I wonder if anyone has any knowledge of the possible
health effects, if any, of using a substance called Methyl
Ethyl Ketone, (MEK) in the Microweld system.
I have used it for the last three Terry, here is some information
I found at http://rtk.net/E10147T676, hope it helps.
Effects of methyl ethyl ketone on human health and the
environment depend on how much MEK is present and the length and
frequency of exposure. Effects also depend on the health of a
person or the condition of the environment when exposure occurs.
Breathing MEK for short periods of time, such as when painting
in a poorly vented area, can adversely affect the nervous system.
Effects range from headaches, dizziness, nausea, and numbness in
fingers and toes to unconsciousness. MEK vapor irritates the
eyes, the nose, and the throat. Direct, prolonged contact with
liquid methyl ethyl ketone irritates the skin and damages the
eyes. These effects are not expected to occur at levels of MEK
that are normally found in the environment.
Human health effects associated with breathing or otherwise
consuming smaller amounts of methyl ethyl ketone over long
periods of time are not known. Workers have developed
dermatitis, upset stomachs, loss of appetite, headaches,
dizziness, and weakness as a result of repeated exposure to MEK.
Laboratory studies show that exposure to large amounts of MEK in
air causes animals to give birth to smaller offspring. Studies
also show that repeat exposure to large amounts of MEK in air
causes adverse liver and kidney effects in animals.