The difference between oil and water-based glue
The water-based coating adhesive is made by emulsifying acrylic acid or polyurethane resin through a special emulsifying device using water as a solvent. Its biggest advantages are: variety, environmental protection, low price, there are many coatings are now using water-soluble glue, such as: general water-soluble PA, water-soluble PU and film adhesive, oily wax, scratch paste Functional paste. Water solubility, with its functionality, environmental protection, and low price, will be the direction of future coatings. The disadvantages are poor film formation, poor wash fastness, and PU can not be hot glue.
The oily coating adhesive is an oily solvent (toluene, DMF, butanone, etc.) as a solvent, and dissolves acrylic or polyurethane. Its advantages are good film formation and good fastness. PU can be glued with hot wind glue, which is the commonly used coating glue. The disadvantage is that due to the use of oily solvents, there is a lack of environmental protection. In particular, the current rise in oil prices has led to soaring oil-based solvent prices. Most of the coating adhesives use relatively poor oil solvents due to their high cost. Environmental protection is not up to standard. In addition, with the further improvement of environmental protection standards in various countries, environmental protection requirements for coating adhesives are getting higher and higher.