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| chipenter:
Treat it like a car self etching primer and two pack paint , it's safe iff you brush it on only dangerous to breath the air bourn particals from spraying . |
| Manxmodder:
--- Quote from: awemawson on August 26, 2016, 06:28:07 AM ---Some foundries were notorious for making castings look 'fair' by filing blow holes and sinks with a mixture of black lead and iron filings (iron not steel - that's important). Done carefully you could barely tell what had happened :bugeye: I seem to remember that there was a concoction of flowers of sulphur and iron filings that set rock hard and could even be tapped (it was claimed) From: http://www.iforgeiron.com/topic/26942-repair-to-a-firepot/ A cement for stopping clefts or fissure of iron vessels can be made of the following: Two ounces muriate of ammonia, I ounce of flowers of sulphur, and I pound of cast-iron filings or borings. Mix these well in a mortar, but keep the mortar dry. When the cement -is wanted, take one part of this and twenty parts of clean iron borings, grind- together in a mortar. Mix water to make a dough of proper consistence and apply between the cracks. This will be useful for flanges or joints of pipes and doors of steam engines. --- End quote --- I seem to remember from an old book that sal ammoniac,sulphur and iron filings was part of the mix for one foundry cement...OZ. |
| Manxmodder:
--- Quote from: chipenter on August 26, 2016, 11:59:42 AM ---Treat it like a car self etching primer and two pack paint , it's safe iff you brush it on only dangerous to breath the air bourn particals from spraying . --- End quote --- Agree,we use 2 pack that way quite often on cast stuff.....OZ |
| JerryNotts:
I think I ought to throw in some of my relevant experience here as I used to work in a technical role for the two paintmakers which supplied the 'finishing' scheme to most of the manufacturers of machine tools when most were 'Made in Great Britain'. 'Oil based' fillers went out of use in the late 60s due to their slow setting time. The most recent products used, especially in Nottingham ( where the sales manager lived) and across the '600 Group' involved the use of a polyester body filler followed by an Oil resistant alkyd topcoat. The filler is closely related to auto body filler but with the binder content sufficient to prevent oil penetration, sanding properties were secondary, unlke those used on cars. Unfortunately the experts in this field got taken overn over by european owners and as the British machine tool industry, lke the paint industry, is only a shadow of its former self who knows what happes now? Jerry :beer: |
| Jo:
--- Quote from: Manxmodder on August 26, 2016, 11:55:04 AM ---I reckon you couldn't resist a Hardinge in hot pink :bugeye: .....OZ. --- End quote --- My Mr Silky is in original Exeter Grey :thumbup: Jo |
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