 ... melt the hardest first, otherwise the most fusible will burn before the other is melted. 4. A sand-bath, or bright coals that do not flame, is the proper heat for oil varnishes : but give no more heat than is barely necessary to melt them. 5. The...  The Domestic Encyclopaedia: SNU-ZIZ - Página 231por Anthony Florian Madinger Willich - 1804Vista completa - Acerca de este libro
 | Hewson Clarke, John Dougall - 1817 - 928 páginas
...heat than is barely necessary to melt them. 5. The vessels should be glazed earthenware with a cover ; and new ones used, for copal varnish especially, every...or strain the varnish ; then let it rest at least forty-eight hours. The sediment will do for a coarser or more coloured varnish of the same kind : the... | |
 | Hewson Clarke, John Dougall - 1817 - 902 páginas
...barely uecesswy to melt them. . ,. , 5. The vessels should be glazed earthenware with a. cover ; arid new ones used, for copal varnish especially, every...or strain the varnish ; then let it rest at least forty-eight hours. The sediment will do for a coarser or more coloured varnish of the same kind: the... | |
 | 1819 - 440 páginas
...heat than is barely necessary to melt them. 5. The vessels should be glazed earthenware with a cover; and new ones used, for copal varnish, especially,...incorporated and well stirred together, add your hot oil of turpentme ; this should be about double the quantity of the oil employed; but the oil should not be... | |
 | Maria Eliza Ketelby Rundell - 1819 - 430 páginas
...heat than is barely necessary to melt them. 5. The vessels should be glazed earthenware with a cover ; and new ones used, for copal varnish especially, every...incorporated and well stirred together, add your hot oil of lurpenline ; this should be about double the quantity of the oil employed ; but the oil should not... | |
 | Hewson Clarke, John Dougall - 1825 - 892 páginas
...barely necessary to melt them. 5. The vessels should be glazed earthenware with a cover ; and new ones1 used, for copal varnish especially, every time. 6....Filter or strain the varnish; then let it rest at least forty-eight hours. The sediment will do for a coarser or more coloured varnish of the same kind : the... | |
 | Maria Eliza Rundell - 1837 - 596 páginas
...heat than is barely necessary to melt them. 5. The vessels should be glazed earthenware with a cover ; and new ones used, for copal varnish especially, every...quantity of the oil employed; but the oil should not he boiling hot when the turpentine is poured in, otherwise it may catch fire. Stir it. 7. Filter, or... | |
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