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Science Forum Index » Materials Forum » High Temperature, Temporary Adhesive, Clear Transparent, com
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| WMGS |
Posted: Fri Sep 12, 2003 9:35 pm |
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Guest
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Dear All ,
I am looking for a temporary adhesive, clear transparent (do not
change color and remain clear when heated), tolerate high temperatures
up to 600 fahrenheit long hours, sticks glass to glass, and comply
with FDA requirements . Anybody has suggestions ?
What are the forms of these adhesives ? Liquids ? Apply with a gun ?
Or double sided tape like ?
Thank you in advance
WMGS |
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| Uncle Al |
Posted: Sat Sep 13, 2003 8:45 am |
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Guest
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WMGS wrote:
Quote:
Dear All ,
I am looking for a temporary adhesive, clear transparent (do not
change color and remain clear when heated), tolerate high temperatures
up to 600 fahrenheit long hours, sticks glass to glass, and comply
with FDA requirements . Anybody has suggestions ?
What are the forms of these adhesives ? Liquids ? Apply with a gun ?
Or double sided tape like ?
Colorless, transparent, non-reactive at 315 C sustained, and
*temporary?" That's a zero-star movie on the sci-fi cable channel.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
"Quis custodiet ipsos custodes?" The Net! |
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| William Kaukler |
Posted: Sat Sep 13, 2003 10:31 pm |
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Guest
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Molten salt (various kinds). Remove with water. Your question is not as
simple as you make it out to be. This is typical for newbies.
You didn't stipulate how strong the bond had to be and didn't stipulate the
adhesive could not be heated above 600F to apply it. You also didn't say how
many thermal cycles it had to withstand. You didn't say how long it should
take to remove the adhesive. You didn't say if had to be inorganic and you
didn't say how quickly the bond had to be made. You didn't say how fast the
heat would have to be applied in service or if it fluctuated rapidly. You
didn't say how large a gap in the joint you required. Lots of options.
Dr. K
"WMGS" <98901118R@polyu.edu.hk> wrote in message
news:74ecc3cb.0309121935.1e99568e@posting.google.com...
Quote: Dear All ,
I am looking for a temporary adhesive, clear transparent (do not
change color and remain clear when heated), tolerate high temperatures
up to 600 fahrenheit long hours, sticks glass to glass, and comply
with FDA requirements . Anybody has suggestions ?
What are the forms of these adhesives ? Liquids ? Apply with a gun ?
Or double sided tape like ?
Thank you in advance
WMGS |
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| Back to top |
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| WMGS |
Posted: Mon Sep 15, 2003 9:45 pm |
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Guest
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Dear All,
I am looking for a temporary adhesive, to stick a glass face of a dial
thermometer into an oven (household ones) on the oven's glass door . I
would like to remove the thermometer to clean it ocassionally. And
also remove the thermometer and the "temporary adhesive" to clean the
charred oven's door . To allow reading the temperature, the adhesive
should be preferrably transparent clear. And also comply with FDA
requirements (it should not toxicate the oven and give fumes or
contaminate the food when people accidentally touches their food with
the adhesive). The oven works within 50 to 600 degrees fahrenheit or
10 to 350 degrees celcius for 3 hours . The thermometer is 80 grams
with the dial face of 40 square centimeters (approximately 4 to 5
square inches). The adhesive sticks glass to glass . If Clearly
transparent is not possible, then we may think of sticking the
thermometer's stainless steel frame to the glass oven door .
While for temporary adhesive , I think it is in the form of double
sided tape or glue which cures within 20 minutes and can be removed by
peeling or any other means which can be done by moms and non
proffesionals. It preferrably can be reapplied again or throw away
when removed when this option is much afforadable.
Thank you all for your help.
WMGS
Uncle Al <UncleAl0@hate.spam.net> wrote in message news:<3F632D9F.582F66D6@hate.spam.net>...
Quote: WMGS wrote:
Dear All ,
I am looking for a temporary adhesive, clear transparent (do not
change color and remain clear when heated), tolerate high temperatures
up to 600 fahrenheit long hours, sticks glass to glass, and comply
with FDA requirements . Anybody has suggestions ?
What are the forms of these adhesives ? Liquids ? Apply with a gun ?
Or double sided tape like ?
Colorless, transparent, non-reactive at 315 C sustained, and
*temporary?" That's a zero-star movie on the sci-fi cable channel. |
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| Uncle Al |
Posted: Tue Sep 16, 2003 11:59 am |
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Guest
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WMGS wrote:
Quote:
Dear All,
I am looking for a temporary adhesive, to stick a glass face of a dial
thermometer into an oven (household ones) on the oven's glass door . I
would like to remove the thermometer to clean it ocassionally. And
also remove the thermometer and the "temporary adhesive" to clean the
charred oven's door . To allow reading the temperature, the adhesive
should be preferrably transparent clear. And also comply with FDA
requirements (it should not toxicate the oven and give fumes or
contaminate the food when people accidentally touches their food with
the adhesive). The oven works within 50 to 600 degrees fahrenheit or
10 to 350 degrees celcius for 3 hours . The thermometer is 80 grams
with the dial face of 40 square centimeters (approximately 4 to 5
square inches). The adhesive sticks glass to glass . If Clearly
transparent is not possible, then we may think of sticking the
thermometer's stainless steel frame to the glass oven door .
While for temporary adhesive , I think it is in the form of double
sided tape or glue which cures within 20 minutes and can be removed by
peeling or any other means which can be done by moms and non
proffesionals. It preferrably can be reapplied again or throw away
when removed when this option is much afforadable.
You can buy high temp silicone adhesive on release tape that only
leaves the silicone. The average oven cooks at 350-400 F or 180-200
C. I don't see this working as a consumer item. The adhesive will
bake in over time and rapidly become intractible.
A magnet on a sidearm to attach to the steel side will not like the
temp (Curie temperature). A wireless probe or any internal
electronics will not like the temp. Any gizmo set back on an oven
shelf will be hard to read through the (soiled) oven door window. A
thermistor, thermocouple, or remotely interrogated passive oscillator
is cheap - but not its readout. A liquid crystal strip won't like the
temp. Opposed optical flats will stick together nice as you please
without any adhesive at all, but they cannot be separated. Blackbody
detectors (Probe-Eye) are expensive. A strip of encapsulated salts
that go sequentially molten and clear with temp still must be attached
to the window.
Why don't you take a cheap bimetallic whatever and attach it to a
telescoping or articulated arm that grabs an oven shelf? KISS.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
"Quis custodiet ipsos custodes?" The Net! |
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| WMGS |
Posted: Tue Sep 16, 2003 7:45 pm |
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Guest
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Thank you very much for your advice . It did gave me a clear picture
of where my situation is . But I don't know what molten salts are ?
What are molten salts ? Where can I buy them ? How are they used/
applied to ? I want to try this option but not for the oven
thermometer .
Uncle Al <UncleAl0@hate.spam.net> wrote in message news:<3F674F71.882B3596@hate.spam.net>...
Quote: WMGS wrote:
Dear All,
I am looking for a temporary adhesive, to stick a glass face of a dial
thermometer into an oven (household ones) on the oven's glass door . I
would like to remove the thermometer to clean it ocassionally. And
also remove the thermometer and the "temporary adhesive" to clean the
charred oven's door . To allow reading the temperature, the adhesive
should be preferrably transparent clear. And also comply with FDA
requirements (it should not toxicate the oven and give fumes or
contaminate the food when people accidentally touches their food with
the adhesive). The oven works within 50 to 600 degrees fahrenheit or
10 to 350 degrees celcius for 3 hours . The thermometer is 80 grams
with the dial face of 40 square centimeters (approximately 4 to 5
square inches). The adhesive sticks glass to glass . If Clearly
transparent is not possible, then we may think of sticking the
thermometer's stainless steel frame to the glass oven door .
While for temporary adhesive , I think it is in the form of double
sided tape or glue which cures within 20 minutes and can be removed by
peeling or any other means which can be done by moms and non
proffesionals. It preferrably can be reapplied again or throw away
when removed when this option is much afforadable.
You can buy high temp silicone adhesive on release tape that only
leaves the silicone. The average oven cooks at 350-400 F or 180-200
C. I don't see this working as a consumer item. The adhesive will
bake in over time and rapidly become intractible.
A magnet on a sidearm to attach to the steel side will not like the
temp (Curie temperature). A wireless probe or any internal
electronics will not like the temp. Any gizmo set back on an oven
shelf will be hard to read through the (soiled) oven door window. A
thermistor, thermocouple, or remotely interrogated passive oscillator
is cheap - but not its readout. A liquid crystal strip won't like the
temp. Opposed optical flats will stick together nice as you please
without any adhesive at all, but they cannot be separated. Blackbody
detectors (Probe-Eye) are expensive. A strip of encapsulated salts
that go sequentially molten and clear with temp still must be attached
to the window.
Why don't you take a cheap bimetallic whatever and attach it to a
telescoping or articulated arm that grabs an oven shelf? KISS. |
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| RThomp7367 |
Posted: Tue Sep 16, 2003 8:51 pm |
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Guest
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Quote: I am looking for a temporary adhesive, clear transparent (do not
change color and remain clear when heated), tolerate high temperatures
Silicones are the only class of adhesives I can think of that could possibly
meet all of your requirements.
RT |
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| William Kaukler |
Posted: Wed Sep 17, 2003 12:55 am |
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Guest
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Molten salt is molten salt.
This is too high tech for you if you don't recognize the concept. You don't
have the ability to implement it and unlikely the inclination to follow
through.
Dr. K
"WMGS" <98901118R@polyu.edu.hk> wrote in message
news:74ecc3cb.0309161745.180f2b48@posting.google.com...
Quote: Thank you very much for your advice . It did gave me a clear picture
of where my situation is . But I don't know what molten salts are ?
What are molten salts ? Where can I buy them ? How are they used/
applied to ? I want to try this option but not for the oven
thermometer .
Uncle Al <UncleAl0@hate.spam.net> wrote in message
news:<3F674F71.882B3596@hate.spam.net>...
WMGS wrote:
Dear All,
I am looking for a temporary adhesive, to stick a glass face of a dial
thermometer into an oven (household ones) on the oven's glass door . I
would like to remove the thermometer to clean it ocassionally. And
also remove the thermometer and the "temporary adhesive" to clean the
charred oven's door . To allow reading the temperature, the adhesive
should be preferrably transparent clear. And also comply with FDA
requirements (it should not toxicate the oven and give fumes or
contaminate the food when people accidentally touches their food with
the adhesive). The oven works within 50 to 600 degrees fahrenheit or
10 to 350 degrees celcius for 3 hours . The thermometer is 80 grams
with the dial face of 40 square centimeters (approximately 4 to 5
square inches). The adhesive sticks glass to glass . If Clearly
transparent is not possible, then we may think of sticking the
thermometer's stainless steel frame to the glass oven door .
While for temporary adhesive , I think it is in the form of double
sided tape or glue which cures within 20 minutes and can be removed by
peeling or any other means which can be done by moms and non
proffesionals. It preferrably can be reapplied again or throw away
when removed when this option is much afforadable.
You can buy high temp silicone adhesive on release tape that only
leaves the silicone. The average oven cooks at 350-400 F or 180-200
C. I don't see this working as a consumer item. The adhesive will
bake in over time and rapidly become intractible.
A magnet on a sidearm to attach to the steel side will not like the
temp (Curie temperature). A wireless probe or any internal
electronics will not like the temp. Any gizmo set back on an oven
shelf will be hard to read through the (soiled) oven door window. A
thermistor, thermocouple, or remotely interrogated passive oscillator
is cheap - but not its readout. A liquid crystal strip won't like the
temp. Opposed optical flats will stick together nice as you please
without any adhesive at all, but they cannot be separated. Blackbody
detectors (Probe-Eye) are expensive. A strip of encapsulated salts
that go sequentially molten and clear with temp still must be attached
to the window.
Why don't you take a cheap bimetallic whatever and attach it to a
telescoping or articulated arm that grabs an oven shelf? KISS. |
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| Mike D2 |
Posted: Wed Sep 17, 2003 8:19 am |
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Guest
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Why don't you just leave the thermometer on the oven rack and look in the
window?
If you really want high tech buy some thermocouple wire, stick one end
inside the oven, the other end to your voltmeter or thermocouple temperature
measuring device (converts the voltage to temp for you with read out - just
in case you don't know how to use a calculator or how to plot a Voltage vs
Temp graph).
Or, go spend $100 and buy a cheap infra-red laser point pyrometer.
Are you trying to manually control the oven temp? What's wrong with the
oven thermostat?
This is getting too painful to watch. Do you work for the government or
something? Are you trying to dry out your pot? What ever happened to
common sense? |
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| Uncle Al |
Posted: Wed Sep 17, 2003 10:42 am |
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Guest
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Mike D2 wrote:
Quote:
Why don't you just leave the thermometer on the oven rack and look in the
window?
If you really want high tech buy some thermocouple wire, stick one end
inside the oven, the other end to your voltmeter or thermocouple temperature
measuring device (converts the voltage to temp for you with read out - just
in case you don't know how to use a calculator or how to plot a Voltage vs
Temp graph).
Or, go spend $100 and buy a cheap infra-red laser point pyrometer.
Are you trying to manually control the oven temp? What's wrong with the
oven thermostat?
This is getting too painful to watch. Do you work for the government or
something? Are you trying to dry out your pot? What ever happened to
common sense?
OEM oven thermostats are crap. If the general spec is better than
(+/-) 15 degrees, somebody is lying on the QA sheet before the things
go out to the loading dock. Gas or electric, the culinary world is
waiting for a proportional heater. (Those of you who think an oven is
used for heating up Kraft macaroni and cheeze [sic] need not read
further).
An oven window is typically fouled by deposits of pyrolyzed organics.
It is also often contains a mesh element to reflect IR or shield
broken glass. The average housewife (and worse) has the intelligence
of a gnat. The cost of this thing must be trivially small, its
operation utterly unscrewable, and its eventual disposal not subject
to the jackbooted State compassion of Haz-Mat, the EPA, or
Enviro-whiners (e.g., HgTe or CdTe sensing elements).
The simple solution is a cheap bimetallic oven thermometer on a cheap
articulated arm ending in a cheap spring clamp. You load the oven,
clamp the thermometer to a rack in extension, then when you close the
door the flat thermometer face snugs to the oven window. KISS.
A glue or adhesive is a bad engineering solution for a demountable
element on a glass oven window. Either it won't stick or it will
stick too tenaciously after aging. Demounting is bound to leave
intractible residues - certainly after being cooked for dozens of
hours in an pyrolyzing atmosphere with volatile contaminants.
Would you trust a housewife trying to pry a glue-on thermometer off an
oven window? My first three guesses would be a food knife, a nail
file, or a screwdriver. Betcha there is a hammer bringing up the
rear. It's a civil lawsuit with compensatory (includng medical
expenses and 3X/week to a chiropractor for the rest of her life) and
treble punitive damages waiting to be born.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
"Quis custodiet ipsos custodes?" The Net! |
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| Mike D2 |
Posted: Wed Sep 17, 2003 1:19 pm |
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Guest
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Quote: OEM oven thermostats are crap. If the general spec is better than
(+/-) 15 degrees, somebody is lying on the QA sheet before the things
go out to the loading dock. Gas or electric, the culinary world is
waiting for a proportional heater. (Those of you who think an oven is
used for heating up Kraft macaroni and cheeze [sic] need not read
further).
For some reason I think if its acceptable to use a standard kitchen oven to
heat "whatever", +/- 15 degrees means squat to your final product. I can
just picture you standing there adjusting the thermostat every 30 seconds to
try and maintain the "correct" temperature. Oh my gosh, did you remember to
compensate for the different temperature zones in the oven...?
Quote:
An oven window is typically fouled by deposits of pyrolyzed organics.
It is also often contains a mesh element to reflect IR or shield
broken glass. The average housewife (and worse) has the intelligence
of a gnat. The cost of this thing must be trivially small, its
operation utterly unscrewable, and its eventual disposal not subject
to the jackbooted State compassion of Haz-Mat, the EPA, or
Enviro-whiners (e.g., HgTe or CdTe sensing elements).
Who cares
Quote:
The simple solution is a cheap bimetallic oven thermometer on a cheap
articulated arm ending in a cheap spring clamp. You load the oven,
clamp the thermometer to a rack in extension, then when you close the
door the flat thermometer face snugs to the oven window. KISS.
I think DASS is a better acronym here. (Dumb Assed Stupid Solution)
Quote: Would you trust a housewife trying to pry a glue-on thermometer off an
oven window? My first three guesses would be a food knife, a nail ...
What ever happened to survival of the fittest? Oh yes, I forgot...the lower
you are on the food (i.e. intelligence) chain, the more you procreate to
make up for your stupidity.
I guess thats why post-graduate education was invented...it keeps a select
portion of the population off the street and out of trouble. Then they
become civil servants. |
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