Is flame retardant copper clad poisonous?
At present FR4 CCL common ingredient generally contains the following contents: epoxy resin, dicyandiamide, acetone, butanone, methyl two m file, filler and other ingredients, its main components are toxic or weak toxicity, so-called weak toxicity is under specific conditions can cause poisoning such as closed space, steam concentration generally higher, short-term exposure has obvious influence on the body does not, according to the staff I glue before contact exposure the above materials will appear obvious weight loss, sallow complexion, though not sure whether the accumulation of toxins caused by long-term exposure to the body, but want to certainly influence.
Hello, the CCL must conform to ROSH directive and some other documents related to the environment, also said that some have clearly carcinogenic, environmental pollution elements are banned or limited use in the case can not be replaced, but not equal to the CCL production process will not produce toxic.
In addition according to you you should do our paper substrate may be relatively large, copper containing methanol glue (industrial alcohol), the long-term contact is also a bad reaction to the body, due to the specific components of the copper foil tape is not very understanding, no way to give more advice, please forgive me!
