: Standard blocks are unfilled, but specialized versions exist with fillers like glass (for wear resistance), carbon (for static dissipation), or bronze (for high-load bearing).

g/cm³ for better wear resistance and a smooth, burr-free surface.

: High-quality blocks should have a density greater than

When purchasing a Teflon (PTFE) block, the primary considerations are the (Virgin vs. Reprocessed) and the dimensions required for your specific application, whether for industrial machining or hobbyist use like jewelry making. 1. Key Buying Considerations Material Grade :

Prices for Teflon blocks range from roughly for small custom cuts to over $250 for large industrial bars. What Is Teflon® PTFE, and What Is It Used For?

: Includes recycled material. It is more economical and suitable for non-critical parts where absolute purity isn't required.

: Made from pure resin with no recycled content. It offers the best chemical resistance, electrical insulation, and is FDA-approved for food and medical use.