, recommended for:

• Tracks with wide radius corners and high speeds.
• Drivers who prefer a car that does not oversteer on corner entry.
• Configurations where maximising exit traction is sought without the differential releasing too easily.

Application and assembly

The application is straightforward: simply place a small amount of silicone inside the differential before closing it. There is no need to apply excessively; a few evenly distributed drops are sufficient for the silicone to do its job. It is advisable to clean the differential before each new application to avoid the accumulation of degraded silicone residues or dirt.

• Always apply with the differential clean and dry.
• Carefully close the differential to avoid displacing the silicone before it is distributed.
• Test the behaviour on track before deciding whether to adjust to a higher or lower viscosity.

What driver profile is it intended for?

This 20,000 CPS silicone is the usual choice of club and competition drivers who already have experience adjusting their car and understand the effect viscosity has on track behaviour. It is not the first silicone they try: it is the one chosen when they know the track well and are looking for a specific and repeatable adjustment point.

Frequently asked questions

What is the difference between a 5,000 CPS silicone and a 20,000 CPS silicone for differentials?

The higher viscosity (20,000 CPS) offers more internal resistance in the differential, resulting in more stable behaviour and less differential in torque distribution. A 5,000 CPS silicone will allow the differential to release more easily, favouring the rotation of the car in tight corners.

How often should the silicone in the differential be renewed?

It depends on usage and the type of differential, but in general, it is recommended to check and renew the silicone after a certain number of racing sessions or when you notice changes in the car's behaviour in corners. Silicone degrades with heat and accumulated friction.

Is it compatible with ball and octopus or mushroom-type differentials?

Yes, this silicone is suitable for the most common types of differential in the slot world. Always check the recommendations of the manufacturer of your specific differential to confirm the most suitable viscosity.

Can I mix silicones of different viscosities?

In principle, yes, as they are all silicone-based, but it is not a recommended practice if you are looking for a precise and repeatable adjustment. The ideal is to clean the differential well before applying a different viscosity.

What happens if I apply too much silicone?

Excess can spill out of the differential and contaminate other components, such as the tyres, which would drastically reduce grip. Always apply the minimum necessary amount.

Silicone oil 20,000 CPS specially formulated for slot car differentials. This high-viscosity silicone lubricant ensures smooth, controlled torque distribution between rear wheels, improving corner stability and traction. Ideal for club racing and competition setups where precise differential tuning is essential. Compatible with the most common differential types in 1:32 and 1:24 scale slot cars. Reference MP012-20000.