Tar on the LCD screen of my VOM

[krw@att.bizzzzzzzzzzzz]

On Thu, 26 Apr 2012 12:11:22 -0700, Fred Abse <excretatauris@invalid.invalid>
wrote:

On Tue, 24 Apr 2012 19:34:07 -0400, Michael A. Terrell wrote:

Everyone else was suggesting Naphtha, which is a petroleum distillate

I thought it was a coal distillate, coke oven byproduct.

Naptha is a range of hydrocarbons that are generally just lighter than
gasoline. They can be made from oil, coal, or natural gas.

http://en.wikipedia.org/wiki/Naphtha

 

[Phil Hobbs]

"krw@att.bizzzzzzzzzzzz" wrote:

On Thu, 26 Apr 2012 12:11:22 -0700, Fred Abse <excretatauris@invalid.invalid
wrote:

On Tue, 24 Apr 2012 19:34:07 -0400, Michael A. Terrell wrote:

Everyone else was suggesting Naphtha, which is a petroleum distillate

I thought it was a coal distillate, coke oven byproduct.

Naptha is a range of hydrocarbons that are generally just lighter than
gasoline. They can be made from oil, coal, or natural gas.

http://en.wikipedia.org/wiki/Naphtha

The classical source for naphtha is white gas, i.e. butane plus various
pentane and hexane isomers that condense from natural gas.

Cheers

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510
845-480-2058

hobbs at electrooptical dot net
http://electrooptical.net

 

[whit3rd]

A lot of solvents will take off the impure hydrocarbons in tar.
Mineral oil (baby oil), waterless hand cleaner, and (preferably
odorless) paint thinners of the flammable kind. Maybe other
stuff, too (did you try liquid soap?).

On Saturday, April 21, 2012 8:29:31 PM UTC-7, W. eWatson wrote:

A worker was setting up to tar some roof cracks on my bench on the
garage today. My VOM was nearby, and later I noticed 3 spots of tar.
Each less than 1 mm. Maybe 0.3 mm. I tried using my finger nail to get
the biggest one off, but no effect. Paint thinner? ?? Forget it?

 

[Fred Abse]

On Thu, 26 Apr 2012 20:31:06 -0400, krw@att.bizzzzzzzzzzzz wrote:

On Thu, 26 Apr 2012 12:11:22 -0700, Fred Abse
excretatauris@invalid.invalid> wrote:

On Tue, 24 Apr 2012 19:34:07 -0400, Michael A. Terrell wrote:

Everyone else was suggesting Naphtha, which is a petroleum distillate

I thought it was a coal distillate, coke oven byproduct.

Naptha is a range of hydrocarbons that are generally just lighter than
gasoline. They can be made from oil, coal, or natural gas.

http://en.wikipedia.org/wiki/Naphtha

I bow to your superior knowledge.

--
"For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled."
(Richard Feynman)

 

[W. eWatson]

On 4/21/2012 8:29 PM, W. eWatson wrote:

A worker was setting up to tar some roof cracks on my bench on the
garage today. My VOM was nearby, and later I noticed 3 spots of tar.
Each less than 1 mm. Maybe 0.3 mm. I tried using my finger nail to get
the biggest one off, but no effect. Paint thinner? ?? Forget it?
I finally tried (Sunyside) paint remover today. Worked like a charm.