| The Shop > Finishing |
| sourcing 600 & 800 grit carborundum in the UK |
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| pipemakermike:
Hi John I already have most grades available in diamond but, a friend who has made a lot of engines is of the opinion that diamond is likely to become imbedded in the bore where as carborundum doesn't. He only uses diamond for finishing a chrome bore and uses a castiron lap for that. Now, I don't have enough experience to know if this is likely to be a problem - any ideas? One thing that I am sure of is that the quality of the bore and the piston fit are big players in the easy handling of these small Diesels. |
| krv3000:
HI just my bit your Friend is right diamond will embed itself into soft metals |
| Fergus OMore:
Surely silicon carbide and carborundum are one and the same? However, probably what you are wanting is in small quantities and I would suggest that you might contact suppliers to dental manufacturers. However, there are things like tripoli compound which I know has a 600g and car accessory firms do sticks. I've still got a one from then- a brown grade. Does this help? |
| Bluechip:
--- Quote from: Fergus OMore on February 20, 2012, 10:30:06 AM ---Surely silicon carbide and carborundum are one and the same? --- End quote --- So it is ... :scratch: I never knew that. Always thought Carborundum was a sort of Trade Mark ... Ah well. A bit late now ... BC |
| andyf:
--- Quote ---I never knew that. Always thought Carborundum was a sort of Trade Mark ... --- End quote --- I think it might be, BC. Perhaps they initially wanted to create an association with corundum (the non-trade name for naturally occurring aluminium oxide), because that too is an abrasice, though not as hard as silicon carbide, of course. "You've tried corundum; now try our new Carborundum, which is much harder" sort of thing. Andy |
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