Make a fixing solution
Due to the solubility and volatility of rosin, and the principle that it can quickly condense into a layer of "solid and transparent film" after volatilization, painters generally make "fixed painting" liquid in order to protect the picture and prevent the "sketch painting" from being wiped off, that is, one part rosin powder, nine parts alcohol, or xylene solvent ratio, first put rosin into a better sealed glass, and then put the alcohol, Or xylene pour in, cover, and dissolve by itself after two days. When used, shake and pour into the watering can, 20 cm away from the picture, evenly spray to the picture, spray at any time, volatilize at any time, dry after a few minutes, and then not afraid to be rubbed off. Note: Rosin can not be more, more will be "yellow, dark "
Flux
Because the metal surface will generate an oxide film after contact with the air, the higher the temperature, the thicker the oxide layer. This oxide film prevents the liquid solder from wetting the metal, just as oil on glass prevents water from wetting the glass. Flux is a special material for removing oxide film, also known as flux. Flux has three functions:
1. Removal of oxide film: the essence is that the substance in the flux is reduced to remove the oxide film, and the reaction product becomes a suspended slag, floating on the surface of the solder.
2. Prevent oxidation: After melting, it floats on the surface of the solder to form an isolation layer, thus preventing oxidation of the welding surface.
3. Reduce surface tension: increase solder fluidity and help solder wet welds.
Delivery: by sea
MOQ: 1 ton
Package: bags
OEM accepted
Provide free sample
Deliver within one month
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