[pianotech] WD40 on pinblock

[Terry Farrell]

Ummmm, ya might want to check your info source Thumpy - maybe try hydrophobic rather than hygroscopic. WD40 displaces moisture, it does not absorb it.

From WD40.com:  
What does WD-40 Multi-Use Product do?
WD-40 Multi-Use Product fulfills five basic functions: 
1. LUBRICATES: The product's lubricating ingredients are widely dispersed and tenaciously held to all moving parts. 
2. PENETRATES: WD-40 Multi-Use Product loosens rust-to-metal bonds and frees stuck, frozen or rusted metal parts. 
3. PROTECTS: The product protects metal surfaces with corrosion-resistant ingredients to shield against moisture and other corrosive elements. 
4. REMOVES: WD-40 Multi-Use Product gets under dirt, grime and grease. Use it to remove gunk from tools, equipment and vehicles. WD-40 Multi-Use Product in liquid form (e.g., gallon) also dissolves adhesives, allowing easy removal of excess bonding material. 
5. DISPLACES MOISTURE: Because it displaces moisture, WD-40 Multi-Use Product quickly dries out electrical systems to eliminate moisture-induced short circuits.

Terry Farrell


On Aug 23, 2012, at 6:27 AM, Euphonious Thumpe wrote:

> "WD", as everyone on this list knows, stands for "Water Displacement". So it is an oil that is hygroscopic 
> ( absorbs water) and in piano actions WILL lubricate them until enough humidity has been absorbed from the air that the wood parts swell up and seize completely.
> 
> 
> Thumpe
> 
> From: David Boyce <David at piano.plus.com>; 
> To: <pianotech at ptg.org>; 
> Subject: Re: [pianotech] WD40 on pinblock 
> Sent: Thu, Aug 23, 2012 9:37:08 AM 
> 
>>  I once followed a store tuner on a new Yamaha with a "squeaking damper" complaint. He'd rocked the action forward and emptied a WD-40 can inside. He soaked strings, bridges, soundboard, the entire back side of the action, hammers, dampers, and key ends. The squeak, however, eluded him. The piano was trash. That was before Barney, unfortunately.
>> 
>> Ron N 
> 
> I think that's kinda wonderful, in a horrible sort of way.  It's like people who are "studying" some text or other, and use a yellow highlighter pen to highlight every line of every paragraph, except for the odd highly relevant phrase here and there.....
> 
> It's funny how some people lack the wit to properly "diagnose", to actually listen for WHERE the squeak or creak is coming from, and treat THAT.  One hopes there are not too many Doctors who work like the WD40 guys.
> 
> I suppose on the same general principle, if the piano was making something in the room rattle or resonate, the WD40 guy would just spray the whole entire room, walls, floor, and ceiling.
> 
> Best regards,
> 
> David.

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