{"id":5111,"date":"2026-11-05T12:39:53","date_gmt":"2026-11-05T04:39:53","guid":{"rendered":"https:\/\/ptfesuppliers.com\/ptfe-vs-peek-for-precision-industrial-parts\/"},"modified":"2026-11-05T12:39:53","modified_gmt":"2026-11-05T04:39:53","slug":"ptfe-vs-peek-for-precision-industrial-parts","status":"publish","type":"post","link":"https:\/\/ptfesuppliers.com\/fr\/ptfe-vs-peek-for-precision-industrial-parts\/","title":{"rendered":"PTFE vs PEEK for Precision Industrial Parts"},"content":{"rendered":"

Short answer:<\/strong> PEEK beats PTFE on strength, stiffness, wear and creep by wide margins and costs 5–15x more; PTFE wins on chemical universality, friction, dielectrics and price. In precision parts the question is almost always “is PEEK’s stiffness needed, or is PTFE’s chemistry the point?” — parts rarely need both, and hybrids (PTFE-filled PEEK, PEEK-guided PTFE) exist for the rare cases that do.<\/p>\n

These materials sit at opposite ends of the fluorinated-plastics world: PTFE maximizes inertness and slipperiness at the cost of softness; PEEK maximizes mechanical performance at high temperature while remaining chemically excellent — just not universal. The comparison below is by the property that drives your part.<\/p>\n

Property comparison for precision parts<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Property<\/th>\nPTFE<\/th>\nPEEK<\/th>\n<\/tr>\n
Tensile strength<\/td>\n~15–35 MPa<\/td>\n~100 MPa<\/td>\n<\/tr>\n
Stiffness<\/td>\nVery low<\/td>\n~70x higher<\/td>\n<\/tr>\n
Continuous temperature<\/td>\n~260°C (soft — strength near zero when hot)<\/td>\n~250°C with load capacity<\/strong><\/td>\n<\/tr>\n
Cold flow<\/td>\nHigh<\/td>\nLow<\/td>\n<\/tr>\n
Wear<\/td>\nPoor–fair<\/td>\nExcellent<\/td>\n<\/tr>\n
Chemical range<\/td>\nUniversal<\/td>\nExcellent but attacked by strong acids, some halogens\/solvents at temperature<\/td>\n<\/tr>\n
Friction<\/td>\n~0.05–0.10<\/td>\n~0.2–0.3 (worse; fillers help)<\/td>\n<\/tr>\n
Dielectrics<\/td>\nExcellent<\/td>\nhttps:\/\/ptfesuppliers.com\/product-category\/ood<\/td>\n<\/tr>\n
Relative cost<\/td>\n1×<\/td>\n~5–15×<\/td>\n<\/tr>\n<\/table>\n

Decision patterns<\/h2>\n