LEGO tyres are primarily made from SBS or SEBS, which are special types of thermoplastic elastomers designed to provide a soft feel and effective grip.
The Core Material: SBS or SEBS
LEGO System A/S utilizes specific thermoplastic elastomers, namely SBS (Styrene-Butadiene-Styrene) or SEBS (Styrene-Ethylene-Butylene-Styrene), for the production of their iconic tyres. These materials are chosen for their unique properties that are crucial for the functionality and play experience of LEGO vehicles.
Key Characteristics and Common Uses of SBS/SEBS:
- Soft Feel: The primary reason for using SBS or SEBS is to give LEGO tyres a distinct soft feel, which enhances grip on various surfaces and allows for more realistic movement and play.
- Durability: These materials are known for their resilience and ability to withstand repeated use, making them ideal for children's toys.
- Versatility: Beyond LEGO, SBS and SEBS are widely employed in a variety of industries due to their rubber-like properties and ease of processing. Common applications include:
- Vehicle Mudguards: Their flexibility and resistance to impact make them suitable for automotive components.
- Shoe Soles: They provide comfort, durability, and traction in footwear.
- Adhesives, Coatings, and Sealants: Their elastic properties are beneficial in these formulations.
- Medical Devices: Used where flexibility and biocompatibility are required.
Other Elastic Materials in LEGO Sets
While SBS/SEBS is the go-to material for tyres, LEGO uses other elastic components in its vast product range for different purposes.
- Silicone Parts: For other elastic elements that are generally quite rare in LEGO sets, the company uses white, red, and blue silicone parts. These are distinct from the tyre material and serve specific design functions requiring high elasticity and resistance.
- Latex Rubber: LEGO acknowledges that it cannot guarantee its toys are entirely free from latex rubber parts. However, this is a general statement about their products and not specifically for tyres, which are confirmed to be made from SBS or SEBS.
By utilizing SBS or SEBS, LEGO ensures that its tyres provide a satisfying tactile experience and functional performance, contributing significantly to the overall quality of its building sets.
