Water-Soluble Resin

Definition - What does Water-Soluble Resin mean?

Water-soluble resins are the prime constituents of Latex-based paints or any water reducible coatings or paints because they completely dissolve in water and other solvents.

Water-soluble resins are generally found in coatings that are easily soluble in water, such as water-borne coatings, water reducible coatings or Latex-based paints. These coatings consist of well-known Latex products and the synthetic polymer based products. When mixed in water, these resins generally form dispersions of micelles rather than true solutions. The particles range in size from 0.01 to 0.1 micrometer, and produce a clear mixture in the absence of added pigment.

Water-soluble resin is also known as alkali-soluble resin.

Corrosionpedia explains Water-Soluble Resin

Coatings containing water soluble resins undergo poly-condensation or polymerization reactions. They contain binders that can be used in the formulation of epoxy and alkyd resins.

Water-soluble resins have following qualities:

  • High gloss
  • Coats porous material
  • Good 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, water-soluble resins produce an outstanding surface finish and protection. Heating and air movement devices decrease the curing time. Water-soluble resins can be used in conventional application techniques and by spraying.

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