Joined: July 2004
||Posted: 22 May 2019,09:21
Nope: the slurry primer bond bridge needs to be freshly applied, within 2-3 minutes of being laid. You cannot batch process a whole load of flags in advance.
The SBR accelerates the setting process once exposed to air, so the working life of a primer in thin applications is pretty limited. If you make up a batch of primer beforehand and keep it in a bucket or similar, it will remain workable for a good or hour or so, but once it's applied as a thin film to the underside of a flag, it goes off damned quickly!
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