Glass water production is simple, small investment, high profits, low market entry threshold, so the competition is extremely fierce, the key is whether you sell
The official name of water glass windshield washing liquid, its main purpose is to design a sunny day scraping stick on glass dust, stains prevent wiper and blow dry glass damage. But now businesses not only have to copy the formal name change, even function. A glass of water into balm can do. According to the car industry standards (technical specification for electric automobile windshield washer QCT 246-1997) regulations 3.3 washing liquid: the water hardness is lower than 205g/1000kg (that is, ordinary tap water) water solution in winter by adding appropriate amount of additives. (the so-called commercial commercial additives that can add antifreeze, general, alcohol or glycerin their proportion is 7.5:92.5).
Antifreeze additive ratio of 7.5:92.5 to 20 degrees below zero does not freeze, if we want to lower the temperature not only increase the ratio of glycerol alcohol or frozen. So long as the hardness is lower than 205g/1000kg of the water can be used, such as there is some commercial additive for ambient temperature (i.e. alcohol or glycerin). In order to have the commercial signs need to add a little amount of transparent the pigment, in order to prevent a long time without washing liquid water. Microbial multiplication causes water quality deterioration smelly need to add a little amount of preservatives (sodium nitrite or salt) composition does not contain any harmful substances, toxic, corrosive