Substitutes for colophony fluxes

In your answer # 4 you wrote "clinically there seems to be a clear case for substitution…" do you mean that colophony is being less used as a soldering flux today? If positive, since when this is occurring and what is the most common/more common flux used today in the western world for soft soldering ? Moore VC, Burge PS, Occupational asthma to solder wire containing an adipic acid flux , Eur Respir J, 2010;36:962-963, Moore VC, Manney S, Vellore, Burge PS, Occupational asthma to gel flux containing dodecanedioic acid, Allergy, 2009;64:1099-1100, Stevens JJ, Asthma due to soldering flux: a polypropylene glycol mixture, Ann Allergy, 1976;36:419-422,

Occupational Asthma, Specialist, 10/25/2013, 10/25/2013,

Colophony-based fluxes have been largely replaced by a wide range of alternatives, we have seen occupational asthma with some of them, but it seems much less common. It is still possible to get colophony exposure when using non-colophony fluxes for repairs when the original soldering used colophony fluxes

10/25/2013