Contains

Copper

May React With

Selenium, sulphur, and reactive glasses

Cold Characteristics

Uniform colour

Working Notes

It may have a dark colour reaction at the interface with cadmium/selenium or sulphur glasses. It may have a red-hued colour reaction with reactive glasses.

Copper Blue may deposit a residue onto shelf releases (ThinFire, primer) when firing to a full fuse or hotter. Scrape and thoroughly buff off the used primer, then apply a fresh primer; or remove the used Thinfire and replace it with a new one to avoid possible contamination effects in subsequent firings. These contamination effects are essentially reactions, possible when Selenium, Sulfur and Reactive styles are fired while in contact with a copper-contaminated separator.