Hi Jim, Is mineral spirits, almost pure methanol? If so it can soften a hammer down quite radically. Roger.J At 08:08 AM 28/03/00 -0500, you wrote: > >In a message dated 3/28/2000 7:29:00 AM, you wrote: > ><<So far it looks like nobody knows what mineral spirits will do to a >Steinway pinblock or action. > >Any guesses out there?>> > >Well Roger since "guesses" are acceptable :-) > The mineral spirits make a lubricating/sizing action take place in the >action centers..,as you have discovered and reported and will eventually, >many years down the road, possibly lead to the formation of verdigris in >those affected parts. (this based on experience following a tech who years >ago thought mineral spirits was a magic elixir and used it very copiously on >'everything'...most of what he treated has developed some degree of >verdigris...even in those instruments where it is not commonly found.) Other >than these two thingees and some 'staining' I would not "guess" the mineral >spirits to be a problem but I haven't seen the 'damage' :-) > The pin block is a very different matter though. I would "guess" that >initially the pins in the affected area would be less tight 'feeling' than >normal. After the mineral spirits has dried sufficiently I would "guess" that >some degradation of torque values would be apparent and as the block dries >out as much as it ever will I would expect the affected pins to develop a >snapping/jerky feel...but that is just a guess based on SWAG rather than >experience. >Jim Bryant (FL) > Roger Jolly Saskatoon, Canada. 306-665-0213 Fax 652-0505
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