Heli-Coil® Primer-Free® Coated Inserts
Eliminate the need for costly primers and epoxies.
![heli-coil primer free inserts](/-/media/Web/SEF/Assets/Product-Assets/Heli-Coil-Primer-Free-Insert.jpg?h=380&w=448&la=en&hash=D306F9CE12C63516A48906E8AF0A810F)
- Contains no Hexavalent chromium
- Eliminates need for chromate primers
- Provides added lubricity for easier installation
- No additional hole preparation necessary
- Ideal for aluminum & magnesium applications
- Meets Aerospace Standards
![heli-coil primer free coated insert installed cost comparison chart](/-/media/Web/SEF/Assets/Product-Assets/chart-product-primer-free-insert-installed-ost-comparison-chart.jpg)
The chart above illustrates the significant difference in installed cost when comparing Primer-Free® inserts with inserts coated with liquid chromate primer. Significant savings - in excess of 20% - can be achieved when utilizing Primer-Free® inserts. These savings are largely due to the elimination of the application of the liquid chromate primer, which is a labor-intensive process and often results in inconsistent coverage of the threads.
![heli-coil primer free coated inserts corrosion resistance comparison chart](/-/media/Web/SEF/Assets/Product-Assets/chart-product-primer-free-insert-corrosion-resistance-comparison.jpg)
Primer-Free® inserts have undergone extensive salt fog testing per ASTM B-117. After exposure, the samples were sectioned to expose the threaded insert for examination. When protecting against galvanic corrosion, Primer-Free® inserts did consistently meet or exceed the performance of insert assemblies containing liquid chromate primer.