DIYAPASON-L Digest #266 - Friday, February 23, 2001
 
RE: cleaning pipes
  by "STEVE PITTS" <steve.pitts@adtran.com>
Re: cleaning pipes of oxidation
  by <TheGluePot@aol.com>
Re: [Residence Organs]  Re: cleaning pipes of oxidation
  by <mts@intergrafix.net>
 

(back) Subject: RE: cleaning pipes From: "STEVE PITTS" <steve.pitts@adtran.com> Date: Fri, 23 Feb 2001 14:09:52 -0600     I have some spotted metal pipes that have a white discoloration on some of the pipes..I have tried ordinary means to clean them to no avail....does anybody know how to get that stuff off?  
(back) Subject: Re: cleaning pipes of oxidation From: <TheGluePot@aol.com> Date: Fri, 23 Feb 2001 15:31:49 EST   In a message dated 2/23/01 12:10:24 PM Pacific Standard Time,=20 steve.pitts@adtran.com writes: <<=20 > I have some spotted metal pipes that have a white discoloration on some of > the pipes..I have tried ordinary means to clean them to no avail....does > anybody know how to get that stuff off? >>   Hello Steve:   In the industry this is called "sugaring" but in reality is just metal=20 oxidation/rust or corrosion. Normally pipes of high quality are given a coa= t=20 of clear lacquer that protects them for eons. During restoration a solution= =20 of hydrochloric acid is used to dissolve the oxidation and other industrial=20 cleaners like TSP or Gone=AE are used where the acid use would not be=20 reasonable. A lacquer solvent may be needed to remove the painted coating=20 for the cleaner to affect the metal underneath. Steel wool of 0000 grade or= =20 a ScotchBrite pad is gently used to mechanically remove the oxide in=20 conjunction with the cleaning solution. Once cleaned the pipe is rinsed=20 until ALL of the cleaning solution is washed off then a new coat of clear=20 lacquer is applied. I've seen pipework that looked like hell come back to=20 rival the chrome on a '53 DeSoto bumper!   Al Sefl   p.s. Don't use the hydrochloric acid unless ALL precautions are taken. e.g= ..=20 Use it outdoors, dilute it down to a 5% solution, wear a faceshield, wear a= =20 chemical apron, keep sodium bicarbonate solution neutralizer handy, wear=20 certified hole-free nitril gloves, etc........  
(back) Subject: Re: [Residence Organs] Re: cleaning pipes of oxidation From: <mts@intergrafix.net> Date: Sat, 24 Feb 2001 03:40:19 GMT   > In a message dated 2/23/01 12:10:24 PM Pacific Standard Time, > steve.pitts@adtran.com writes: > << > > I have some spotted metal pipes that have a white discoloration on some of > > the pipes..I have tried ordinary means to clean them to no avail....does > > anybody know how to get that stuff off?     Steve:   Try a little DOW bathroom cleaner (Scrubbing Bubbles) and a dishwashing sponge (loke coral or something a little heavier, not brillo, that's too scratchy). Clean with DOW and buff the surface lightly. Then spray again and allow to foam then buff. If the cycle goes through like that 3 times with no effect, you'll want to progress to the steps recommended by the esteemed Glue Pot. The above worked on a set of Gamba basses that I had from a Jardine organ. Some needed more attention, but for the most part, it's worth a shot, the results were good. Best luck.   Chris Malocheski, Malocheski Theater Systems