Natural rubber, also known as latex, cannot be liquefied and re-solidified in the manner required by 3D printers. However, thermoplastic elastomers can achieve similar levels of flexibility and softness to rubber and have the thermal properties necessary for 3D printing.

Gaskets seal a connection between two components or flanges that have flat surfaces, while seals are used between engine parts, pumps, and shafts that rotate. Gaskets are used wherever a union or flange is required to prevent leaking. Gaskets are most commonly used as static seals.

For FDM 3D printing, 3D printer filament prices (for an everyday material like PLA or PETG) are around $20 to $50 per kilogram, or $60 to $120 for specialized engineering or support filaments. Entry-level SLA resins cost around $50 per liter, and most professional options cost around $150 to $400.

The sealing elements are typically made from a material (expanded graphite, expanded polytetrafluoroethylene (PTFE), vermiculite, etc.) suitable to the process fluid and application.