Nylon vs Polypropylene Castor Wheels

Are you unsure of the differences, do you know what you’re buying?

Nylon & Polypropylene are both forms of plastic and in there natural form have a similar white colour making it difficult to tell the difference between them.

When buying wheels, often consumers are offered the choice of these two materials, well at least at Rybro® we do, other manufacturers will sell you anything and call it Nylon, so we are going to inform you about the two options you have, and give you a simple test to tell the difference.

Nylon (Premium Series) Polypropylene (Standard Series)
Good static load bearing properties Low Cost Durable Wheel
Low Rolling Resistance Crack Resistant
Minimum lubrication required Resistant to most liquids
Resistant to most liquids Acid/Alkali Resistant
Higher wear resistance over Polyprop High corrosion resistance
Temperature Zone = (8˚C to 80˚C)  Great in Low Temperatures(-20˚C to 50˚C)
Not recommended for freezer use Not recommended for high loading (front rollers on pallet jack)
Not recommended where wheels are cleaned daily with high pressure washers, this will increase rate of wear

To test the difference and confirm you’re buying what you think you’re buying simply place the wheel into water.

Nylon is heavier than water, with a specific gravity of 1.07, and Polypropylene is lighter with a specific gravity of 0.91.

If it sinks, its Nylon

If you need any further information in order to make an informed decision please feel free to contact us