Medium wheel additive for wood

The perfect balance between traction and control on wooden track

When excessive grip penalises driving and lack of adhesion causes time loss in every corner, the answer lies in finding the middle ground. The NSR4602 medium tyre additive is specifically designed for wooden tracks, offering balanced traction that responds to both technical club driving and the preparation of cars for more demanding training sessions.

Features and function

Tyre additives are one of the most commonly used resources in the preparation of competitive slot cars. Applied directly to the tread of the tyres, they modify the coefficient of friction with the track surface, directly affecting launch traction, corner stability, and the overall behaviour of the car.

• Medium formulation: intermediate grip, ideal when sufficient traction is sought without reaching locking or oversteer induced by excessive grip.
• Optimised for wood: the wooden surface has a characteristic texture and absorption; this additive is formulated to react effectively on that type of track.
• Reference NSR4602: product from the NSR range, a benchmark brand in the world of competitive slot racing with extensive experience in high-performance spare parts and consumables.

Recommended applications

This additive is particularly useful in the following contexts:

• Wooden tracks with a typical club finish, where the natural grip of the surface is moderate.
• Cars with soft rubber tyres that already offer a certain level of grip and need fine-tuning.
• Competitors seeking stable and consistent behaviour throughout the session, without cold grip spikes or progressive loss of traction.
• Preparers alternating between different formulations (soft, medium, hard) depending on track conditions each day.

Behaviour and performance

The choice of the correct formulation makes the difference between a car that turns with precision and one that behaves erratically. The medium level is, in many cases, the optimal starting point for calibrating the setup: neither too much grip —which can cause oversteer or premature wear— nor too little —which reduces exit speed and compromises stability in fast corners—.

On wooden tracks, where the tyre response can vary according to ambient temperature and surface condition, having all three formulations on hand allows for adapting the car to the actual conditions of each session.

Usage recommendations

• Apply the additive sparingly to the tread of the tyre; excess does not improve grip and may leave residues on the track.
• Allow it to act for a few seconds before placing the car on the track, so the product penetrates the tyre's pores.
• Always perform warm-up laps to activate grip progressively.
• Store the product capped and in a cool place, away from direct heat sources.

Frequently asked questions

What is the difference between the medium and soft additive?

The soft formulation provides more immediate grip, useful on surfaces with low natural grip or with high hardness tyres. The medium offers a more balanced and progressive grip, recommended when the track already has an acceptable level of traction or when a more consistent behaviour is sought throughout the session.

Can it be used on plastic tracks?

This product is formulated and optimised for wooden tracks. For plastic tracks, NSR has specific formulations adapted to that surface. Using the incorrect additive may not yield the expected result.

How often should it be applied?

It depends on the type of tyre, the duration of the session, and the track conditions. As a general reference, it is usually reapplied between sessions or when a noticeable loss of traction is perceived. There is no universal fixed cadence.

Is it compatible with all NSR tyres?

The NSR additive is designed to be used with the brand's own tyres, although it is also common to use it with tyres from other slot brands. The response may vary depending on the rubber composition of the tyre.

Does it affect tyre wear?

Correct application does not significantly accelerate wear. Excess product, on the other hand, can cause accumulation on the track and modify the behaviour of all cars running on it. Always apply sparingly.

The NSR4602 medium tyre additive is a purpose-formulated grip compound for wooden slot car tracks, designed to deliver balanced traction without compromising handling consistency. A key product for slot car racing preparation, it suits club-level competitors and serious hobbyists looking to fine-tune their car's setup on wood-surface tracks. Part of NSR's trusted range of slot car performance accessories and consumables.