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F.A.Q. Frequently Asked Questions about Bumper Plates

A bumper plate (or bumper plate) is made of high-density virgin or recycled rubber with a steel center ring. Unlike cast iron plates, bumper plates are designed to be dropped safely from above, protecting both the barbell and the floor thanks to their shock-absorbing properties.

For non-rubberized cast iron discs, surface rust can be removed using a wire brush and a solution of water and vinegar (or loosening products). After cleaning, it's essential to dry them thoroughly and apply a thin layer of lubricating oil or protective varnish to prevent future rusting.

Urethane (CPU) is a higher-end material than rubber: it's more durable, odorless, and won't leave marks on floors. Rexgym by Kingsgym urethane plates offer superior weight accuracy and exceptional durability, making them the ideal choice for commercial gyms and elite settings.

Yes, competitive powerlifting uses steel plates calibrated to very tight weight tolerances (often +/- 10 grams). The Rexgym line includes thin plates that allow for loads of over 400 kg on the barbell, ensuring the weight lifted is exactly as advertised..

It's possible, but not recommended during drops. If you drop the barbell, the larger diameter of the bumper will absorb all the shock, but the "dead" weight of the cast iron (often smaller in diameter) will apply excessive force to the center of the bumper, risking damage to the steel ring or the barbell itself..

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