Silver paste

Silver paste is a viscous mechanical mixture composed of high-purity (99.9) metallic silver particles, binders, solvents, and additives. shaped slurry.

Note that it is "particles of metallic silver" and not "mercury (mercury)"

Mercury is a liquid metal, while metallic silver particles are solid and are relatively less harmful.

However, please note that in addition to metallic silver particles, silver paste also requires the preparation of "adhesives, solvents, and additives."

The "adhesive" is mainly resin, which itself is non-toxic, but the resin additives are slightly toxic.

The "solvents" generally use butyl anhydride acetate, diethylene glycol butyl ether acetate, diethylene glycol ether acetate, isophorone, etc. These have certain toxicity and have been certified by the state. Standard, professional consultation is required.

"Auxiliaries" are antioxidants, stabilizers, etc., which are slightly toxic.

Generally speaking, silver paste is a chemical product. Needless to say, as long as it is a chemical product, it is definitely toxic.

However, ordinary chemicals, if properly protected during production operations, are less harmful to the human body. But it’s hard to tell if the factory’s work protection is not standardized.

The solar photovoltaic industry is a highly polluting industry (please distinguish the difference between "solar energy", a green energy, and the "photovoltaic industry"), so since it is processing and producing cells, contact with pollutants and toxic substances is inevitable Less, especially for single crystal and polycrystalline refining and other work.

So necessary protection is necessary.