Polypropylene for the least expensive mobility: water resistant, lightweight, but noisy and not easy to roll on rough surfaces or over debris. Rubber includes (TPR) for floor protection, vibration dampening, and noise reduction—step up to polyurethane for greater durability.

These casters last many years without replacement if they are properly cared for. This is the key, proper care and preventive maintenance will greatly prolong caster life, while misuse and mistreatment can lead to premature failure.

Polyurethane wheels are more durable and have a longer lifespan than rubber wheels. They also provide better shock absorption and are quieter, making them ideal for carpeted floors. Polyurethane wheels are also resistant to chemicals, oils, and grease, which can cause damage to rubber wheels.

Thermoplastic or TPR wheels have a synthetic soft rubber tread bonded to a polyolefin core. These soft rubber wheels are floor safe and non-marking. This smooth rolling and quiet rubber wheel is resistant to oil, grease, water, and most solvents.