Definition - What does Waterborne Coating mean?
A waterborne coating is an environmentally friendly surface treatment that uses water as a solvent to disperse the resin used to make the coating or paint: Water takes 80% of the solvent used. Its aim is to make the coating or paint easy to apply and also be an eco-friendly product. Waterborne coatings are widely used due to their low VOC (volatile organic compounds) content (less than 3.5 pounds per gallon of water). It can be applied on wood (e.g., furniture) and plastic substrates.
Corrosionpedia explains Waterborne Coating
This type of coating contains water-soluble resin; hence it completely dissolves in water and other solvents. A waterborne coating contains organic co-solvents since it undergoes poly-condensation or polymerization reactions. It has the following qualities:
- High gloss
- High corrosion protection
- Wetting and stabilization
- Good pigmentation
- Good flow and leveling properties
- Good resistance to heat and abrasion
- Low toxicity and flammability
- Cleans easily with water or water-based solutions
Although it takes longer to dry, it produces an outstanding surface finish and protection. Heating and air movement devices increase the curing time. It can be used in conventional application techniques and by spraying. Waterborne coating is one of the best for use on porous material. It contains binders that can be used in the formulation of epoxy and alkyd resins.