Silverflo 55 Flux

[steve whedonParticipant @stevewhedon36834]

I was just wondering if Silverflo 55 flux has a shelf life. I have a plastic tub of the stuff still in powder form. It is at least 20 years old. Sorry if I have given it an incorrect title but that is what is written on the tub with a felt tip pen!

[steve whedonParticipant @stevewhedon36834]

[Neil WyattModerator @neilwyatt]

Should be fine if kept dry.

Neil

[Keith HaleParticipant @keithhale68713]

Hi Steve,

You are correct – Silverflo 55 flux does not exist!

You have a flux that has been used in the past with silverflo 55.

It could be either a low temperature short life flux or a higher temp long life flux. Not knowing your brazing requirements, it is impossible to suggest the best alternative either EF flux or HT5.

Sorry Neil,

but both have a long shelf life made longer by the addition of a little detergent and water to make a yoghurt consistency paste. When this dries out (and it will) it can be reconstituted with a little more water.

No need to throw it away when it dries as hard as a brick!

Keith

[Neil WyattModerator @neilwyatt]

> No need to throw it away when it dries as hard as a brick!

Well I figured that out for myself

Neil

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