Hornady One Shot Primer Sealer lets you protect reloaded cartridges against weather and moisture with an industrial-grade, air-cured sealant. Simply apply the sealer in a circular motion around the edge of the primer after loading the cartridge and let dry. Includes four 3ml tubes of primer sealer.
Sinclair, Issue:5B, Page:011
Sinclair, Issue:5B, Page:024