Notes on Clear Fluxes (from Thompson Workbook)
> 2007 Soft Fusing Clear: A soft fusing clear that easily absorbs copper oxide
> 2008 Crackle Base Clear: A low expansion clear used as the base coat for the crackle technique when liquid form water base enamels are sued for the second coat. 2008 is also a good cover coat when working on titanium white steel panels
> 2009 Soft Fusing Clear: This soft fusing clear will clear up on copper on the first firing. It may produce 'break up' or 'pull through' when a subsequent coat of enamel is fired high
> 2010 Soft Fusing Clear: This soft fusing clear will clear up on copper on the first firing but requires more time and/or temperature than 2009. It may produce 'break up' or 'pull through' when a subsequent coat of enamel is fired high
> 2015 Golden Clear: This medium fusing clear has a gold colour. It works well under warm colours.
> 2020 Clear for Silver: This clear does not 'yellow' on silver. It should always be used when a clear enamel is needed on silver as the first coat. It may also be used on copper and gold. It is also the clear transparent that is suggested to use as a final coat in that is has a lower expansion than most of the other transparent clears
> 2030 Medium Fusing Clear: This clear is the best all-purpose clear. It works well under other enamels, opaques and transparents. Fire sufficiently to dissolve all copper oxide. One or two re-firings may be required.
> 2040 Hard Fusing Clear: This clear is harder than the above transparent clears. It is least likely to develop 'pull through' when applying subsequent applications of enamel. it should be fired sufficiently to dissolve all copper oxide